diff --git a/Marlin/Conditionals_post.h b/Marlin/Conditionals_post.h
index 4bbc5d771..95054af1e 100644
--- a/Marlin/Conditionals_post.h
+++ b/Marlin/Conditionals_post.h
@@ -428,20 +428,20 @@
   #define HAS_HEATER_2 (PIN_EXISTS(HEATER_2))
   #define HAS_HEATER_3 (PIN_EXISTS(HEATER_3))
   #define HAS_HEATER_BED (PIN_EXISTS(HEATER_BED))
-  #define HAS_AUTO_FAN_0 (PIN_EXISTS(EXTRUDER_0_AUTO_FAN))
-  #define HAS_AUTO_FAN_1 (PIN_EXISTS(EXTRUDER_1_AUTO_FAN))
-  #define HAS_AUTO_FAN_2 (PIN_EXISTS(EXTRUDER_2_AUTO_FAN))
-  #define HAS_AUTO_FAN_3 (PIN_EXISTS(EXTRUDER_3_AUTO_FAN))
-  #define AUTO_1_IS_0 (EXTRUDER_1_AUTO_FAN_PIN == EXTRUDER_0_AUTO_FAN_PIN)
-  #define AUTO_2_IS_0 (EXTRUDER_2_AUTO_FAN_PIN == EXTRUDER_0_AUTO_FAN_PIN)
-  #define AUTO_2_IS_1 (EXTRUDER_2_AUTO_FAN_PIN == EXTRUDER_1_AUTO_FAN_PIN)
-  #define AUTO_3_IS_0 (EXTRUDER_3_AUTO_FAN_PIN == EXTRUDER_0_AUTO_FAN_PIN)
-  #define AUTO_3_IS_1 (EXTRUDER_3_AUTO_FAN_PIN == EXTRUDER_1_AUTO_FAN_PIN)
-  #define AUTO_3_IS_2 (EXTRUDER_3_AUTO_FAN_PIN == EXTRUDER_2_AUTO_FAN_PIN)
+  #define HAS_AUTO_FAN_0 (PIN_EXISTS(E0_AUTO_FAN))
+  #define HAS_AUTO_FAN_1 (HOTENDS > 1 && PIN_EXISTS(E1_AUTO_FAN))
+  #define HAS_AUTO_FAN_2 (HOTENDS > 2 && PIN_EXISTS(E2_AUTO_FAN))
+  #define HAS_AUTO_FAN_3 (HOTENDS > 3 && PIN_EXISTS(E3_AUTO_FAN))
   #define HAS_AUTO_FAN (HAS_AUTO_FAN_0 || HAS_AUTO_FAN_1 || HAS_AUTO_FAN_2 || HAS_AUTO_FAN_3)
+  #define AUTO_1_IS_0 (E1_AUTO_FAN_PIN == E0_AUTO_FAN_PIN)
+  #define AUTO_2_IS_0 (E2_AUTO_FAN_PIN == E0_AUTO_FAN_PIN)
+  #define AUTO_2_IS_1 (E2_AUTO_FAN_PIN == E1_AUTO_FAN_PIN)
+  #define AUTO_3_IS_0 (E3_AUTO_FAN_PIN == E0_AUTO_FAN_PIN)
+  #define AUTO_3_IS_1 (E3_AUTO_FAN_PIN == E1_AUTO_FAN_PIN)
+  #define AUTO_3_IS_2 (E3_AUTO_FAN_PIN == E2_AUTO_FAN_PIN)
   #define HAS_FAN0 (PIN_EXISTS(FAN))
-  #define HAS_FAN1 (PIN_EXISTS(FAN1) && CONTROLLERFAN_PIN != FAN1_PIN && EXTRUDER_0_AUTO_FAN_PIN != FAN1_PIN && EXTRUDER_1_AUTO_FAN_PIN != FAN1_PIN && EXTRUDER_2_AUTO_FAN_PIN != FAN1_PIN && EXTRUDER_3_AUTO_FAN_PIN != FAN1_PIN)
-  #define HAS_FAN2 (PIN_EXISTS(FAN2) && CONTROLLERFAN_PIN != FAN2_PIN && EXTRUDER_0_AUTO_FAN_PIN != FAN2_PIN && EXTRUDER_1_AUTO_FAN_PIN != FAN2_PIN && EXTRUDER_2_AUTO_FAN_PIN != FAN2_PIN && EXTRUDER_3_AUTO_FAN_PIN != FAN2_PIN)
+  #define HAS_FAN1 (PIN_EXISTS(FAN1) && CONTROLLERFAN_PIN != FAN1_PIN && E0_AUTO_FAN_PIN != FAN1_PIN && E1_AUTO_FAN_PIN != FAN1_PIN && E2_AUTO_FAN_PIN != FAN1_PIN && E3_AUTO_FAN_PIN != FAN1_PIN)
+  #define HAS_FAN2 (PIN_EXISTS(FAN2) && CONTROLLERFAN_PIN != FAN2_PIN && E0_AUTO_FAN_PIN != FAN2_PIN && E1_AUTO_FAN_PIN != FAN2_PIN && E2_AUTO_FAN_PIN != FAN2_PIN && E3_AUTO_FAN_PIN != FAN2_PIN)
   #define HAS_CONTROLLERFAN (PIN_EXISTS(CONTROLLERFAN))
   #define HAS_SERVOS (defined(NUM_SERVOS) && NUM_SERVOS > 0)
   #define HAS_SERVO_0 (PIN_EXISTS(SERVO0))
diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index a0a65f9c2..067d86c48 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index 10a7d6fc6..a21970156 100755
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -9248,8 +9248,14 @@ void prepare_move_to_destination() {
       bool new_led = (max_temp > 55.0) ? true : (max_temp < 54.0) ? false : red_led;
       if (new_led != red_led) {
         red_led = new_led;
-        WRITE(STAT_LED_RED_PIN, new_led ? HIGH : LOW);
-        WRITE(STAT_LED_BLUE_PIN, new_led ? LOW : HIGH);
+        #if PIN_EXISTS(STAT_LED_RED)
+          WRITE(STAT_LED_RED_PIN, new_led ? HIGH : LOW);
+          #if PIN_EXISTS(STAT_LED_BLUE)
+            WRITE(STAT_LED_BLUE_PIN, new_led ? LOW : HIGH);
+          #endif
+        #else
+          WRITE(STAT_LED_BLUE_PIN, new_led ? HIGH : LOW);
+        #endif
       }
     }
   }
diff --git a/Marlin/SanityCheck.h b/Marlin/SanityCheck.h
index cb3c8599a..3cd9adeb6 100644
--- a/Marlin/SanityCheck.h
+++ b/Marlin/SanityCheck.h
@@ -153,6 +153,8 @@
   #error "LCD_PIN_BL is now LCD_BACKLIGHT_PIN. Please update your pins definitions."
 #elif defined(LCD_PIN_RESET)
   #error "LCD_PIN_RESET is now LCD_RESET_PIN. Please update your pins definitions."
+#elif defined(EXTRUDER_0_AUTO_FAN_PIN) || defined(EXTRUDER_1_AUTO_FAN_PIN) || defined(EXTRUDER_2_AUTO_FAN_PIN) || defined(EXTRUDER_3_AUTO_FAN_PIN)
+  #error "EXTRUDER_[0123]_AUTO_FAN_PIN is now E[0123]_AUTO_FAN_PIN. Please update your Configuration_adv.h."
 #endif
 
 /**
@@ -678,14 +680,14 @@
  */
 #if HAS_AUTO_FAN
   #if HAS_FAN0
-    #if EXTRUDER_0_AUTO_FAN_PIN == FAN_PIN
-      #error "You cannot set EXTRUDER_0_AUTO_FAN_PIN equal to FAN_PIN."
-    #elif EXTRUDER_1_AUTO_FAN_PIN == FAN_PIN
-      #error "You cannot set EXTRUDER_1_AUTO_FAN_PIN equal to FAN_PIN."
-    #elif EXTRUDER_2_AUTO_FAN_PIN == FAN_PIN
-      #error "You cannot set EXTRUDER_2_AUTO_FAN_PIN equal to FAN_PIN."
-    #elif EXTRUDER_3_AUTO_FAN_PIN == FAN_PIN
-      #error "You cannot set EXTRUDER_3_AUTO_FAN_PIN equal to FAN_PIN."
+    #if E0_AUTO_FAN_PIN == FAN_PIN
+      #error "You cannot set E0_AUTO_FAN_PIN equal to FAN_PIN."
+    #elif E1_AUTO_FAN_PIN == FAN_PIN
+      #error "You cannot set E1_AUTO_FAN_PIN equal to FAN_PIN."
+    #elif E2_AUTO_FAN_PIN == FAN_PIN
+      #error "You cannot set E2_AUTO_FAN_PIN equal to FAN_PIN."
+    #elif E3_AUTO_FAN_PIN == FAN_PIN
+      #error "You cannot set E3_AUTO_FAN_PIN equal to FAN_PIN."
     #endif
   #endif
 #endif
@@ -695,14 +697,14 @@
 #endif
 
 #if HAS_CONTROLLERFAN
-  #if EXTRUDER_0_AUTO_FAN_PIN == CONTROLLERFAN_PIN
-    #error "You cannot set EXTRUDER_0_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
-  #elif EXTRUDER_1_AUTO_FAN_PIN == CONTROLLERFAN_PIN
-    #error "You cannot set EXTRUDER_1_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
-  #elif EXTRUDER_2_AUTO_FAN_PIN == CONTROLLERFAN_PIN
-    #error "You cannot set EXTRUDER_2_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
-  #elif EXTRUDER_3_AUTO_FAN_PIN == CONTROLLERFAN_PIN
-    #error "You cannot set EXTRUDER_3_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
+  #if E0_AUTO_FAN_PIN == CONTROLLERFAN_PIN
+    #error "You cannot set E0_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
+  #elif E1_AUTO_FAN_PIN == CONTROLLERFAN_PIN
+    #error "You cannot set E1_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
+  #elif E2_AUTO_FAN_PIN == CONTROLLERFAN_PIN
+    #error "You cannot set E2_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
+  #elif E3_AUTO_FAN_PIN == CONTROLLERFAN_PIN
+    #error "You cannot set E3_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
   #endif
 #endif
 
@@ -770,8 +772,8 @@
 /**
  * Temperature status LEDs
  */
-#if ENABLED(TEMP_STAT_LEDS) && !(PIN_EXISTS(STAT_LED_RED) && PIN_EXISTS(STAT_LED_BLUE))
-  #error "TEMP_STAT_LEDS requires STAT_LED_RED_PIN and STAT_LED_BLUE_PIN."
+#if ENABLED(TEMP_STAT_LEDS) && !PIN_EXISTS(STAT_LED_RED) && !PIN_EXISTS(STAT_LED_BLUE)
+  #error "TEMP_STAT_LEDS requires STAT_LED_RED_PIN or STAT_LED_BLUE_PIN, preferably both."
 #endif
 
 /**
@@ -868,6 +870,23 @@
   #endif
 #endif
 
+/**
+ * Auto Fan check for PWM pins
+ */
+#if HAS_AUTO_FAN && EXTRUDER_AUTO_FAN_SPEED != 255
+  #define AF_ERR_SUFF "_AUTO_FAN_PIN is not a PWM pin. Set EXTRUDER_AUTO_FAN_SPEED to 255."
+  #if HAS_AUTO_FAN_0
+    static_assert(GET_TIMER(E0_AUTO_FAN_PIN), "E0" AF_ERR_SUFF);
+  #elif HAS_AUTO_FAN_1
+    static_assert(GET_TIMER(E1_AUTO_FAN_PIN), "E1" AF_ERR_SUFF);
+  #elif HAS_AUTO_FAN_2
+    static_assert(GET_TIMER(E2_AUTO_FAN_PIN), "E2" AF_ERR_SUFF);
+  #elif HAS_AUTO_FAN_3
+    static_assert(GET_TIMER(E3_AUTO_FAN_PIN), "E3" AF_ERR_SUFF);
+  #endif
+#endif
+
+
 /**
  * Make sure only one display is enabled
  *
@@ -942,7 +961,7 @@
 #else
   #define COUNT_LCD_13 COUNT_LCD_12
 #endif
-#if ENABLED(REPRAPWORLD_KEYPAD)
+#if ENABLED(REPRAPWORLD_KEYPAD) && DISABLED(CARTESIO_UI)
   #define COUNT_LCD_14 INCREMENT(COUNT_LCD_13)
 #else
   #define COUNT_LCD_14 COUNT_LCD_13
diff --git a/Marlin/example_configurations/Cartesio/Configuration_adv.h b/Marlin/example_configurations/Cartesio/Configuration_adv.h
index 98e491221..0cef74a09 100644
--- a/Marlin/example_configurations/Cartesio/Configuration_adv.h
+++ b/Marlin/example_configurations/Cartesio/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN 7
-#define EXTRUDER_1_AUTO_FAN_PIN 7
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+//#define E0_AUTO_FAN_PIN -1
+//#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 35
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Felix/Configuration_adv.h b/Marlin/example_configurations/Felix/Configuration_adv.h
index 4138656e2..7139ac135 100644
--- a/Marlin/example_configurations/Felix/Configuration_adv.h
+++ b/Marlin/example_configurations/Felix/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Hephestos/Configuration_adv.h b/Marlin/example_configurations/Hephestos/Configuration_adv.h
index fb337fc77..8f04e5ea3 100644
--- a/Marlin/example_configurations/Hephestos/Configuration_adv.h
+++ b/Marlin/example_configurations/Hephestos/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/Hephestos_2/Configuration_adv.h b/Marlin/example_configurations/Hephestos_2/Configuration_adv.h
index e5c46ae26..b221ab74c 100644
--- a/Marlin/example_configurations/Hephestos_2/Configuration_adv.h
+++ b/Marlin/example_configurations/Hephestos_2/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN 11
-#define EXTRUDER_1_AUTO_FAN_PIN  6
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+//#define E0_AUTO_FAN_PIN -1
+//#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/K8200/Configuration_adv.h b/Marlin/example_configurations/K8200/Configuration_adv.h
index 0985448e1..8ea34fc92 100644
--- a/Marlin/example_configurations/K8200/Configuration_adv.h
+++ b/Marlin/example_configurations/K8200/Configuration_adv.h
@@ -211,15 +211,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/K8400/Configuration_adv.h b/Marlin/example_configurations/K8400/Configuration_adv.h
index ebb9e8371..3cc822cc4 100644
--- a/Marlin/example_configurations/K8400/Configuration_adv.h
+++ b/Marlin/example_configurations/K8400/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/RigidBot/Configuration_adv.h b/Marlin/example_configurations/RigidBot/Configuration_adv.h
index ad70111aa..71166d48d 100644
--- a/Marlin/example_configurations/RigidBot/Configuration_adv.h
+++ b/Marlin/example_configurations/RigidBot/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/SCARA/Configuration_adv.h b/Marlin/example_configurations/SCARA/Configuration_adv.h
index 331234018..706f41270 100644
--- a/Marlin/example_configurations/SCARA/Configuration_adv.h
+++ b/Marlin/example_configurations/SCARA/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/TAZ4/Configuration_adv.h b/Marlin/example_configurations/TAZ4/Configuration_adv.h
index 28eab90c7..2a39074b7 100644
--- a/Marlin/example_configurations/TAZ4/Configuration_adv.h
+++ b/Marlin/example_configurations/TAZ4/Configuration_adv.h
@@ -213,15 +213,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/WITBOX/Configuration_adv.h b/Marlin/example_configurations/WITBOX/Configuration_adv.h
index fb337fc77..8f04e5ea3 100644
--- a/Marlin/example_configurations/WITBOX/Configuration_adv.h
+++ b/Marlin/example_configurations/WITBOX/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h b/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h
index e22c36ce7..0a0036972 100644
--- a/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins.
+ * Override those here. Set to -1 to disable unused fans.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/generic/Configuration_adv.h b/Marlin/example_configurations/delta/generic/Configuration_adv.h
index d8da99e48..009fad39a 100644
--- a/Marlin/example_configurations/delta/generic/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/generic/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
index d8da99e48..009fad39a 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
index 8f80d130c..33aed463b 100644
--- a/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
@@ -210,15 +210,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h b/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
index 698f9270b..70f035f3d 100644
--- a/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/makibox/Configuration_adv.h b/Marlin/example_configurations/makibox/Configuration_adv.h
index d1a0f66fa..279fa7e32 100644
--- a/Marlin/example_configurations/makibox/Configuration_adv.h
+++ b/Marlin/example_configurations/makibox/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h b/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
index f68070341..bea6cd5dd 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
@@ -205,15 +205,22 @@
 
 // @section extruder
 
-// Extruder cooling fans
-// Configure fan pin outputs to automatically turn on/off when the associated
-// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
-// Multiple extruders can be assigned to the same pin in which case
-// the fan will turn on when any selected extruder is above the threshold.
-#define EXTRUDER_0_AUTO_FAN_PIN -1
-#define EXTRUDER_1_AUTO_FAN_PIN -1
-#define EXTRUDER_2_AUTO_FAN_PIN -1
-#define EXTRUDER_3_AUTO_FAN_PIN -1
+/**
+ * Extruder cooling fans
+ *
+ * Extruder auto fans automatically turn on when their extruders'
+ * temperatures go above EXTRUDER_AUTO_FAN_TEMPERATURE.
+ *
+ * Your board's pins file specifies the recommended pins. Override those here
+ * or set to -1 to disable completely.
+ *
+ * Multiple extruders can be assigned to the same pin in which case
+ * the fan will turn on when any selected extruder is above the threshold.
+ */
+#define E0_AUTO_FAN_PIN -1
+#define E1_AUTO_FAN_PIN -1
+#define E2_AUTO_FAN_PIN -1
+#define E3_AUTO_FAN_PIN -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Marlin/fastio.h b/Marlin/fastio.h
index ed1da59b9..98724231f 100644
--- a/Marlin/fastio.h
+++ b/Marlin/fastio.h
@@ -79,7 +79,7 @@
 #define _GET_OUTPUT(IO)  ((DIO ## IO ## _DDR & MASK(DIO ## IO ## _PIN)) != 0)
 
 /// check if pin is an timer
-#define _GET_TIMER(IO)  ((DIO ## IO ## _PWM)
+#define _GET_TIMER(IO)  (DIO ## IO ## _PWM)
 
 //  why double up on these macros? see http://gcc.gnu.org/onlinedocs/cpp/Stringification.html
 
@@ -93,6 +93,8 @@
 
 /// set pin as input wrapper
 #define SET_INPUT(IO)  _SET_INPUT(IO)
+/// set pin as input with pullup wrapper
+#define SET_INPUT_PULLUP(IO) do{ _SET_INPUT(IO); _WRITE(IO, HIGH); }while(0)
 /// set pin as output wrapper
 #define SET_OUTPUT(IO)  _SET_OUTPUT(IO)
 
diff --git a/Marlin/pins.h b/Marlin/pins.h
index f0720d7bf..b2701ae28 100644
--- a/Marlin/pins.h
+++ b/Marlin/pins.h
@@ -282,6 +282,22 @@
 // Marlin needs to account for pins that equal -1
 #define marlinAnalogInputToDigitalPin(p) ((p) == -1 ? -1 : analogInputToDigitalPin(p))
 
+//
+// Assign auto fan pins if needed
+//
+#if !defined(E0_AUTO_FAN_PIN) && defined(ORIG_E0_AUTO_FAN_PIN)
+  #define E0_AUTO_FAN_PIN ORIG_E0_AUTO_FAN_PIN
+#endif
+#if !defined(E1_AUTO_FAN_PIN) && defined(ORIG_E1_AUTO_FAN_PIN)
+  #define E1_AUTO_FAN_PIN ORIG_E1_AUTO_FAN_PIN
+#endif
+#if !defined(E2_AUTO_FAN_PIN) && defined(ORIG_E2_AUTO_FAN_PIN)
+  #define E2_AUTO_FAN_PIN ORIG_E2_AUTO_FAN_PIN
+#endif
+#if !defined(E3_AUTO_FAN_PIN) && defined(ORIG_E3_AUTO_FAN_PIN)
+  #define E3_AUTO_FAN_PIN ORIG_E3_AUTO_FAN_PIN
+#endif
+
 // List of pins which to ignore when asked to change by gcode, 0 and 1 are RX and TX, do not mess with those!
 #define _E0_PINS E0_STEP_PIN, E0_DIR_PIN, E0_ENABLE_PIN, E0_MS1_PIN, E0_MS2_PIN,
 #define _E1_PINS
@@ -306,7 +322,7 @@
   #endif
 #endif
 
-#define _H0_PINS HEATER_0_PIN, EXTRUDER_0_AUTO_FAN_PIN, marlinAnalogInputToDigitalPin(TEMP_0_PIN),
+#define _H0_PINS HEATER_0_PIN, E0_AUTO_FAN_PIN, marlinAnalogInputToDigitalPin(TEMP_0_PIN),
 #define _H1_PINS
 #define _H2_PINS
 #define _H3_PINS
@@ -314,13 +330,13 @@
 
 #if HOTENDS > 1
   #undef _H1_PINS
-  #define _H1_PINS HEATER_1_PIN, EXTRUDER_1_AUTO_FAN_PIN, marlinAnalogInputToDigitalPin(TEMP_1_PIN),
+  #define _H1_PINS HEATER_1_PIN, E1_AUTO_FAN_PIN, marlinAnalogInputToDigitalPin(TEMP_1_PIN),
   #if HOTENDS > 2
     #undef _H2_PINS
-    #define _H2_PINS HEATER_2_PIN, EXTRUDER_2_AUTO_FAN_PIN, marlinAnalogInputToDigitalPin(TEMP_2_PIN),
+    #define _H2_PINS HEATER_2_PIN, E2_AUTO_FAN_PIN, marlinAnalogInputToDigitalPin(TEMP_2_PIN),
     #if HOTENDS > 3
       #undef _H3_PINS
-      #define _H3_PINS HEATER_3_PIN, EXTRUDER_3_AUTO_FAN_PIN, marlinAnalogInputToDigitalPin(TEMP_3_PIN),
+      #define _H3_PINS HEATER_3_PIN, E3_AUTO_FAN_PIN, marlinAnalogInputToDigitalPin(TEMP_3_PIN),
       #if HOTENDS > 4
         #undef _H4_PINS
         #define _H4_PINS HEATER_4_PIN, marlinAnalogInputToDigitalPin(TEMP_4_PIN),
diff --git a/Marlin/pinsDebug.h b/Marlin/pinsDebug.h
index d0b43a479..c06eabbe6 100644
--- a/Marlin/pinsDebug.h
+++ b/Marlin/pinsDebug.h
@@ -234,17 +234,17 @@ static bool report_pin_name(int8_t pin) {
   #if PIN_EXISTS(CONTROLLERFAN)
     PIN_SAY(CONTROLLERFAN_PIN);
   #endif
-  #if PIN_EXISTS(EXTRUDER_0_AUTO_FAN)
-    PIN_SAY(EXTRUDER_0_AUTO_FAN_PIN);
+  #if PIN_EXISTS(E0_AUTO_FAN)
+    PIN_SAY(E0_AUTO_FAN_PIN);
   #endif
-  #if PIN_EXISTS(EXTRUDER_1_AUTO_FAN)
-    PIN_SAY(EXTRUDER_1_AUTO_FAN_PIN);
+  #if PIN_EXISTS(E1_AUTO_FAN)
+    PIN_SAY(E1_AUTO_FAN_PIN);
   #endif
-  #if PIN_EXISTS(EXTRUDER_2_AUTO_FAN)
-    PIN_SAY(EXTRUDER_2_AUTO_FAN_PIN);
+  #if PIN_EXISTS(E2_AUTO_FAN)
+    PIN_SAY(E2_AUTO_FAN_PIN);
   #endif
-  #if PIN_EXISTS(EXTRUDER_3_AUTO_FAN)
-    PIN_SAY(EXTRUDER_3_AUTO_FAN_PIN);
+  #if PIN_EXISTS(E3_AUTO_FAN)
+    PIN_SAY(E3_AUTO_FAN_PIN);
   #endif
   #if PIN_EXISTS(HEATER_0)
     PIN_SAY(HEATER_0_PIN);
diff --git a/Marlin/pins_AZTEEG_X3_PRO.h b/Marlin/pins_AZTEEG_X3_PRO.h
index 99720613a..06c293410 100644
--- a/Marlin/pins_AZTEEG_X3_PRO.h
+++ b/Marlin/pins_AZTEEG_X3_PRO.h
@@ -106,10 +106,10 @@
 #define CONTROLLERFAN_PIN   4 // Pin used for the fan to cool motherboard (-1 to disable)
 
 // Fans/Water Pump to cool the hotend cool side.
-#define EXTRUDER_0_AUTO_FAN_PIN   5
-#define EXTRUDER_1_AUTO_FAN_PIN   5
-#define EXTRUDER_2_AUTO_FAN_PIN   5
-#define EXTRUDER_3_AUTO_FAN_PIN   5
+#define ORIG_E0_AUTO_FAN_PIN 5
+#define ORIG_E1_AUTO_FAN_PIN 5
+#define ORIG_E2_AUTO_FAN_PIN 5
+#define ORIG_E3_AUTO_FAN_PIN 5
 
 //
 // LCD / Controller
diff --git a/Marlin/pins_BQ_ZUM_MEGA_3D.h b/Marlin/pins_BQ_ZUM_MEGA_3D.h
index 8075265f0..dff48a452 100644
--- a/Marlin/pins_BQ_ZUM_MEGA_3D.h
+++ b/Marlin/pins_BQ_ZUM_MEGA_3D.h
@@ -38,6 +38,14 @@
 #define RAMPS_D10_PIN  9
 #define MOSFET_D_PIN   7
 
+//
+// Auto fans
+//
+#define ORIG_E0_AUTO_FAN_PIN 11
+#define ORIG_E1_AUTO_FAN_PIN  6
+#define ORIG_E2_AUTO_FAN_PIN  6 
+#define ORIG_E3_AUTO_FAN_PIN  6
+
 #include "pins_RAMPS_13.h"
 
 //
diff --git a/Marlin/pins_CNCONTROLS_11.h b/Marlin/pins_CNCONTROLS_11.h
index dfd4c19bd..fdf6c317e 100644
--- a/Marlin/pins_CNCONTROLS_11.h
+++ b/Marlin/pins_CNCONTROLS_11.h
@@ -69,6 +69,11 @@
 
 //#define FAN_PIN           7  // common PWM pin for all tools
 
+#define ORIG_E0_AUTO_FAN_PIN 7
+#define ORIG_E1_AUTO_FAN_PIN 7
+#define ORIG_E2_AUTO_FAN_PIN 7
+#define ORIG_E3_AUTO_FAN_PIN 7
+
 //
 // Misc. Functions
 //
diff --git a/Marlin/pins_CNCONTROLS_12.h b/Marlin/pins_CNCONTROLS_12.h
index aac4d8afc..809d1a6db 100644
--- a/Marlin/pins_CNCONTROLS_12.h
+++ b/Marlin/pins_CNCONTROLS_12.h
@@ -69,6 +69,11 @@
 
 #define FAN_PIN             5  // 5 is PWMtool3 -> 7 is common PWM pin for all tools
 
+#define ORIG_E0_AUTO_FAN_PIN 7
+#define ORIG_E1_AUTO_FAN_PIN 7
+#define ORIG_E2_AUTO_FAN_PIN 7
+#define ORIG_E3_AUTO_FAN_PIN 7
+
 //
 // Misc. Functions
 //
diff --git a/Marlin/temperature.cpp b/Marlin/temperature.cpp
index 08c88e6f8..b1f97eb61 100644
--- a/Marlin/temperature.cpp
+++ b/Marlin/temperature.cpp
@@ -454,7 +454,7 @@ int Temperature::getHeaterPower(int heater) {
 #if HAS_AUTO_FAN
 
   void Temperature::checkExtruderAutoFans() {
-    const int8_t fanPin[] = { EXTRUDER_0_AUTO_FAN_PIN, EXTRUDER_1_AUTO_FAN_PIN, EXTRUDER_2_AUTO_FAN_PIN, EXTRUDER_3_AUTO_FAN_PIN };
+    const int8_t fanPin[] = { E0_AUTO_FAN_PIN, E1_AUTO_FAN_PIN, E2_AUTO_FAN_PIN, E3_AUTO_FAN_PIN };
     const int fanBit[] = {
                     0,
       AUTO_1_IS_0 ? 0 :               1,
@@ -1043,43 +1043,43 @@ void Temperature::init() {
   #endif
 
   #if HAS_AUTO_FAN_0
-    #if EXTRUDER_0_AUTO_FAN_PIN == FAN1_PIN
-      SET_OUTPUT(EXTRUDER_0_AUTO_FAN_PIN);
+    #if E0_AUTO_FAN_PIN == FAN1_PIN
+      SET_OUTPUT(E0_AUTO_FAN_PIN);
       #if ENABLED(FAST_PWM_FAN)
-        setPwmFrequency(EXTRUDER_0_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
+        setPwmFrequency(E0_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
       #endif
     #else
-      pinMode(EXTRUDER_0_AUTO_FAN_PIN, OUTPUT);
+      SET_OUTPUT(E0_AUTO_FAN_PIN);
     #endif
   #endif
   #if HAS_AUTO_FAN_1 && !AUTO_1_IS_0
-    #if EXTRUDER_1_AUTO_FAN_PIN == FAN1_PIN
-      SET_OUTPUT(EXTRUDER_1_AUTO_FAN_PIN);
+    #if E1_AUTO_FAN_PIN == FAN1_PIN
+      SET_OUTPUT(E1_AUTO_FAN_PIN);
       #if ENABLED(FAST_PWM_FAN)
-        setPwmFrequency(EXTRUDER_1_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
+        setPwmFrequency(E1_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
       #endif
     #else
-      pinMode(EXTRUDER_1_AUTO_FAN_PIN, OUTPUT);
+      SET_OUTPUT(E1_AUTO_FAN_PIN);
     #endif
   #endif
   #if HAS_AUTO_FAN_2 && !AUTO_2_IS_0 && !AUTO_2_IS_1
-    #if EXTRUDER_2_AUTO_FAN_PIN == FAN1_PIN
-      SET_OUTPUT(EXTRUDER_2_AUTO_FAN_PIN);
+    #if E2_AUTO_FAN_PIN == FAN1_PIN
+      SET_OUTPUT(E2_AUTO_FAN_PIN);
       #if ENABLED(FAST_PWM_FAN)
-        setPwmFrequency(EXTRUDER_2_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
+        setPwmFrequency(E2_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
       #endif
     #else
-      pinMode(EXTRUDER_2_AUTO_FAN_PIN, OUTPUT);
+      SET_OUTPUT(E2_AUTO_FAN_PIN);
     #endif
   #endif
   #if HAS_AUTO_FAN_3 && !AUTO_3_IS_0 && !AUTO_3_IS_1 && !AUTO_3_IS_2
-    #if EXTRUDER_3_AUTO_FAN_PIN == FAN1_PIN
-      SET_OUTPUT(EXTRUDER_3_AUTO_FAN_PIN);
+    #if E3_AUTO_FAN_PIN == FAN1_PIN
+      SET_OUTPUT(E3_AUTO_FAN_PIN);
       #if ENABLED(FAST_PWM_FAN)
-        setPwmFrequency(EXTRUDER_3_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
+        setPwmFrequency(E3_AUTO_FAN_PIN, 1); // No prescaling. Pwm frequency = F_CPU/256/8
       #endif
     #else
-      pinMode(EXTRUDER_3_AUTO_FAN_PIN, OUTPUT);
+      SET_OUTPUT(E3_AUTO_FAN_PIN);
     #endif
   #endif
 
diff --git a/Marlin/ultralcd.cpp b/Marlin/ultralcd.cpp
index fb697dd3e..2c42874f3 100755
--- a/Marlin/ultralcd.cpp
+++ b/Marlin/ultralcd.cpp
@@ -2390,6 +2390,7 @@ void kill_screen(const char* lcd_msg) {
         case X_AXIS: lcd_move_x(); break;
         case Y_AXIS: lcd_move_y(); break;
         case Z_AXIS: lcd_move_z();
+        default: break;
       }
     }
     static void reprapworld_keypad_move_z_up()    { _reprapworld_keypad_move(Z_AXIS,  1); }
@@ -2490,11 +2491,9 @@ void lcd_init() {
     #endif
 
     #if ENABLED(REPRAPWORLD_KEYPAD)
-      pinMode(SHIFT_CLK, OUTPUT);
-      pinMode(SHIFT_LD, OUTPUT);
-      pinMode(SHIFT_OUT, INPUT);
-      WRITE(SHIFT_OUT, HIGH);
-      WRITE(SHIFT_LD, HIGH);
+      SET_OUTPUT(SHIFT_CLK);
+      OUT_WRITE(SHIFT_LD, HIGH);
+      SET_INPUT_PULLUP(SHIFT_OUT);
     #endif
 
     #if BUTTON_EXISTS(UP)
@@ -2513,16 +2512,13 @@ void lcd_init() {
   #else // !NEWPANEL
 
     #if ENABLED(SR_LCD_2W_NL) // Non latching 2 wire shift register
-      pinMode(SR_DATA_PIN, OUTPUT);
-      pinMode(SR_CLK_PIN, OUTPUT);
+      SET_OUTPUT(SR_DATA_PIN);
+      SET_OUTPUT(SR_CLK_PIN);
     #elif defined(SHIFT_CLK)
-      pinMode(SHIFT_CLK, OUTPUT);
-      pinMode(SHIFT_LD, OUTPUT);
-      pinMode(SHIFT_EN, OUTPUT);
-      pinMode(SHIFT_OUT, INPUT);
-      WRITE(SHIFT_OUT, HIGH);
-      WRITE(SHIFT_LD, HIGH);
-      WRITE(SHIFT_EN, LOW);
+      SET_OUTPUT(SHIFT_CLK);
+      OUT_WRITE(SHIFT_LD, HIGH);
+      OUT_WRITE(SHIFT_EN, LOW);
+      SET_INPUT_PULLUP(SHIFT_OUT);
     #endif // SR_LCD_2W_NL
 
   #endif // !NEWPANEL