diff --git a/Marlin/src/pins/ramps/pins_RAMPS.h b/Marlin/src/pins/ramps/pins_RAMPS.h
index aa4da26c2e..0c96131315 100644
--- a/Marlin/src/pins/ramps/pins_RAMPS.h
+++ b/Marlin/src/pins/ramps/pins_RAMPS.h
@@ -229,9 +229,7 @@
 
 #ifndef FAN_PIN
   #if EITHER(IS_RAMPS_EFB, IS_RAMPS_EFF)          // Hotend, Fan, Bed or Hotend, Fan, Fan
-    #ifndef FAN_PIN
-      #define FAN_PIN      RAMPS_D9_PIN
-    #endif
+    #define FAN_PIN        RAMPS_D9_PIN
   #elif EITHER(IS_RAMPS_EEF, IS_RAMPS_SF)         // Hotend, Hotend, Fan or Spindle, Fan
     #define FAN_PIN        RAMPS_D8_PIN
   #elif ENABLED(IS_RAMPS_EEB)                  // Hotend, Hotend, Bed
diff --git a/config/examples/Renkforce/RF100/Configuration.h b/config/examples/Renkforce/RF100/Configuration.h
index 30b9547f68..b92103ccd2 100644
--- a/config/examples/Renkforce/RF100/Configuration.h
+++ b/config/examples/Renkforce/RF100/Configuration.h
@@ -466,7 +466,7 @@
 #define PID_K1 0.95      // Smoothing factor within any PID loop
 #if ENABLED(PIDTEMP)
   //#define PID_EDIT_MENU         // Add PID editing to the "Advanced Settings" menu. (~700 bytes of PROGMEM)
-  //#define PID_AUTOTUNE_MENU     // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
+  #define PID_AUTOTUNE_MENU       // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
   //#define PID_DEBUG             // Sends debug data to the serial port.
   //#define PID_OPENLOOP 1        // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
   //#define SLOW_PWM_HEATERS      // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
@@ -477,10 +477,15 @@
 
   // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
 
+  // Renkforce RF100
+  #define DEFAULT_Kp 19.0
+  #define DEFAULT_Ki 1.30
+  #define DEFAULT_Kd 70.1
+
   // Ultimaker
-  #define DEFAULT_Kp 22.2
-  #define DEFAULT_Ki 1.08
-  #define DEFAULT_Kd 114
+  //#define DEFAULT_Kp 22.2
+  //#define DEFAULT_Ki 1.08
+  //#define DEFAULT_Kd 114
 
   // MakerGear
   //#define DEFAULT_Kp 7.0
diff --git a/config/examples/Renkforce/RF100XL/Configuration.h b/config/examples/Renkforce/RF100XL/Configuration.h
index e3db8e40c1..801e1a7509 100644
--- a/config/examples/Renkforce/RF100XL/Configuration.h
+++ b/config/examples/Renkforce/RF100XL/Configuration.h
@@ -466,7 +466,7 @@
 #define PID_K1 0.95      // Smoothing factor within any PID loop
 #if ENABLED(PIDTEMP)
   //#define PID_EDIT_MENU         // Add PID editing to the "Advanced Settings" menu. (~700 bytes of PROGMEM)
-  //#define PID_AUTOTUNE_MENU     // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
+  #define PID_AUTOTUNE_MENU       // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
   //#define PID_DEBUG             // Sends debug data to the serial port.
   //#define PID_OPENLOOP 1        // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
   //#define SLOW_PWM_HEATERS      // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
@@ -477,10 +477,15 @@
 
   // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
 
+  // Renkforce RF100
+  #define DEFAULT_Kp 19.0
+  #define DEFAULT_Ki 1.30
+  #define DEFAULT_Kd 70.1
+
   // Ultimaker
-  #define DEFAULT_Kp 22.2
-  #define DEFAULT_Ki 1.08
-  #define DEFAULT_Kd 114
+  //#define DEFAULT_Kp 22.2
+  //#define DEFAULT_Ki 1.08
+  //#define DEFAULT_Kd 114
 
   // MakerGear
   //#define DEFAULT_Kp 7.0
diff --git a/config/examples/Renkforce/RF100v2/Configuration.h b/config/examples/Renkforce/RF100v2/Configuration.h
index 95412d43e7..5aa84604d5 100644
--- a/config/examples/Renkforce/RF100v2/Configuration.h
+++ b/config/examples/Renkforce/RF100v2/Configuration.h
@@ -466,7 +466,7 @@
 #define PID_K1 0.95      // Smoothing factor within any PID loop
 #if ENABLED(PIDTEMP)
   //#define PID_EDIT_MENU         // Add PID editing to the "Advanced Settings" menu. (~700 bytes of PROGMEM)
-  //#define PID_AUTOTUNE_MENU     // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
+  #define PID_AUTOTUNE_MENU       // Add PID auto-tuning to the "Advanced Settings" menu. (~250 bytes of PROGMEM)
   //#define PID_DEBUG             // Sends debug data to the serial port.
   //#define PID_OPENLOOP 1        // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
   //#define SLOW_PWM_HEATERS      // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
@@ -477,10 +477,15 @@
 
   // If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
 
+  // Renkforce RF100
+  #define DEFAULT_Kp 19.0
+  #define DEFAULT_Ki 1.30
+  #define DEFAULT_Kd 70.1
+
   // Ultimaker
-  #define DEFAULT_Kp 22.2
-  #define DEFAULT_Ki 1.08
-  #define DEFAULT_Kd 114
+  //#define DEFAULT_Kp 22.2
+  //#define DEFAULT_Ki 1.08
+  //#define DEFAULT_Kd 114
 
   // MakerGear
   //#define DEFAULT_Kp 7.0