diff --git a/Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h
index 38e0505cf..0374ce209 100644
--- a/Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25-RAMBo10a-E3Dv6full.h
@@ -204,8 +204,6 @@
 
 // Extruder cooling fans
 #define EXTRUDER_0_AUTO_FAN_PIN   8
-#define EXTRUDER_1_AUTO_FAN_PIN   -1
-#define EXTRUDER_2_AUTO_FAN_PIN   -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
index a646a5d85..2bb180eed 100644
--- a/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
@@ -205,8 +205,6 @@
 
 // Extruder cooling fans
 #define EXTRUDER_0_AUTO_FAN_PIN   8
-#define EXTRUDER_1_AUTO_FAN_PIN   -1
-#define EXTRUDER_2_AUTO_FAN_PIN   -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
index 19848f3d8..581546061 100644
--- a/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
@@ -204,8 +204,6 @@
 
 // Extruder cooling fans
 #define EXTRUDER_0_AUTO_FAN_PIN   8
-#define EXTRUDER_1_AUTO_FAN_PIN   -1
-#define EXTRUDER_2_AUTO_FAN_PIN   -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
index 71dac5cf7..af1fe3632 100644
--- a/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
@@ -205,8 +205,6 @@
 
 // Extruder cooling fans
 #define EXTRUDER_0_AUTO_FAN_PIN   8
-#define EXTRUDER_1_AUTO_FAN_PIN   -1
-#define EXTRUDER_2_AUTO_FAN_PIN   -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h
index 5a11c881c..fa59c5fa7 100644
--- a/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h
@@ -343,8 +343,6 @@
 
 // Extruder cooling fans
 #define EXTRUDER_0_AUTO_FAN_PIN   8
-#define EXTRUDER_1_AUTO_FAN_PIN   -1
-#define EXTRUDER_2_AUTO_FAN_PIN   -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
index 6571f72cb..c7c918fb4 100644
--- a/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
@@ -345,8 +345,6 @@
 
 // Extruder cooling fans
 #define EXTRUDER_0_AUTO_FAN_PIN   8
-#define EXTRUDER_1_AUTO_FAN_PIN   -1
-#define EXTRUDER_2_AUTO_FAN_PIN   -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 #define EXTRUDER_ALTFAN_DETECT
diff --git a/Firmware/variants/obsolete/1_75mm_MK2-RAMBo10a-E3Dv6full.h b/Firmware/variants/obsolete/1_75mm_MK2-RAMBo10a-E3Dv6full.h
index 4a3ba4011..ff091f35f 100644
--- a/Firmware/variants/obsolete/1_75mm_MK2-RAMBo10a-E3Dv6full.h
+++ b/Firmware/variants/obsolete/1_75mm_MK2-RAMBo10a-E3Dv6full.h
@@ -137,8 +137,6 @@ EXTRUDER SETTINGS
 
 // Extruder cooling fans
 #define EXTRUDER_0_AUTO_FAN_PIN   8
-#define EXTRUDER_1_AUTO_FAN_PIN   -1
-#define EXTRUDER_2_AUTO_FAN_PIN   -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed
 
diff --git a/Firmware/variants/obsolete/1_75mm_MK2-RAMBo13a-E3Dv6full.h b/Firmware/variants/obsolete/1_75mm_MK2-RAMBo13a-E3Dv6full.h
index 10e9f71c4..a02348d62 100644
--- a/Firmware/variants/obsolete/1_75mm_MK2-RAMBo13a-E3Dv6full.h
+++ b/Firmware/variants/obsolete/1_75mm_MK2-RAMBo13a-E3Dv6full.h
@@ -136,8 +136,6 @@ EXTRUDER SETTINGS
 
 // Extruder cooling fans
 #define EXTRUDER_0_AUTO_FAN_PIN   8
-#define EXTRUDER_1_AUTO_FAN_PIN   -1
-#define EXTRUDER_2_AUTO_FAN_PIN   -1
 #define EXTRUDER_AUTO_FAN_TEMPERATURE 50
 #define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed