diff --git a/Marlin/src/pins/mega/pins_CNCONTROLS_11.h b/Marlin/src/pins/mega/pins_CNCONTROLS_11.h
index 681ce65e35..3915c1cfed 100644
--- a/Marlin/src/pins/mega/pins_CNCONTROLS_11.h
+++ b/Marlin/src/pins/mega/pins_CNCONTROLS_11.h
@@ -54,7 +54,10 @@
 #define TEMP_2_PIN          2   // Analog Input.  9 for tool3 -> 2 for chambertemp
 #define TEMP_3_PIN         11   // Analog Input. 11 for tool4 -> 2 for chambertemp
 #define TEMP_BED_PIN        1   // Analog Input
-//#define TEMP_CHAMBER_PIN    2   // Analog Input
+
+#ifndef TEMP_CHAMBER_PIN
+  //#define TEMP_CHAMBER_PIN 2  // Analog Input
+#endif
 
 //
 // Heaters / Fans
diff --git a/Marlin/src/pins/mega/pins_CNCONTROLS_12.h b/Marlin/src/pins/mega/pins_CNCONTROLS_12.h
index 585c048e49..b9a96c410b 100644
--- a/Marlin/src/pins/mega/pins_CNCONTROLS_12.h
+++ b/Marlin/src/pins/mega/pins_CNCONTROLS_12.h
@@ -54,7 +54,10 @@
 #define TEMP_2_PIN         13   // Analog Input. 10 for tool3 -> 13 for chambertemp
 #define TEMP_3_PIN         11   // Analog Input. 11 for tool4 -> 13 for chambertemp
 #define TEMP_BED_PIN       14   // Analog Input
-//#define TEMP_CHAMBER_PIN   13   // Analog Input
+
+#ifndef TEMP_CHAMBER_PIN
+  //#define TEMP_CHAMBER_PIN 13 // Analog Input
+#endif
 
 //
 // Heaters / Fans
diff --git a/Marlin/src/pins/mega/pins_CNCONTROLS_15.h b/Marlin/src/pins/mega/pins_CNCONTROLS_15.h
index 6d7325996f..2fad8d576e 100644
--- a/Marlin/src/pins/mega/pins_CNCONTROLS_15.h
+++ b/Marlin/src/pins/mega/pins_CNCONTROLS_15.h
@@ -49,7 +49,10 @@
 //
 #define TEMP_0_PIN          2   // Analog Input
 #define TEMP_BED_PIN        4   // Analog Input
-#define TEMP_CHAMBER_PIN    5   // Analog Input
+
+#ifndef TEMP_CHAMBER_PIN
+  #define TEMP_CHAMBER_PIN  5   // Analog Input
+#endif
 
 //
 // Heaters
diff --git a/Marlin/src/pins/ramps/pins_RUMBA.h b/Marlin/src/pins/ramps/pins_RUMBA.h
index 2f934b3a42..a4add5d40b 100644
--- a/Marlin/src/pins/ramps/pins_RUMBA.h
+++ b/Marlin/src/pins/ramps/pins_RUMBA.h
@@ -120,7 +120,10 @@
 
 // Optional for extruder 4 or chamber:
 //#define TEMP_X_PIN         12   // Analog Input (default connector for thermistor *T3* on rumba board is used)
-//#define TEMP_CHAMBER_PIN   12   // Analog Input (default connector for thermistor *T3* on rumba board is used)
+
+#ifndef TEMP_CHAMBER_PIN
+  //#define TEMP_CHAMBER_PIN 12   // Analog Input (default connector for thermistor *T3* on rumba board is used)
+#endif
 
 #if TEMP_SENSOR_BED == -1
   #define TEMP_BED_PIN      7   // Analog Input (connector *K3* on RUMBA thermocouple ADD ON is used <-- this can't be used when TEMP_SENSOR_2 is defined as thermocouple)
diff --git a/Marlin/src/pins/stm32/pins_BLACK_STM32F407VE.h b/Marlin/src/pins/stm32/pins_BLACK_STM32F407VE.h
index 0e405608da..74a715a8d2 100644
--- a/Marlin/src/pins/stm32/pins_BLACK_STM32F407VE.h
+++ b/Marlin/src/pins/stm32/pins_BLACK_STM32F407VE.h
@@ -88,7 +88,10 @@
 #define TEMP_0_PIN         PC0  // T0
 #define TEMP_1_PIN         PC1  // T1
 #define TEMP_BED_PIN       PC2  // TB
-#define TEMP_CHAMBER_PIN   PC3  // TC
+
+#ifndef TEMP_CHAMBER_PIN
+  #define TEMP_CHAMBER_PIN PC3  // TC
+#endif
 
 //
 // Heaters / Fans