Chamber Heater PID (#21156)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/src/inc/SanityCheck.h

@@ -1203,6 +1203,13 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
   #error "To use BED_LIMIT_SWITCHING you must disable PIDTEMPBED."
 #endif
 
+/**
+ * Chamber Heating Options - PID vs Limit Switching
+ */
+#if BOTH(PIDTEMPCHAMBER, CHAMBER_LIMIT_SWITCHING)
+  #error "To use CHAMBER_LIMIT_SWITCHING you must disable PIDTEMPCHAMBER."
+#endif
+
 /**
  * Kinematics
  */