Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -r93774c1a907fb9ce8e5c784e77ed3483c04a525b -re6fef0f312d07e308c88caafef7e952689328248
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 93774c1a907fb9ce8e5c784e77ed3483c04a525b)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision e6fef0f312d07e308c88caafef7e952689328248)
@@ -1402,6 +1402,7 @@
 BOOL testConcentratePumpStartStopOverride( MESSAGE_T *message )
 {
     BOOL result = FALSE;
+    BOOL speedRangeCheck = FALSE;
 
     // Verify tester has logged in with DD
     if ( TRUE == isTestingActivated() )
@@ -1415,10 +1416,10 @@
 
             if ( (CONCENTRATE_PUMPS_T)payload.pumpID < NUM_OF_CONCENTRATE_PUMPS )
             {
+                speedRangeCheck = ( payload.speed >= CONCENTRATE_PUMP_MIN_SPEED ) && ( payload.speed <= CONCENTRATE_PUMP_MAX_SPEED );
+
                 // Handle start command
-                if ( ( TRUE == payload.startStop ) &&
-                      ( ( payload.speed >= CONCENTRATE_PUMP_MIN_SPEED ) && ( payload.speed <= CONCENTRATE_PUMP_MAX_SPEED ) ) &&
-                      ( payload.volume > 0.0 ) )
+                if ( ( TRUE == payload.startStop ) && ( TRUE == speedRangeCheck ) && ( payload.volume > 0.0 ) )
                 {
                     setConcentratePumpTargetSpeed( (CONCENTRATE_PUMPS_T)payload.pumpID, payload.speed, payload.volume );
                     requestConcentratePumpOn ( (CONCENTRATE_PUMPS_T)payload.pumpID );