Index: firmware/App/Modes/ModeHeatDisinfectActiveCool.c
===================================================================
diff -u -r52f076a439f5a20cd0fe1659ee5d95f5324fe856 -r213c09d4f8c37e562611df2539f73ffaea022f83
--- firmware/App/Modes/ModeHeatDisinfectActiveCool.c	(.../ModeHeatDisinfectActiveCool.c)	(revision 52f076a439f5a20cd0fe1659ee5d95f5324fe856)
+++ firmware/App/Modes/ModeHeatDisinfectActiveCool.c	(.../ModeHeatDisinfectActiveCool.c)	(revision 213c09d4f8c37e562611df2539f73ffaea022f83)
@@ -627,6 +627,7 @@
         // The drain is set to start from reservoir 2 since all the actuators have been de-energized
         // Set the drain valve to reservoir 2
         setValveState( VRD2, VALVE_STATE_OPEN );
+        setValveState( VPO, VALVE_STATE_FILL_C_TO_NC );
         setDrainPumpTargetRPM( targetRPM );
 
         // Start the timer for drain timeout