Index: firmware/App/Modes/ModeHeatDisinfect.c
===================================================================
diff -u -r5315092604c1a6f4ec8ba1339809bd0099f921da -rbec5bb7634100c96341d19cf89e540a01aa86b1d
--- firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 5315092604c1a6f4ec8ba1339809bd0099f921da)
+++ firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision bec5bb7634100c96341d19cf89e540a01aa86b1d)
@@ -1700,7 +1700,7 @@
 
     // NOTE: the drain status should be checked once the reservoirs parameters are initialized. This is to make sure the
     // the timers for stable drain time are initialized prior to using them again
-    isDrainComplete = hasTargetDrainVolumeBeenReached( r, drainSteadyStateTimeout );
+    isDrainComplete = hasTargetDrainToZeroBeenReached( r, drainSteadyStateTimeout );
 
     if ( TRUE == isDrainComplete )
     {