Index: firmware/App/Controllers/DrainPump.c
===================================================================
diff -u -r30f7327c58c36728f1b6de0a44dfd57d00c62b2b -r13e402144c2b3d4a20f9b5e820edebc9d538df6b
--- firmware/App/Controllers/DrainPump.c	(.../DrainPump.c)	(revision 30f7327c58c36728f1b6de0a44dfd57d00c62b2b)
+++ firmware/App/Controllers/DrainPump.c	(.../DrainPump.c)	(revision 13e402144c2b3d4a20f9b5e820edebc9d538df6b)
@@ -414,7 +414,7 @@
             {
                 U32 direction     = getDrainPumpMeasuredDirection();
                 U32 rpmMaxon      = getDrainPumpMeasuredRPM( DRAIN_PUMP_MAXON_SNSR_FB );
-                BOOL isDirInvalid = ( ( direction != DRAIN_PUMP_FORWARD_DIR ) && ( rpmMaxon > 0 ) ? TRUE : FALSE );
+                BOOL isDirInvalid = ( ( direction != DRAIN_PUMP_FORWARD_DIR ) && ( rpmMaxon > DRAIN_PUMP_MIN_RPM_FOR_DIR_CHECK ) ? TRUE : FALSE );
 
                 checkPersistentAlarm( ALARM_ID_DG_DRAIN_PUMP_DIRECTION_INVALID, isDirInvalid, (F32)direction, DRAIN_PUMP_FORWARD_DIR );
             }