Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -r5648a6df6addfa88500bb77be96b84bb7b6f9d78 -r11d4c395ab17920ec910118b7931e67f3bd52154
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 5648a6df6addfa88500bb77be96b84bb7b6f9d78)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 11d4c395ab17920ec910118b7931e67f3bd52154)
@@ -1021,6 +1021,17 @@
 
     isCpSpeedOut = ( cpError > tolerance ? TRUE : FALSE );
 
+    // Check for measured speed and target speed direction after checking the tolerance. Even if the absolute values are in range the direction
+    // of target and measured speed should be matching
+    if ( ( concentratePumps[ pumpId ].currentPumpSpeed > 0.0F ) && ( getMeasuredPumpSpeedMLPM( pumpId ) < 0.0F ) )
+    {
+        isCpSpeedOut = TRUE;
+    }
+    else if ( ( concentratePumps[ pumpId ].currentPumpSpeed < 0.0F ) && ( getMeasuredPumpSpeedMLPM( pumpId ) > 0.0F ) )
+    {
+        isCpSpeedOut = TRUE;
+    }
+
     checkPersistentAlarm( alarm, isCpSpeedOut, cpError, tolerance );
 }