Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -r1e62db4e4c11657a30823872d3a523814c9c7419 -r0a0edffd2c4f58943a0f7bfe7e629783a71bb3aa
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 1e62db4e4c11657a30823872d3a523814c9c7419)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 0a0edffd2c4f58943a0f7bfe7e629783a71bb3aa)
@@ -8,7 +8,7 @@
 * @file    ConcentratePumps.c
 *
 * @author  (last)      Dara Navaei
-* @date    (last)      09-Aug-2023
+* @date    (last)      11-Aug-2023
 *
 * @author  (original)  Quang Nguyen
 * @date    (original)  22-Oct-2020
@@ -907,7 +907,7 @@
 static void monitorPumpSpeed( CONCENTRATE_PUMPS_T pumpId, ALARM_ID_T alarm )
 {
     F32 cpTargetSpeed = concentratePumps[ pumpId ].currentPumpSpeed;
-    F32 cpError       = fabs( getMeasuredPumpSpeedMLPM( pumpId ) - cpTargetSpeed );
+    F32 cpError       = fabs( fabs( getMeasuredPumpSpeedMLPM( pumpId ) ) - cpTargetSpeed );
     BOOL isCpSpeedOut = FALSE;
     F32 tolerance     = CONCENTRATE_PUMP_SPD_OUT_OF_RANGE_TOL_WHEN_SLOW_MLPM;