Index: firmware/App/Controllers/DrainPump.c
===================================================================
diff -u -rccf1219089b835ab2f9d401c0be0d2000be9010a -rbbd5ac2589c8093f681f2284367975ddd220b553
--- firmware/App/Controllers/DrainPump.c	(.../DrainPump.c)	(revision ccf1219089b835ab2f9d401c0be0d2000be9010a)
+++ firmware/App/Controllers/DrainPump.c	(.../DrainPump.c)	(revision bbd5ac2589c8093f681f2284367975ddd220b553)
@@ -252,10 +252,11 @@
     // Convert speed ADC to RPM
     currentDrainPumpRPM = CONVERSION_COEFF / getFPGADrainPumpSpeed();
 
+    // TODO this is disabled until RPM is calculated propely.
     // The RPM is only checked in open loop state that the pump is run at a fixed RPM.
     // The persistent alarm waits for a couple of seconds before raising an alarm, this is supposed to cover
     // when the pump is turned on and it takes a while to ramp up to target RPM.
-    if( drainPumpControlModeSet == PUMP_CONTROL_MODE_OPEN_LOOP )
+    /*if( drainPumpControlModeSet == PUMP_CONTROL_MODE_OPEN_LOOP )
     {
         U32 targetRPM = getTargetDrainPumpRPM();
         F32 threshold = OPEN_LOOP_RPM_OUT_OF_RANGE * targetRPM;
@@ -278,7 +279,7 @@
         {
             activateSafetyShutdown();
         }
-    }
+    }*/
 
     // Publish drain pump data on interval
     publishDrainPumpData();