Index: firmware/App/Controllers/DrainPump.c
===================================================================
diff -u -r5cee5f88d4d3f18b4178621f1ef175b0873d6248 -rab447ebbc380f4c7abc2ae283042a5d0c9e1b9cb
--- firmware/App/Controllers/DrainPump.c	(.../DrainPump.c)	(revision 5cee5f88d4d3f18b4178621f1ef175b0873d6248)
+++ firmware/App/Controllers/DrainPump.c	(.../DrainPump.c)	(revision ab447ebbc380f4c7abc2ae283042a5d0c9e1b9cb)
@@ -263,10 +263,11 @@
         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;
@@ -289,7 +290,7 @@
         {
             activateSafetyShutdown();
         }
-    }
+    }*/
 
     // Publish drain pump data on interval
     publishDrainPumpData();