That makes sense, thanks for explaining. I will arrange for plumber visit because the user guide lists 5 possible issues (including the ones you mention) for this alarm.
Hi mchl, Most likely cause is that the pump is running dry either because the water level in the supply tank has dropped or that the inlet filter ( if there is one ) is blocked. Check for a filter and look in the tank next time it happens. Regards S Thanks, I will go with the inlet filter hypothesi...
Our home uses a Grundfos pump to compensate for the lack of pressure from the water main. In the last few months, the pump’s alarm light has regularly turned on, which requires us to manually stop and start the pump to get water through again. It seems to happen more often in the evening. Of note is...
