Whale Submersible Pump Running Continously.
1994 Bailey Pageant CD Auvergne. Whale water system with hot water tank. Submersible external pump.
I'm returning to caravanning after a 20 year gap. We acquired the '94 Bailey last year. Our previous Musketeer had a very basic water system and didn't have hot water. I filled the water system a few times last year without any problems. So far as I am
aware it is a pressure controlled system which I believe does not have any micro switches on taps.
I drained the water system for the winter as per the manual, including the hot water tank.
Brought 'van to house from storage yesterday to deep clean it. I filled the water system last night with a sterilising solution. (a powder which had to be dissolved in warm water) without any problems and left it overnight.
I drained that out this morning to flush through with clean water but the system will not fill. When the pump 12volt supply is switched on at the control panel the pump starts up sounding normal for a few seconds but then the sound changes and it runs continously
but no air or water from the taps. Close taps and pump continues to run but water level in container does not reduce so I presume that it is not actually pumping any water. I did try opening the hot water tank drain again to see if anything was going into
the tank but only about 500 mls of water came out. That would seem to indicate that it is pumping water for a moment upon start up then does not pump.
I've trawled around for info.and found two possibilities, or are they two versions of the same thing.
1) Remove the diaphragm from the pump connection in the caravan side, from outside but careful about the spring, or
2) Remove the pressure switch from the inside of the pump connection,
as they may be "gummed" up.
I suspect that some of the sterilising powder I used has not fully dissolved and is interfering with something.
Is the diaphragm at 1 above part of the pressure switch or are they two seperate entities and need to be dealt with seperately?