Hi, I've been "having a go" at one of the above noted dishwashers at the inlaws, which is some distance away.
A couple of months ago the anti-flood device was preventing water from entering the machine, so I sucked/blew down the pipe to reset it, checked that there were no obvious blockages, reassembled the machine and it tested ok.
Last week it showed the same fault again, so I stripped it down, removed the water fill/softener complete and checked carefully for any problems. I also checked all of the pipes/ports leading into the machine, no problems to be found anywhere. I stripped down the anti- flood valve, it appears that it ought to auto reset, also that this particular specimen may jam in the closed position. I advised that the valve may be the fault, and may need replacement.
I had just sat down in the chair, having arrived home, when a 'phone call advised that the fault had recurred.
Does anyone happen to know if this valve cycles by design whilst the dishwasher is filling, to maintain a safe "head" of water in the machine, or if it only activates in the event of a fault condition?
The valve may be viewed at: