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hi guys went to repair hotpoint dishwasher dwf 50s stopped full of water . removed the water switched on dishwasher selected wash nothing could here a faint hum.
thought pump jammed removed pump ok. tested ok checked washer pump ok. soliade tested capactor seemed ok tryed another one checked switches on the sump. retryed dishwasher selected program pump started up then started to fill and wash.
question would a faulty or weak capactor stop the program from starting thanks fasetester 🙂
Re: hotpoint dwf 50s
Long time no type you Fase (I’ve been on my hols…I hope they’ve helped you out whilst I’ve been away?)
Anyway, the circulation pumps on these do have capacitor failures (pretty common) But they also do seize up often and if there is a hint of a leak on the pump chamber/shaft seal then chances are a stripdown is in order! Could be some crud stuck in the impellor?
HTH matey? 😀
Re: hotpoint dwf 50s
hope you had a good holiday martin. turned the washer pump from the back seemed to turn ok. if the washer pump leaks on this dishwasher can the seals be changed. there is some white scum and rust on the bottom plate when run could see no leaks the only thing was the waste is not right it is not pushed on to a proper outlet it is just sitting in to the mouth of the sink waste under the sink.
i changed the capactor and then it went. can the capactor being faulty stop the program from starting the drain pump running at the start and filling i know it can stop the washer pump from starting.
or it should have no part to play at the start of the program and only stop the washer pump from working thanks fasetester 🙂
Re: hotpoint dwf 50s
fasetester wrote:i changed the capactor and then it went. can the capactor being faulty stop the program from starting the drain pump running at the start and filling i know it can stop the washer pump from starting.
No! The drain pump runs on switch on, followed by filling and then the wash pump kicks in. The capacitor only controls the wash pump.
You mentioned white scum & rust on the base? I guess that’s directly under the circulating pump housing is it? In which case a new Pump Housing will be required and don’t forget to put a drop of oil in the motor bearings on re-assembly. That should sort it. 😉
Re: hotpoint dwf 50s
thanks martin for your reply. the problum was when switched on and select a program did nothing. would a blockage in the pipe work cause the pump not to run at the beginning of the program as the parts i checked tested ok and then when i started a program it went ok
the thing is i would like to know what caused the problum in the first place and know that the problum is fixed the switch in the sump if that was blocked up would that have caused the problum thanks fasetester. 😕
Re: hotpoint dwf 50s
Not sure which “pump” you refer to here Fase? 😕
As I mentioned before, the drain pump kicks in first at the start of any programme. After 60 secs or so it stops and fills, once the water level pressure switch cuts off then the circulating pump starts.
Most common failure = drain pump blockage on switch on.
HTH? 🙂
Re: hotpoint dwf 50s
the drain pump martin. i know the main cause of the pump not running is something blocking it. when i removed it and checked it was ok if their was crud blocking the main tranfare pipes would it stop the drain pump from running. at the start of the program i know it would stop the filling or would the pump still run but not fill thanks fasetester 🙂
Re: hotpoint dwf 50s
OK well you should have 240v to the drain pump on start-up? If not then the PCB is the likely suspect I would guess? No “crud blocking transfer pipes” would cause the drain pump not to work either.
On the filling side, this beast has a ‘flowmeter’ in line and if it doesn’t fill and the inlet valve is OK, chances are the flowmeter is the culprit?
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