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Can anyone help with this please?
We have an inherited Whirlpool ADG 7540 dishwasher.
It beeps, the start button flashes and it stops about three-quarters through any hot (50C or greater) cycle, although it usually completes any
40C low temp half hour wash.When it begins to beep the rinse programme light becomes illuminated.
I have checked the filter unit as the handbook suggests and this is completely clear.
Is this possibly a thermistor problem?
If so, is there an easy test I can do to establish if the thermistor is knacked?Many thanks in advance,
Inzy
Re: Whirlpool ADG 7540 not completing wash cycle
Start lamp should flash in a pattern if there is a fault.
Penguin45.
Re: Whirlpool ADG 7540 not completing wash cycle
The start lamp blinks on and off, there is an an audible intermittent beep while the programme resets iteself to a rinse cycle.
Re: Whirlpool ADG 7540 not completing wash cycle
Steady flashing is the NTC or thermistor – fault. A resistance test should give a reading in kOhms – even if it does, the device is still frequntly faulty.
Power off if doing this yourself.
Penguin45.
Re: Whirlpool ADG 7540 not completing wash cycle
You’re a top man Pengy,
I’ll check it out this evening….Many thanks for the advice,
Inzy
Re: Whirlpool ADG 7540 not completing wash cycle
dont think its the temp probe
check drainhose if possioned high enough
drains freely
if probe usely cuts out after 10 minutes
( still possibly that it happens after much longer then that )
but then i think u got a lot of foam inside ( mis reading )and i would check pressureswitch ( membraamswitch )
just a thought
😀
Re: Whirlpool ADG 7540 not completing wash cycle
The resistance reading on the thermistor is 68 kOhms.
Bit high possibly?
I assume when you said KOhms Pengy you meant 1-10, not as high as 68?Re drain hoses, the DW workied fine until four weeks ago and seems to drain freely. I made sure there were no blockages….
but thanks Cookerman.
Cheers,Inzy
Re: Whirlpool ADG 7540 not completing wash cycle
Yup, reading’s a bit off – you should expect c.45kOhms at room temperature.
However – it’s a fickle little beastie. I carry these on the van, so substitution is an easy test – I’m afraid you’d have to buy one in order to find out for sure. This is what you need:
http://shop.ukwhitegoods.co.uk/product_ … cts_id=476Regards,
Penguin45.Re: Whirlpool ADG 7540 not completing wash cycle
Hi Pengy,
I tried replacing the NTC, but the this doesn’t seem to make a lot of difference. Unless the replacement part I ordered is faulty, (measures about 40 kOhm) I am now further on.
With the old component the wash seemed to get 3/4 to completion, but since replacement the wash shuts down after about 20 mins to 1/2 hour.
I’ve tried putting the original part back in, but it hasn’t returned to the original 3/4 completion …… but the latter ….Any additional clues here….?
Thanks again,Inzy
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