Dishwasher heater control

[electrofix]

Re: Dishwasher heater control

that’s the power supply and that’s ok so

Dave

[Martin]

Re: Dishwasher heater control

A decent photo of the whole board (solder side) would be nice 😀

[Pwcomp]

Re: Dishwasher heater control

Looks ok to me. But am starting to run out of things to check really. Thanks as always for advice.

[Martin]

Re: Dishwasher heater control

Yeah that board looks OK.

Another possibility? Partial main circulating pump blockage allowing the heater safety flow switch to operate leading to a ‘time out’ problem. Therefore check for plenty of spray pressure flow through each spray arm once it has filled. (Test that during a pre-soak cycle).

[timdowning]

Re: Dishwasher heater control

In fact run a cycle or two with the spray arms completely off

[Pwcomp]

Re: Dishwasher heater control

Thanks guys I’ll try that next. in the morning. Fed up washing by hand Now.

[Pwcomp]

Re: Dishwasher heater control

Ran the machine pressure seems fine as also ran it with no arms fitted. Still sits on the 1 point and runs for ever at that stage. Unless someone has a brainstorm of an idea. It’s either the bin or get an engineer in. Any one know of a cheap engineer in the Fareham Hampshire area? Hate being beaten by a machine. 😥

[electrofix]

Re: Dishwasher heater control

you don’t want a cheap engineer you want a good engineer to do good job at a reasonable price
try
http://www.ukwhitegoods.co.uk/search/fi … e-engineer

Dave

[Pwcomp]

Re: Dishwasher heater control

Thanks for that Dave. Not sure which way to go now bit frustrated we with it. Thanks for your reply.

Paul

[Martin]

Re: Dishwasher heater control

So just to clarify, if you set your machine to do just the Pre-soak program it still shows 1 minute at the end does it?

[Pwcomp]

Re: Dishwasher heater control

Forgot to try that. Just ran it and it does indeed stop on prewash. Only keeps running on the main programme. Hope this means something thanks again for all your help. Paul.

[Martin]

Re: Dishwasher heater control

Then the problem is clearly heat related. So, we’ve established that is does heat (i.e. Gets hot and steamy, enough to steam your glasses anyway). So it could indicated it ‘overheats’ due to a faulty thermostat OR the drain pump gets sluggish trying to empty the very hot water at the end of the final rinse.

Now, I believe you have confirmed that when it stops with 1 min showing it has in fact fully emptied. So that rules out the drain pump though, in my experience, that is the more likely component to fail rather than the thermostat. There is a third possibility in that the plug in connection to the thermostat (sits atop the heater unit) may be loose?

I hope that may help you? 😀

[Pwcomp]

Re: Dishwasher heater control

just to clarify on prewash it goes to 0 and stops, its on the full wash it keeps running and showing 1?hope that makes sense? drain pump is brand new as well/

thanks again.

[Pwcomp]

Re: Dishwasher heater control

Martin am I right in that the thermostat is called a NTC unit? Or is that some thing else. Just looking at prices. Cheers. Paul

[Martin]

Re: Dishwasher heater control

Pwcomp wrote:Martin am I right in that the thermostat is called a NTC unit?

Yes Paul it is in Bosch speak a ‘Sensor-NTC’ and the actual part number is 00165281 £21.11(incl P&P)

[Author]

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