Beko DW – DIN26x20 – control module

[twicknix]

This dishwasher is just over two years old,, it was shorting the electrics. Checked heater, mains filter apart from the motor but from what I can see that the motor is not earthed same way as the drain pump which I discounted the reason to be the source of shorting.

Traced it to the control module, I’m a little confused on why it was shorting the electrics. Couldn’t find blown tracks or component on the module. The wiring appears to be decent. No evidence of pest infestation.

The dishwasher in question is relatively new and the owner has no paperworks for it as she recently bought the house without the paperwork on the dishwasher. I have not been able to source a replacement module. Can you help or suggest something that I may have missed? Many thanks Matt

[electrofix]

Re: Beko DW – DIN26x20 – control module

when you say shorting the electrics what do you mean Trips RCD ?

Dave

[twicknix]

Re: Beko DW – DIN26x20 – control module

yes and it returned on insulation tester as zero, isolated every components that come into contact with earth and still come back as zero.

Went to the board, unplugged each connecter and refit one by one, got some decent reading until I plugged the longest connecter and it went zero. Along those connector, each terminal were returning a reading of 1 until I reached to the brown lead terminal which I traced it right to live. Clearly it looks like something must have crossed over somewhere?

[twicknix]

Re: Beko DW – DIN26x20 – control module

Any pointers on the above yet? Customer is asking how are things….

[electrofix]

Re: Beko DW – DIN26x20 – control module

I cant see it being the board. as far as I know the board has no earth connection

have sent you wiring diagrams that may help

I unplug everything off the board apart from live in and see what happens

don’t forget you can have a neutral short which will still trip rcd

its got to be an earth fault somewhere and you will kick yourself when you get it

Dave

[Lawrence]

Re: Beko DW – DIN26x20 – control module

Matt check the door wires , you may have a break that is sitting on the chassis remove the door skin and strip back the loom sleeve at the bottom , as Dave says the PCB doesn’t have an earth.

[twicknix]

Re: Beko DW – DIN26x20 – control module

Thanks guys, will have a look on the dishwasher. I am aware that there is an earth fault somewhere. I suspect that it would be very obvious. The door wires has crossed my mind, I did have a look at it then and not found anything obvious (yet). I guess a second visit will give me a fresh look and see what it could be.

Although it does appears to be the board, which was why I am asking for advice as I know that there’s nothing wrong with the board itself which left me puzzled. Now I’m armed with the knowledge and shall conquer it.

[Simon46]

Re: Beko DW – DIN26x20 – control module

Ive had one of these which a previous engineer had taped up the wiring loom. Passed insulation test but when washing then failed. Pump heater ok. Condensation was getting into wiring and there were stains from the soap dispenser down the inside of the door. Cust decided to replace it so never got to the bottom of it.

[twicknix]

Re: Beko DW – DIN26x20 – control module

Simon46 wrote: Cust decided to replace it so never got to the bottom of it.

That’s often the case with these kind of dishwasher due to it relatively low purchase price. It’s worrying that it’s only 18 months old and the paperwork is lost due to house purchases. They moved in and the dishwasher is already there. They have no money for a new one so it’s likely it will be a repair option.

[Simon46]

Re: Beko DW – DIN26x20 – control module

I did inspect loom covered in duct tape. Maybe it had a nick in a wire then it got wet?

[Hollytree_Technical]

Re: Beko DW – DIN26x20 – control module

I have just got back from a similar machine with a similar issue which turned out to be the floor indicator light had cracked and had got some damp in it.

Jem

[Simon46]

Re: Beko DW – DIN26x20 – control module

Wow.

[twicknix]

Re: Beko DW – DIN26x20 – control module

Hollytree_Technical wrote:I have just got back from a similar machine with a similar issue which turned out to be the floor indicator light had cracked and had got some damp in it.

Jem

Ditto in my case and to replace it is to order the whole blooming wiring loom and use that particular loom for the floor indicator light. I’ve passed the full cost to the customer. They were relived that they don’t need to order a new dishwasher. Now I am waiting on the back order of the loom…week ending 14th April…. good job I have an extremely patience customer…

[Author]

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