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Techdesk
Techdesk, Service Engineer
Category: Appliance
Satisfied Customers: 16409
Experience:  Whitegoods engineer working for a multibranded national company in the UK
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Our whirlpool ADG 7640 dishwasher is failing to complete the

Customer Question

Our whirlpool ADG 7640 dishwasher is failing to complete the cycle. It stops part way through (before any hot water has been introduced) and makes a continuous bleeping sound. When opened the rinse light is flashing and although the tablet has been released it hasn't dissolved so no soap has been used. Any advice would be appreciated, thank you.
Submitted: 3 years ago.
Category: Appliance
Expert:  Techdesk replied 3 years ago.
Hiya,
When it fails, is the start light flashing?

Normally the rinse light should light and the start light flash.

If it is, count the number of flashes and let me know how many.

Thanks
Customer: replied 3 years ago.

Hi,


 


Thank you. We put the dishwasher on the 40 degree programme and empty to test what happened following your suggestion.


 


All seemed to be working fine until it suddenly failed after 27 mins. When I opened it the rinse light was solid green and the start light was flashing green 3 times then repeating.


 


kind regards


Paul

Expert:  Techdesk replied 3 years ago.
Hiya,
3 flashes indicates a fault in the heating circuit.

Either the heater, wiring or main control board are to blame.

You need to have, and be able to use, a multimeter to narrow this down.

Test the wiring and heater from the control board in the door.

Unplug the appliance.
Take the décor door off (if integrated).
Take the facia panel off.
Take the plug marked EWH (or EHW) out and test across it for continuity.

If ok, you need a new control board.
If open circuit, you now need to access the heater at the bottom and test it.

If it's ok, you have broken wiring in the door that needs repairing.
If it's open circuit, you need to replace the heater.

Check it out, see what you find and get back to me if you need more help.

Obviously, if you cannot do the work yourself, you'll need to get someone in to do it for you.

Hope this helps
Thanks
Customer: replied 3 years ago.

thank you, I'm not capable to doing this myself so we shall seek further advice on whether it's likely to be cost effective to repair or whether it makes more sense to replace the dishwasher. kind regards Paul

Expert:  Techdesk replied 3 years ago.
Hiya
The most economical repair for this would be a fixed price repair from British Gas or Knowhow (Currys), if they cover your area.

Around £125 inclusive of parts and labour.
Check their respective websites for full details.

I know British Gas have no charge if it cannot be repaired.

Hope this helps
Thanks