Water leak. Dishwasher tripping RCD

bob786 · Post by **bob786** » Sat Feb 08, 2025 2:16 pm

Hi

We had a water leak under sink where dishwasher plug socket is. I fixed the leak but every time I plug the dishwasher in it trips the RCD. But there is no power to the dishwasher. I’ve aerated the cupboard and dried the socket. The socket powers other appliances fine without tripping.

Is the dishwasher fried or can I try anything else to get it working? Trying to get hold of a fuse for the dishwasher plug but not sure that should make a difference? I’ve only had it a year so replacing it will be painful.

Thanks for your time.

Someone-Else · Post by **Someone-Else** » Sat Feb 08, 2025 2:58 pm

If the DW trips the RCD, it is probably the DW that has the problem. You could try and leave the DW open to dry out, This leak, did it get into the DW around the back? if it did it may have corroded something.
Was it a cheap DW? wondering if it is worth getting an appliance engineer out to look?

bob786 · Post by **bob786** » Sat Feb 08, 2025 4:17 pm

The leak wasn’t directly behind the DW but it’s possible water could have splashed on it?

I’ll maybe pull it out and have a look.I'm just wondering how long I should wait for it to dry before calling someone out. Or whether it’s worth calling someone at all if it’s probably fried?

Someone-Else · Post by **Someone-Else** » Sat Feb 08, 2025 6:58 pm

Your call.
You have not said how much the DW cost you,
Depends how much a call out is
What really happened with this "splash" (You don't have to lie to me, I am not there, and I am only trying to help YOU)

Neelix · Post by **Neelix** » Sat Feb 08, 2025 7:26 pm

As a 1 off test try the dishwasher with an extension lead from a different socket circuit

dewaltdisney · Post by **dewaltdisney** » Sat Feb 08, 2025 9:46 pm

I know very little about electronics but I do know that the control boards are very fragile and I would suspect that the short probably blew the main board in the DW. I think that Neelix's suggestion to try different socket would prove the point. Boards are around £50 to £80 so check your make and decide if that is a way to go. But, as I said, I don't know enough to give proper guidance, I hope you get it sorted.

DWD

Peter Johnson · Post by **Peter Johnson** » Sat Feb 08, 2025 10:07 pm

It sounds frustrating, especially since it's only a year old. Let's see if we can figure out what's going on.

See if the fuse in the plug is blown and replace it if needed. Look for any damage to the plug or dishwasher wiring. Try plugging the dishwasher into a different socket. Make sure everything is completely dry. Check the dishwasher's manual for any reset instructions. Since it's under warranty, contacting customer support might be the best option. If these don't help, consider getting a professional electrician to inspect it.

Someone-Else · Post by **Someone-Else** » Sat Feb 08, 2025 10:12 pm

An electrician is no use with a dishwasher. As I suggested it needs an appliance engineer
It has already been suggested to try a different socket
Leaving it to dry out has already been suggested
Who said the dishwasher is under warrantee?

bob786 · Post by **bob786** » Sat Feb 08, 2025 11:49 pm

As mentioned there was a leak from one of the sink pipes. The plug and socket which are next to the pipes were wet but the body of the DW is dry. I.e it seems like water only got on the plug rather than any other component or wiring. I’ve tried another device on the socket and that works fine.

It’s a Bosch. £500. Out of warranty (and pretty sure water damage not covered)

Tried on a different circuit with an extension. It trips the RCD every time so can’t get it to power on. Can’t think of any other way to ‘force’ it to power on to check if it is working. By no means an expert but I’m sure the RCD trips for a reason.

So I’m thinking the socket is fine. But it must have gone on the plug and fried it inside?

I think perhaps an appliance engineer is required. Can’t think of anything else I can try.

Someone-Else · Post by **Someone-Else** » Sun Feb 09, 2025 12:24 am

You could cut the plug off and fit a new plug. You do seem to have proven its the DW. As for fried, doubtful, but if water got inside (an appliance engineer can confirm by taking it apart) may beat £500 I would get an appliance bod to look, but its your call.

OnlyMe · Post by **OnlyMe** » Sun Feb 09, 2025 8:10 am

Someone-Else wrote: ↑Sun Feb 09, 2025 12:24 am You could cut the plug off and fit a new plug.

That would be the first thing to do.

dewaltdisney · Post by **dewaltdisney** » Sun Feb 09, 2025 9:00 am

This might help https://www.bosch-home.co.uk/customer-s ... dishwasher

DWD

bob786 · Post by **bob786** » Sun Feb 16, 2025 7:49 pm

Hi all. Thanks for the advice.

Bosch came. It was the power cord. Looks like the water must have blown it. Replaced and now working fine.

dewaltdisney · Post by **dewaltdisney** » Sun Feb 16, 2025 8:00 pm

Good, I am glad you got it fixed, thanks for the update.

DWD