Indesit WD11/12 modules

[iadom]

Indesit WD11UK. Complaint cold water will not stop filling unless you switch off. Set to Spin, turned on, nothing other than cold fill, no clicking or flashes.
On the few occasions I have encountered this fault it has always been the module and this one was no different. On all the others that I have seen the module showed obvious signs of damage, blown components, badly burned tracks etc.

This machine is under 2 years old, light use, kitchen is warm and dry. There is no sign of physical damage anywhere on the module.

I just happened to have a module that I salvaged from a 15 month old WD12UK last week, it needed a new outer drum due to a small coin slicing open the bacofoil drum. 😥

Using it to test confirmed the displaced module as faulty.

The only differences I can see using Partfinder on these two machines is the eeprom, all other components, p/switch, timer etc appear to be the same.

Would this module be OK to use in this machine, I ran it through all functions and it seemed work perfectly. ❓

[Martin]

Re: Indesit WD11/12 modules

Have a word with Tony and his colleagues at EMW 😉

[andy2]

Re: Indesit WD11/12 modules

Jim

Sounds like a short circuit triac that drives one of the solonoid valves. If you find out which valve it is letting water in this might help:

Edge connector CNE

1 Solonoid valves common
2 Cold valve
3 Door lock light
4 Hot valve
5 Fab con valve

Trace the track back from the edge connector to find the relevant triac. They look like small transistor packages and are about 1 A i think. The common device is a MAC 97A8. A short across two of the pins is usually easy enough to spot.

The only thing that makes me doubt this, is that the pump and motor are not working on spin and i cannot think why they should not be with this fault as as far as i know there is no feedback to the controller to signal this condition (but there might be!) It might be worth changing the triac anyway its only a quick job if you can get one from an old module.

Failing that why not use the other module if its working OK. You might have just got two models with eeproms holding the same data. Tony at EMW could confirm this.

Andy 😀

[iadom]

Re: Indesit WD11/12 modules

Thanks Andy. As the machine appeared to run perfectly, I left the module in and asked the customer to run it for a few days before I invoiced her.

Will report back either way.

Even under a magnifying glass the displaced module looks perfect on both sides.

Jim.

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