[aidanhd]

Ok so I’ve taken the board out and straight away spotted soot on the inside of the plastic cover. The board itself has a couple of burnt out diodes & resistors. It looks like the smaller of the two perpendicularly mounted boards/cards, some kind of power supply board I assume, has the most damage.

If I were to replace these components, how likely do you think it is that it will solve the problem? I’m assuming something else must be wrong to have caused them to burn out in the first place

Thanks

[aidanhd]

Ah right, is that something worth doing do you think? Do you know what that’s likely to cost?

I suppose an option may be to salvage the temperature sensor from a second hand board and swap it over, keeping fingers crossed that the ‘new’ one is ok!

Thanks

[aidanhd]

I see, I suppose my best option may be to source a second hand control board. I have seen them for sale on eBay and they seem to include the temperature sensor.

Ah ok thanks, yes I will check the relays later. I must admit I assumed they used triacs or some other solid state switching device, but I guess these can also fail. I haven’t had the board out fully to have a proper look.

The noise sounded more like an electrical noise, like a typical 50Hz hum/buzz, as if the motor had stalled or something had shorted out. When I replaced the heater, there were no blockages or anything to suggest this being the case and it seemed to spin freely. Also the flashing light sequence suggests a heating issue as far as I can tell, rather than a motor fault.

Thanks for the help so far, I will report back later when I’ve checked the relays 🙂

[aidanhd]

That’s strange, I don’t recall seeing any excess foam. Also, I’ve replaced the heater but the fault remains, suggesting something else is to blame.

Is it worth trying to replace the temperature sensor? I know it’s hard wired to the board but I’m quite capable of soldering a new one in if I know where to get one

[aidanhd]

One thing I forgot to mention is that during the last full cycle the machine completed, it did make a series of loud buzzing/humming noises, which in my mind, also suggested the heating element (or some other higher powered component) to have failed

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