LG True Steam 9KG Dryer Ref RC9042AQ3Z Fault code tE4

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Hi Guys I have searched the internet and only got scant details about the fault I have with my dryer, it switches on OK and does the usual stuff but about 10-15 seconds into a cycle it displays the fault code tE4 and stops. I believed this is a fault with the thermistor for the steam generator, as it is the only thing I have found on the web, but have put a meter on it and it shows a resistance of about 85Kohms reducing as it gets warmer so I think it is fine, checked the resistance at the motherboard on the side of the machine, this was the same and re-seated the connection which made no difference.

Any other ideas would be gratefully received.

Thanks

[electrofix]

I get high temp thermistor problem which i dont think is the steam generator

https://www.ukwhitegoods.co.uk/help/fault-codes/tumble-dryer-fault-codes/3715-lg-tumble-dryer-fault-codes

Dave

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Thanks for that Dave, another part of my problem is finding an exploded drawing of this model to help locate the parts that need checking/replacing, I have spoken LG and they don’t even have a copy, they referred me to a third party website with an image of a similar unit but not the same! I will try and find where the high temp thermistor is unless you can help with that at all.

Cheers

Dave

[electrofix]

well at a guess, since the highest temps are likley to be above the heater, i would look there first

Dave

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OK so have tested the high temp thermistor and this is working OK, can’t trace it back to the main PCB as it disappears into the loom and I can’t tell which wires correspond to the thermistor at that end so a bit lost now, could the tE4 code refer something else? I believe there is another thermistor for the EVA in but cant find that one?

[electrofix]

what an EVA ?

there may be an exhaust thermistor at the front

Dave

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I do not know what the Eva is it shown on the similar machines service manual but it omits to tell me where it is or what it is? I think it may be the evaporator in side, but still don’t know where this is.

I’ll see if I can find it on the front. If not I may have to get an engineer in as I have gone as far as I think I can.

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