Miele Novotronic dryer

[Jasonwhitegoods]

Hi, I have a problem with a Miele Novotronic dryer. Model T7634

It cuts out within a minute with the finish light on. Suggesting it’s completed the cycle.
It’s not even hot at that point..

I have so far checked the heater element, TOC on top of the element box and thermistor all with a multimeter. All check out ok.
also the carbon brushes on the moisture strip look fine..

With the lid removed there is no power going to the element at this stage, although I don’t know how quick the element should be powered up?

Tested with a wet/damp load.

Any help is much appreciated.

[electrofix]

there is a relay board that switches the elements so that is where i would check next

also there is another thermistor at the front

assume all air ways are clear

Dave

[Jasonwhitegoods]

Hi Dave, thank you for your suggestions.
yes all airways clear (good airflow at least from rear vent)
I will pop the relay board out tomorrow and have an inspection. I understand a faulty relay could prevent any heat, but would that lead to the dryer stopping and showing it’s finished ?

[electrofix]

“I understand a faulty relay could prevent any heat, but would that lead to the dryer stopping and showing it’s finished ?”

short answer dont know. Miele tech is hard to find so we sort of fly by the seat of out pants

there is a front toc but the dryness is sensed by the brush gear so i would double check these are making contact

there is normally a timed programme so does it heat on that ?

Dave

[Jasonwhitegoods]

electrofix wrote:“I understand a faulty relay could prevent any heat, but would that lead to the dryer stopping and showing it’s finished ?”

short answer dont know. Miele tech is hard to find so we sort of fly by the seat of out pants

there is a front toc but the dryness is sensed by the brush gear so i would double check these are making contact

there is normally a timed programme so does it heat on that ?

Dave

I see, fair enough. I will certainly double check the brushes etc, I’m not even sure there is a timed cycle on this one? I will check out the suggested components tomorrow, and check if there is indeed a timed cycle and try that.
Thank you for your help.
I will let you know how it progresses

[Jasonwhitegoods]

So, update on the dryer!!
Removed front panel, checked thermistor, wiring and connection plug. All appeared ok ( although not sure what the resistance should be. But it changed as I warmed it in my hand)

Removed pcb (top corner) all relays and solder joints looked ok.. no visible burning on the outside of the relays.

Then figured out how to set the dryer to a timed mode and all worked fine..

Filled dryer with damp towels, selected auto cycle… Guess what?? It worked

So I have no idea why it now works but it does.
Thank you Dave for your help anyway.

[electrofix]

ha ha yes been there lol

glad its working and hope it continues

Dave

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