Miele w3922 no heat on wash

[Simon46]

Heater ok thermistor reading 16k in cool unheated room. I assume pcb but is there a component level fix? Door wont unlock when cycle finished unless powered down and back up again.
Regards Simon

[Seamy]

Re: Miele w3922 no heat on wash

Mostly there were problems with heater relays on Miele’s, not sure of this particular model, but relays were normally separate to main board.

[Simon46]

Re: Miele w3922 no heat on wash

Eck Schrack 12v double pole relay for 75 quid!

[Seamy]

Re: Miele w3922 no heat on wash

You will find one a lot cheaper than that if you search, maybe Farnell or RS, make sure its the same rating or more.

[Simon46]

Re: Miele w3922 no heat on wash

Have searched schrack relay. Cant see one at rs. No joy. Ebay i am using for working relay for diagnosis purposes. If successful then will purchase new at customers decision.

[Seamy]

Re: Miele w3922 no heat on wash

If you do a search on here, I could have swore i’ve seen this issue arise before & someone had sourced a suitable industrial relay that did the job at a decent price.
Relay needs to be double pole as far as i’m aware as machine does self diagnosis at start of cycle & needs to prove circuit of heater.

[Simon46]

Re: Miele w3922 no heat on wash

Well replaced relay with known good one. Only get 12v from pcb to relay for 1/2 a second when motor stops and changes direction. Oh well.
Simon

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