Earth Trip Fault – Servis 1000 Automatic

[mrfilly]

Not sure of a model number, I have looked everywhere (except underneath) for some sort of data label/serial number identification – downfalls of buying at the low end of the market I guess. However I do know that a DMPU module ref. 546021401 is fitted, along with a 512011600 motor.

Sympton:
At certain stages in several cycles the main Earth Trip trips. After trying to narrow exactly when it trips, it appears to do everything except a high speed spin. i.e. water in, slow spin, pump out is OK.

Question:
How can I conclusivley work out whether it is the module at fault or the motor? I have watched a cycle virtually all the way through with the motor disconnected (from the DMPU) without any tripping. However using a std fluke multimeter I cannot find an earth fault on the motor itself.

Many Thanks

P.S. I am an electronic/electrical design eng. so this should be easy, I’m just not 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} certain of the motor configuration/connections.

[Penguin45]

Re: Earth Trip Fault – Servis 1000 Automatic

I would suggest meggering the motor for earth leakage as your first port of call.

For the benefit of future readers, this should be done with the power disconnected.

Regards,
Penguin45.

[suedehead1]

Re: Earth Trip Fault – Servis 1000 Automatic

if there is an earth leakage in the heater the machine wont spin.
and also plug out before checking.

[Penguin45]

Re: Earth Trip Fault – Servis 1000 Automatic

Ah, but it does – then trips out…………

Penguin45.

[suedehead1]

Re: Earth Trip Fault – Servis 1000 Automatic

i am sorry you have lost me.

[Penguin45]

Re: Earth Trip Fault – Servis 1000 Automatic

It spins, it trips on high spin according to the OP.

Penguin45.

[suedehead1]

Re: Earth Trip Fault – Servis 1000 Automatic

op says it does everything except high spin i have read it again and he doesnt say it trips on high spin.
modules dont trip switches in my experience, i would check the wiring which goes to the motor in case it is rubbing on the tub.
plug out.
i would disconnect the heater and try it on spin.

[mrfilly]

Re: Earth Trip Fault – Servis 1000 Automatic

Hi Guys,

Thanks for all your input. Having metered the motor, found the earth fault was on the motor.

Have been quoted £150 for a replacement, don’t think this is viable on a £240 6yr old macine…..

By the way found the model number, M3010W.

Cheers
mrfilly

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