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Dear friends,
I am using a Fisher & Paykel washing machine and the model is GW709AU.
It is 7 years old and has been working very well until last week. Everything
is working all right until the wash progress reaches “rinse”, that is, when the
machine is pumping old water out and put new water in, I can smell “electrical
burning smell” and the machine power off automatically. I wailed for about 5
minutes and used the machine again. Same situation happened again.
I did try to use the machine a few times and the same thing happened. I think
it is better to ask experts. Could the water pump cause the problem?
Please help. -DanRe: Eelectrical burning smell and power automatically off
Hi
The pump is a most likely cause so its not advisable to continue trying to use the machine but get an engineer out ot it.if the appliance does catch fire then its bye bye machine and possible kitchen then house.
The trip switch (fuse) is there to tell you there is something electrically unsafe.
Bryan
Re: Eelectrical burning smell and power automatically off
Hi Bryan, Thanks your advice. It costs $100 to call out for help, not including parts.
Therefore, I am trying to fix it myself. Any possibility to test the pump by using a
multimeter or something else to find out if the pump is causing the problem? -DanRe: Eelectrical burning smell and power automatically off
You should get 33 ohms through the pump. It has a thermal cut-out in it, if the the motor gets hot it trips and shuts down. The pump is part of the power supply to the machine, so if the pump does cut out, the entire machine turns off.
Power off if checking – the pump is at mains voltage.
Penguin45.
Re: Eelectrical burning smell and power automatically off
Hi, I’m quite new at this so forgive me if I’m wrong, but why not remove the pump and check for blockages? It’s quite easy to do – TURN THE POWER OFF, tip the machine back so that you can work underneath, then locate the pump (it has a small ‘fan’ attached to it), note the white plastic ‘tang’ just above the pump body.
Unplug the wires to the pump motor (one green plug that has to be squeezed to remove, one single wire terminal (earth) that pulls off.
Holding the pump motor with one hand, twist anticlockwise while releasing the white plastic tang wtih the other hand. The seal is quite tight so you have to twist firmly.
From your message I gather the pump is still working to some extent, but I just wonder if the bearings are a little seized or some other restriction is causing it to overheat.
Best of luck,
-AlexRe: Electrical burning smell and power automatically off
The point is that as the pump ages, the water seal eventually weeps water into the top bearing. This causes the motor to slow down as the bearing becomes sticky – the drag causes the pump motor to overheat and the TOC shuts it down.
It’s actually quite difficult to block one of these……… 😀
Penguin45.
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