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Fisher & Paykel "Smartdrive" washing machine motor control

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by peterlonz » Mon Nov 07, 2011 7:13 am

Hello everyone,
My very first post & it concerns a brand sold in New Zealand, Australia & the USA.
I am unsure if the "Fisher & Paykel" brand is distributed in the UK.
Anyway, they utilise an electronic motor power controller to control their patented "pancake" drive motor.
One of the water cooled 3 terminal PWM switches has failed along with several adjacent components.
I have ID'd all but one very small diode like component & would dearly love to repair since a replacement board is $170.
The component is about 2.5 mm body length by about 1.5mm in diam & looks like a diode.
Is it likely anyone here could help, I guess some knowledge of the "F & P" control design would be helpful.
Thanks
Peter O
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by iadom » Thu Nov 10, 2011 10:46 pm

Hi Peter, just spotted this post.

I have moved you to the Australasian forum, due to our resident Fisher & Paykel expert being indisposed you will have a better chance of an answer in here.

Please feel free to bump the topic at any time.
Please submit your questions in the relevant forum. Unsolicited PM's and emails will not be answered.
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by peterlonz » Thu Aug 16, 2012 12:37 am

Quick follow-up:
I eventually obtained all 6 of the replacement components with only a slight doubt about the diode in this thread.
De-soldered all suspect components, cleaned the carbon "blast damage" to the circuit board, & re-fitted the new components.
When the control board was reassembled in the machine & mains power switched on ................... Bloody nothing !!
Well I guess I asked for it because I have no real way of knowing what caused the initial fault or of testing the repaired board.
I really think Fisher & Paykel should rethink there absurdly restrictive policy of not providing a circuit diagram with reference voltage check points.
This item new is now priced at Aus$339 - about HALF the current cost to replace the complete machine. That does not include the technicians labour charge if you need a repair tech.
Moral of this story is probably: don't attempt a control board repair unless you are really experienced in such matters.
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