[stuj]

Re: F&P smartdrive 9 5.5 No Power

The machine is now working.

A further inspection of the PCB showed that the surface mount MOSFET IRLL3303 had exploded (on both boards). Went to the local electronics store and picked up a replacement 9644(closest spec in stock). Replaced this and the other 2 blown power transformers (robbed from the spare board) and the machine is now working.

Who knows how long it will work. Not sure if i would buy a F&P unit again?

StuJ

😀

[stuj]

Re: F&P smartdrive 9 5.5 No Power

Update…

I did some fault finding on the board and found that the pcb mount fuse had blown and 2 of the insulated bipolar transistors (surface mount) had shorts, these are used to control the pump. so, i suspect a pump overload cooked the component. The part number for the transistor is IRG4RC10S and these are available for $11 for the local electronics store. But, delivery date is 3 days. So, i called into a washing machine wrecking business, operated by a couple of women, who knew a great deal about the unit. They gave me a faulty unit for parts as they dong get them re-furbed anymore because the refurbished boards had a history of early failure. I will cannibalise the unit for parts tonight and see if the unit powers-up.

StuJ

[stuj]

Re: F&P smartdrive 9 5.5 No Power

Thanks for the reply Penguin45

I have trawled though the past posts and found some good info.

stuJ

[stuj]

Re: F&P smartdrive 9 5.5 No Power

Update..

Rang F&P customer care and they were very helpful. They suggested that the most likely cause of failure was a leaking pump that can cause a fault on the motor controller board. The costs would be New Board A$180, new pump A$80 and a callout of $110…total of A$370. a new machine is $A700.

I will have a go at fault finding the board…I assume it is a toasted power transistor.

Appreciate any feedback on fault finding on these controller boards.

Stuj

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