For future reference: the washing machine is a Boss MAXX 6 - WAE32160NN/01. the power supply board is labeled 5560 005 559, 9000159339, 9000162937, 170706/418 and 5560 004 652.
Recently my washing machine has started smelling like burnt electronics during use. It still works, but after a bit of sniffing around I found that it was most likely the PSU board. It has serveral burnt areas.
Surprisingly I can't seem to find any malfunctioning components. The worst condition (most burnt) part seems to be the switch mode transformer, and it's not a standard part, so I don't see how to source a replacement. (only option would be to buy the entire circuit board with a used part in questionable contition)
There are only two electrolytic capacitors on the board - one is a 10uF 400V, the other is a 470uF 25V.
I'm wondering - if I were to first measure the voltage over the 25V capacitor, then remove the switch mode transformer - then supply the correct voltage from an external power supply to the 25V capacitor - is it likely that the unit will work like normal? Is this a reasonable workaround?
here's a board for sale - with the exact same burnt spots:
https://appliancespareparts.mysimple...59-used-tested
definitely a weakness by design...
Recently my washing machine has started smelling like burnt electronics during use. It still works, but after a bit of sniffing around I found that it was most likely the PSU board. It has serveral burnt areas.
Surprisingly I can't seem to find any malfunctioning components. The worst condition (most burnt) part seems to be the switch mode transformer, and it's not a standard part, so I don't see how to source a replacement. (only option would be to buy the entire circuit board with a used part in questionable contition)
There are only two electrolytic capacitors on the board - one is a 10uF 400V, the other is a 470uF 25V.
I'm wondering - if I were to first measure the voltage over the 25V capacitor, then remove the switch mode transformer - then supply the correct voltage from an external power supply to the 25V capacitor - is it likely that the unit will work like normal? Is this a reasonable workaround?
here's a board for sale - with the exact same burnt spots:
https://appliancespareparts.mysimple...59-used-tested
definitely a weakness by design...
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