Bosch WAT28370gb/13 Inverter pcb blown

[DPDOM]

Been to the above today to find a blown inverter pcb.
Does anyone know if it is caused by something else or is it usually just the Inverter??

Regards

Dave

[electrofix]

how has it blown

does it look like there is a cause ?

has it gone with a bang ?

Dave

[DPDOM]

It has popped a track under and to the side of a red/brown component next to the large capacitor.

[electrofix]

well its not a main timer problem although you can never rule out 100{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} that its survived, i would think 95{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} chance its ok

so your down to motor or inverter

check where the track is going, if its going to a motor phase connection then the motor is suspect for poss damage or cause
if its on the live in then its a possible rectifier problem. If you did a check on the bridge rectifier you may well find it short

either way you have had high current flow you just need to figure out to where. look for other tracks where the paint has come off but not blown. A clear indication they have got hot through high current

Dave

[DPDOM]

Seems like the motor is the cause. Looks like another on the scrap heap.
Thanks so much for your help Dave.

Dave

[Author]

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