Bosch d/w pcb blown

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  • October 22, 2009 at 12:35 am #49519
    Steven
    Participant

    Had a couple of bosch built in D/W lately with resistor blown on pcb, it appears that the dispenser wax switch has caused this. 😕

    Strange that it has happened to just built ins, any reason ❓

    Anyone else come across this fault ❓

    October 22, 2009 at 7:05 am #300148
    Simon46
    Participant

    Re: Bosch d/w pcb blown

    Have had a few of these yes.

    S.

    October 22, 2009 at 7:09 pm #300149
    PINKY
    Participant

    Re: Bosch d/w pcb blown

    It’s not just the built in, quite common but its a triac they blow.Not sure about a resistor.?
    The other thing that will cause a triac to fail is the motor on the heater. This is obviously a different triac so you need to check!! 😉

    October 23, 2009 at 4:34 pm #300150
    Steven
    Participant

    Re: Bosch d/w pcb blown

    Model SGV4313GB07.
    This board was quite badly blown tracks on the one side with the usual heater relay contact joint melted, Triac on the other.

    No transfer motor on heater on this one. So must be dispenser.

    Have checked this one the dispenser is not opening?

    New dispenser and pcb fitted 264882.

    Configured pcb as per instructions, yet it fill, heats and washes ok, just not releasing detergent.

    No supply from board. 😕 Any. 💡 could it be Faulty pcb ❓ or am i missing something?

    Sorry Pinky your right ment triac.

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