Hello together,
the pump of my machine läfut continuously already with switching on the main switch. If I switch it on at the front, the normal procedure starts (..Device heats up... Please select... ...) inconspicuously.
I have already read somewhere else that this malfunction is mostly due to a defect in the power print. Optocoupler or triac. Fortunately for me, all I need now is someone who can provide me with a little specialist knowledge. A circuit diagram would be great! how can I check opto-couplers and triacs? There are other ways to find the error?
Many thanks already!
Frank
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