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Anyone had any bother with these? Boiler goes to lockout and the customer has to reset, usually in morning. I think it could be the CH Thermistor but just thought i'd ask here before I head to it tomorrow night. IIRC it could be thermistor, gas valve or PCB? Anyone encountered this...

Hi, Wonder if anyone can help. I've had a job that I went too where the PCB was burn't out on a ARISTON MICROCOMBI 23 MFFI and not working. It was burn't underneath at the capacitor. I've fitted a new pcb board (part number: 65100248) but now after fitting it the power light on boiler...