Baxi solo 3 PFL 30/80 started with clicking noises fast then slow in mornings for last couple of weeks.Now all it does is buzz very loudly no CH or HW. sounds like noise coming from little grey box inside - is this the PCB? I know nothing, sorry.
Any advice would be appreciated.
I had/have the exact problem, except that my boiler now trips out the electric. Replaced the PCB £150. Worked OK for 1 week now got same problem back!!!
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