gloworm 30cxi f12 fault

[sharpy]

Hi,can anyone help i have a gloworm 30cxi that has a f12 fault when i turn boiler on it will pulsate whooshing noise with green light flashing this is quite rapid and then will slow down and eventually either turn on and produce hot water heat to rads or it wont and bring up the f12 fault with red light but then if i turn boiler back of again and turn on it will work..?I have checked main pcb all seems ok and connections are firm the smaller control pcb does have a couple of heat marks around around two electrodes whether this has anything to do with it i dont know as boiler itself can get very hot inside ..?thankyou

 

[diamondgas]

You need someone who is qualified to work on your appliance sharpy! You'll not get much luck on this site to DIY alas welcome all the same

 

[Dotty]

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