Called out to fault on Alpha HE 33. New Fan Installed.

[Hilton owl]

Hi guys. First post on here. Called out to fault on Alpha HE 33. Fast blow fuse found to have blown. Faulty fan found to be problem. New fan installed and tested. Four days later and a call from customer to say boiler not working again. fast blow fuse found to have gone again. Replaced and gone again three days later. Anyone come across this before. Any pointers would be welcome. Starting to think wiring loom maybe

 

[Stu-B]

Could be pcb fault, water leak, pump, how do you know it was the fan.
Are you qualified to be tinkering in there?

 

[Hilton owl]

Could be pcb fault, water leak, pump, how do you know it was the fan.
Are you qualified to be tinkering in there?

Stu
am qualified GSR engineer. Fan was replaced after a process of deduction by disconnecting mechanical parts, fan, pump, gas valve, diverter motor etc. Everything worked ok with fan disconnected and fuse didn’t blow. PCB ok and no water

 

[townfanjon]

You will have to have a natter with our leader @ShaunCorbs before you get any advice on anything gas .

 

[Hilton owl]

You will have to have a natter with our leader @ShaunCorbs before you get any advice on anything gas .

Ok. Thanks for that. Not sure what the protocol was

 

[townfanjon]

Ok. Thanks for that. Not sure what the protocol was

Its the law , we get wacked with a big stick if we break the rules .