Boilermate 2000 fried PCB

[Rob Sp]

Hi i've had no heating or hot water for days now as the PCB on my boilermate 2000 is fried and i'm told it's likely because a pump has failed that then overloads it. How do I identify which pump caused the issue though as the board is badly damaged and the boilermate has 3 identical pumps?

 

[SimonG]

Test the pumps individually.

 

[Rob Sp]

I don't know how to test them individually is it a case of bypassing the fried PCB to provide power to each pump in turn or something? i'm not a plumber........and I am trying to get someone to come out but it broke down on Xmas eve so not that easy.