Post by Jimbob on Dec 15, 2013 15:08:38 GMT -5
We have a 6 year old Potterton Powermax HE and have for the last few weeks been suffering from a40 error code. This causes the system to lockout and we reset the system. We have had an engineer out to look at it and he is of the opinion thst the pumps are fine but it could be an electrical problem and needs a new pcb. He is not 100% sure this will work. Any advice would be appreciated.