Went to a job today, no heating. Communal hot water so boiler serving heating only:
Potterton profile 30e
Put demand on for heating.
Pump was fine.
Gas inlet pressure was fine.
Fan wasn't running.
Opened up the case to make sure the fan could spin freely, which it did.
Put my meter on terminals and got zero volts.
Accessed the electrics and had 240v on mains to boiler, mains to pump & switched live.
Put my meter on fan, air pressure switch and gas valve on main pcb and got nothing.
My diagnosis was faulty PCB.
I tried calling my boss but didn't answer and my trainer's line was dead (no signal).
So I called it and left, recommending to change to boiler.
I should have called Potterton but I didn't think at the time.
Misdiagnosis?
Potterton profile 30e
Put demand on for heating.
Pump was fine.
Gas inlet pressure was fine.
Fan wasn't running.
Opened up the case to make sure the fan could spin freely, which it did.
Put my meter on terminals and got zero volts.
Accessed the electrics and had 240v on mains to boiler, mains to pump & switched live.
Put my meter on fan, air pressure switch and gas valve on main pcb and got nothing.
My diagnosis was faulty PCB.
I tried calling my boss but didn't answer and my trainer's line was dead (no signal).
So I called it and left, recommending to change to boiler.
I should have called Potterton but I didn't think at the time.
Misdiagnosis?