Can anyone help - I have a Grant Minor One S burner which has been playing up recently. Started with the oil pump developing a leak (Suntec As47A) Around the same time, the motor would intermittantly 'stick'
Decided to change the motor and pump and drive coupling. (all genuine parts) but now, no oil comes out from the pump. It points to the solenoid valve not operating, but I can hear it clicking after 10sec, but nothing.
I've swapped the control box and put a new photocell in but still no oil. If I remove the solenoid piston, I get oil.
I would say that this definately points to the solenoid valve but I swopped the pump (which incorpoates the solenoid) back to the old one and no oil comes through that one either.
I've run out of ideas
Any help or pointers would be much appreciated