Hi oilboffin,
Thanks, the burner does not even spin as it has no power coming from the control panel. We replaced the solenoid and checked the photo cell. It seems that something is happening prior to sending instruction to power up pump, solenoid etc.
I have an oil fired Firebird that is c5years old. I have had the Riello Digital Control Box M0535-MPF replaced and solenoid but it keeps Locking Out, flashing Red & Green after reset. My plumber has checked and on the new control box has no power on the Fuel Pump output or solenoid output at any...