R
R1CKY
Asked to service and remedy a fault on the above boiler. It cuts out after 15 minutes, then eventually runs for a shorter and shorter period. The motor continues to run, pump pressure stays puts, its like the fuel supply is cut off. It takes a couple goes on the reset button for it to fire again.
It was running a bit lean judging by the deposits in the heat exchanger, it has a new nozzle and I replace the ropey looking photocell. CO2 readings are spot on, pump pressure too. Tried a new control box, made no difference. Resistance on the solenoid is fine at 2.2Kohm.
Sounds to be running faultlessly, no coughing or spluttering, the flame just sounds like it stops.
Tank is pretty much level with the burner, with no tiger loop fitted and customer has noticed a smell of oil recently.
I'm thinking maybe the non return valve in the nozzle assembly could be playing up when it gets hot. Any ideas?
It was running a bit lean judging by the deposits in the heat exchanger, it has a new nozzle and I replace the ropey looking photocell. CO2 readings are spot on, pump pressure too. Tried a new control box, made no difference. Resistance on the solenoid is fine at 2.2Kohm.
Sounds to be running faultlessly, no coughing or spluttering, the flame just sounds like it stops.
Tank is pretty much level with the burner, with no tiger loop fitted and customer has noticed a smell of oil recently.
I'm thinking maybe the non return valve in the nozzle assembly could be playing up when it gets hot. Any ideas?
