Hello,
I have a Worcester Heatslave 12/14 combi oil boiler which will not run. We ran out of oil back in April this year and due to the hot weather and finances have only just got round to getting the tank filled.
On first starting the boiler it goes into lockout, to be expected with no oil, so I then bled the system, first by disconnecting the flexible hose at the oil pump, opening the oil stop valve and collecting the oil in a container. Quite a lot of air was expelled until I had a continuous stream of oil. The valve was closed and the flexible pipe reconnected.
I then ran the boiler to lockout 3 times, as described in the installation and servicing instructions, while opening the bleed screw on the side of the pump, again collecting the expelled oil.
Resetting the lockout, the fan runs for about 3 seconds, then the valve opens and you can hear the burner light. It stays lit for about 4 seconds before going into lockout. Resetting the lockout ends in the same result each time.
I have now also replaced the burner jet, as I figured it may have become damaged or blocked from the dregs of the tank and have also adjusted the electrodes in line with common settings for oil burners, as I am unable to find any information on the Novajet 1 burner.
The boiler still goes to lockout after about 4 seconds of burn.
Having read a lot of forum posts on similar subjects, it seems as though the photocell may be at fault, but I cannot see why this (or any) component should fail only by running out of oil!
Any advice or bright ideas would be welcome.
Tony
I have a Worcester Heatslave 12/14 combi oil boiler which will not run. We ran out of oil back in April this year and due to the hot weather and finances have only just got round to getting the tank filled.
On first starting the boiler it goes into lockout, to be expected with no oil, so I then bled the system, first by disconnecting the flexible hose at the oil pump, opening the oil stop valve and collecting the oil in a container. Quite a lot of air was expelled until I had a continuous stream of oil. The valve was closed and the flexible pipe reconnected.
I then ran the boiler to lockout 3 times, as described in the installation and servicing instructions, while opening the bleed screw on the side of the pump, again collecting the expelled oil.
Resetting the lockout, the fan runs for about 3 seconds, then the valve opens and you can hear the burner light. It stays lit for about 4 seconds before going into lockout. Resetting the lockout ends in the same result each time.
I have now also replaced the burner jet, as I figured it may have become damaged or blocked from the dregs of the tank and have also adjusted the electrodes in line with common settings for oil burners, as I am unable to find any information on the Novajet 1 burner.
The boiler still goes to lockout after about 4 seconds of burn.
Having read a lot of forum posts on similar subjects, it seems as though the photocell may be at fault, but I cannot see why this (or any) component should fail only by running out of oil!
Any advice or bright ideas would be welcome.
Tony
