Hi all,
my 10 yr old heatslave has stopped firing up with no prior signs of problems. the over heat thermostat has not tripped out, no lock out, no problems with CH/hot water diversion. annually serviced and clean burning at last service according to flue gas analysis. had all the baffles out - all looking very clean for the age.
whether i demand CH, HW or both, it activates the pump but the boiler does not fire up.
i've opened two rad bleed valves at the top of the boiler - no air.
Then I opened the schrader valve on the expansion tank - and got a face full of high pressure water!! Presumably this is bad news. Could this alone be preventing the boiler from firing up?
this next part is a separate ongoing issue, probably unrelated but included just incase it's relevant: despite a clean flue & baffles, fine sooty deposit does occur in the boiler room. a couple of cracks in the insulated flue have been sealed but the problem persists.
as i write this, something about dirty windows & LDRs enters my brain....but that's lockout isn't it?
any suggestions gratefully received. unfortunately my expert oil oftec chap is off the radar at the moment....todays random pick from yellow pages scratched his head & said "you'll have to get worcester in", suggesting a PCB failure.
my 10 yr old heatslave has stopped firing up with no prior signs of problems. the over heat thermostat has not tripped out, no lock out, no problems with CH/hot water diversion. annually serviced and clean burning at last service according to flue gas analysis. had all the baffles out - all looking very clean for the age.
whether i demand CH, HW or both, it activates the pump but the boiler does not fire up.
i've opened two rad bleed valves at the top of the boiler - no air.
Then I opened the schrader valve on the expansion tank - and got a face full of high pressure water!! Presumably this is bad news. Could this alone be preventing the boiler from firing up?
this next part is a separate ongoing issue, probably unrelated but included just incase it's relevant: despite a clean flue & baffles, fine sooty deposit does occur in the boiler room. a couple of cracks in the insulated flue have been sealed but the problem persists.
as i write this, something about dirty windows & LDRs enters my brain....but that's lockout isn't it?
any suggestions gratefully received. unfortunately my expert oil oftec chap is off the radar at the moment....todays random pick from yellow pages scratched his head & said "you'll have to get worcester in", suggesting a PCB failure.