short story: ideal elan nf250 boiler, approx 15 years old, used for CH/HW. In the last month or so, the pilot light extinguishes, for apparently no reason, but the boiler sounds like it is still running - ie their is an exhuast from the flue. Also the HW water pump continues to run, with the radioators getting colder and colder. The pilot appears never to restart. If you switch the boiler off and on, pilot restarts instantly, and will continue to run for anywhere between 20 minutes and six hours.
Slightly longer story. House is 3 bed detached, 1 lving room, 1 diner/kitchen approx 15 years old, microbore (10mm?) piping on the rads, only 2 doubles (lounger/kitchen), some TRVs installed.
Moved in two years ago, plumbing always not quite right. Excessive kettling, and difficulty getting radiotors hot. Last May got a plumber in to powerflush and x100. Radiators seemed better, kettling still not good. Tried to get plumber back, but he went bust. On advice, turned the water pump from setting II to III. Noisy, but kettling no longer a prob.
As per first para, boiler pilot started to cut out. Got in a recommended plumber. Took a look at it, noothing obviously wrong, and thought it might be the boiler temp control (1-6 scale thingy). Replaced, seemed ok, boiler ran for about 5 hours fine. And cut out.
Of course this is the day before xmas hols and we went away. Returned to find things worse - boiler now regularly cutting out within an hour. We're still able to do the switch off / switch on thing. 'Recommended' plumber not returning voicemails
The digital timer (in the house), the room stat and the frost stat all seem to be working as intended. The only slightly unusual thing is that the pilot seems to cut out sooner if we have the HW setting on the timer ON.
So, suggestions please. All help gratefully received.
Oh and tonight I've just found a small leak from the cold pipe that leads into the bottom of the HW tank. Feck, jobbing cowboys that built this place
Slightly longer story. House is 3 bed detached, 1 lving room, 1 diner/kitchen approx 15 years old, microbore (10mm?) piping on the rads, only 2 doubles (lounger/kitchen), some TRVs installed.
Moved in two years ago, plumbing always not quite right. Excessive kettling, and difficulty getting radiotors hot. Last May got a plumber in to powerflush and x100. Radiators seemed better, kettling still not good. Tried to get plumber back, but he went bust. On advice, turned the water pump from setting II to III. Noisy, but kettling no longer a prob.
As per first para, boiler pilot started to cut out. Got in a recommended plumber. Took a look at it, noothing obviously wrong, and thought it might be the boiler temp control (1-6 scale thingy). Replaced, seemed ok, boiler ran for about 5 hours fine. And cut out.
Of course this is the day before xmas hols and we went away. Returned to find things worse - boiler now regularly cutting out within an hour. We're still able to do the switch off / switch on thing. 'Recommended' plumber not returning voicemails
The digital timer (in the house), the room stat and the frost stat all seem to be working as intended. The only slightly unusual thing is that the pilot seems to cut out sooner if we have the HW setting on the timer ON.
So, suggestions please. All help gratefully received.
Oh and tonight I've just found a small leak from the cold pipe that leads into the bottom of the HW tank. Feck, jobbing cowboys that built this place
