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pilot light

A pilot light is a small gas flame, usually natural gas or liquefied petroleum gas, which serves as an ignition source for a more powerful gas burner. Originally a pilot light was kept permanently alight, but this wastes gas. Now it is more common to light a burner electrically, but gas pilot lights are still used when a high energy ignition source is necessary, as in when lighting a large burner.
The term "pilot light" is also used occasionally for an electrical indicator light that illuminates to show that electrical power is available, or that an electrical device is operating. Such indicators were originally incandescent lamps or neon lamps, but now are usually LEDs.

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  1. D

    Baxi Bermuda SP3 Fire not Lighting

    Hello all. Tonight i tried to light my gas fire place for first time this year and its not operating. I can get the pilot light to come on, but its not igniting the rest of the fire. I took the front off and the fake coals to see if anythings coming from the gas pipes under the coals and it...
    • Dave Beck
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    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  2. M

    combi double feed tank/cylinder rads hot but water cold!!!

    was wondering if anyone could offer any advice, the system was recently drained for a radiator to be changed. After refilling all rads were bled, as well as a bleed valve situated near the cyclinder. The radiators are working fine if anything they appear to be a little hotter than normal but...
    • mannersme
    • Thread
    • banging bleed boiler central central heating system cold cold radiator combi cylinder double heater hot hot rads hot water hot water supply immersion heater noise pilot light radiator radiators supply system tank valve water
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  3. C

    chaffoteaux water heater

    I have a chaffoteaux corvec britony 2A water heater. The pilot light is lit, but when the hot tap at the sink is turned on there is no hot water. The water pressure is low, and the burner will not fire up. I have checked the water govener and the diaphragm, everyone seems to say change the...
    • chaffoteaux
    • Thread
    • burner diaphragm gas heater hot hot water no hot water pilot light pressure problem sink tap valve water water heater water pressure
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  4. S

    Maxol Microturbo 50 intermittent pilot light fault.

    Hi there, This is my first post. Please help! :? I have an intermittent fault with my boiler. Heating is on a timer - sometimes the pilot lights as usual, heating comes on for a while & then pilot light goes out, heating goes off, house is freezing. I manually press reset & it works again for...
    • Sparkly
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    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  5. M

    Gas combi boiler increasing pressure & switching off

    Hi all - the original problem was a combination of the water pressure decreasing sometimes and increasing other times, both resulting in the boiler making a 'click' sound & the pilot light going out within an hour or so. We have bled all radiators and cannot see any visible signs of leaking...
    • mrsh
    • Thread
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    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  6. B

    Glow-worm BBU50 problem

    Hi there I was wondering if anybody could help. I have a Glow-worm BBU50 back boiler, the problem is it will not fire on it's own first thing, just goes on to the red light on the box under the fire, but once it fires it's ok all day till you shut the system down. I have had three gas engineers...
    • brierley4life
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    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  7. T

    How much to replace boiler thermocouple?

    The pilot light on my boiler keeps going out. When relit, it goes out immediately when the gas button is released. I suspect that the thermocouple is dirty or faulty. Around 4 years ago a similar thing happened. When I look out the invoice I see that we were charged for 3 hours labour for...
    • Tab22
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    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  8. J

    combi boiler wont fire

    combi boiler wont fire up, pilot light is lit any ideas?
    • Jaysm1
    • Thread
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    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  9. C

    Help! Biasi 24s combi boiler 1998 Problem! Not firing up

    Hi all, i have a Biasi 24s combi boiler and it is not firing up and heating my water or radiators. Can anyone give me any instructions of what to do to srt this out please? Here is the scenario: The system was working until this morning when i woke up, and was in timer mode. Up to this...
    • consumer1
    • Thread
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    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  10. GQuigley67

    high inlet pressure at meter

    my girlfriend just moved into a new house and today i was removing the fire, and when i done my usual checks i thought I'd check the inlet pressure as the Boiler kept on cutting off, think it was the pilot light going out. The Pressure at the Meter is 25mbar, is this 2 high?
    • GQuigley67
    • Thread
    • appliance boiler flow gas head high inlet low flow mains mechanical meter pilot light pressure seal supply system test work working pressure
    • Replies: 20
    • Forum: Plumbing Jobs | The Job-board
  11. A

    problem with sime friendly

    boiler does not fire up on either heating or hot water the gas seems to come throuugh to light the pilot light then nothing more i checked with the manometer to see if it was getting through where you would check the burner pressure i had a Reading of 0.2mbar i take it the gas valve is not...
    • andf380
    • Thread
    • boiler burner burner pressure central heating system fan flue gas hose hot hot water pilot light pressure problem sime switch valve water
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  12. A

    Worchester Boiler keeps shutting down.

    Hi - We have a 10 year old+ Worchester Combi boiler. We have a problem with it where the pilot light keeps switching off. It goes for weeks without a problem, then we can go a whole weekend where it will not stay alight. Last night I watched the pilot light after I re lit it, to try to...
    • andrewsti
    • Thread
    • boiler burner central heating system circulation combi combi boiler controls flow gas gas pipe gas safe keeps lockout oil pilot light pipe problem pump pump problems safety test valve worchester
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  13. R

    gloworm economy 50 pilot problem

    I have fitted a new pilot light assembly and still it keeps going out.the light stays in when the is in standby and when the programme runs but as soon as the main burner dies down for reaching temp or programme finishing the pilot goes out also . Any ideas anyone?
    • richard.lear1
    • Thread
    • blockage boiler burner eco gas gas safe pilot pilot light pressure pressure problem problem safe valve
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  14. M

    Baxi Solo WM 50/4 PF

    Intermittent fault. Pilot lights OK but main burner doesn't always light. If I isolate the electrical supply after the fault occurs and leave for a while, then re-connect, the boiler works fine for a week or so and then the fault occurs again. Fan works fine so I'm thinking maybe air pressure...
    • muddy waters
    • Thread
    • air appliance baxi boiler burner connect connections gas gas fire installation pilot light pressure problem supply switch valve
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  15. T

    Intermittant Hot Water. Help!!!!

    Hi, have a problem with my Worcester 24CDI boiler, CH seems fine but if i take a shower, run a bath or turn on any hot tap the boiler fires up no problem, continues running for a few minutes, then after about 4-5mins cuts out for about 10-15 seconds then fires up again for about 10-15secs and so...
    • tenchking
    • Thread
    • bath boiler cold dhw eco help hot hot water lead pilot light potterton problem shower showers tap trap water worcester
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  16. P

    central heating problems ideal elan 2

    can anyone help. I have an ideal elan2 boiler and it has just started not firing up when it should. When its selected to water only or water and heating the boiler will not fire up, the pilot light is on but nothing happens, when i switch the boiler off turn the pilot off and re light the...
    • peto1234
    • Thread
    • boiler central central heating system diy ideal not firing pilot light problems switch water
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  17. B

    Chaffoteaux Britony 11T water heater problem

    Help again please. Old Britony 2T water heater (regularly serviced) which heats the water in the kitchen & bathroom. The pilot light keeps going out when I turn the dial to the flame symbol after lighting it. We have been away for 10 days & returned to find the pilot light has gone out (1st...
    • bclondon
    • Thread
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    • Replies: 10
    • Forum: Plumbing Jobs | The Job-board
  18. L

    Worcester Green pilot on & off, pressure up and down.....

    Hi My damn Worcester combi condensing boiler has gone wrong AGAIN!! Last year it was a scaled up heat exchanger that was replaced by British Gas and in the last few weeks it's been going wrong again (different problem though I think). What's been happening is the green pilot light goes off...
    • Lisadp
    • Thread
    • bar boiler boilers combi condensing flush gas green hot hot water pilot pilot light pressure problem refill system tap water worcester
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  19. J

    Glow worm space saver 45 60b

    Hi folks, this is my 1st post here so please be gentle as I know nothing about boilers (well not the gas type anyway :D) I have an old 45 60b that has been playing up for a year or so , as soon as I put it on h/w & c/h the pilot light go's out.I could live with this as it still gave me hot...
    • Jon Grimsby
    • Thread
    • air blockage boiler burner fitting fix flame gas glow glow worm glow-worm hot water inside job pilot light plumber relight safe safety sealed space tap valve water work worm
    • Replies: 18
    • Forum: Plumbing Jobs | The Job-board
  20. M

    potterton profile 100e

    Can someone help please .ive just came back from hols and my boiler pilot light is out .However when i switch the hot water to con it fires up and lights.However it then turns off after 2 mins .i'm not sure this is right .theirs always a pilot light on ?
    • macman68
    • Thread
    • boiler electronic free hot hot water pilot light potterton profile pump switch taps water work
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
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