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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Glowworm Fuelsaver MKII boiler, turns off after 30-60 seconds after running
The boiler pilot light goes does not stay on, once the pilot light is
started and I turn the thermostat is turned up the boiler starts up and stays on for around 30 to 60 seconds then goes out completely. Has anyone got any ideas on what I can check or needs replacing before going mad and changing all sorts of parts ? |
#2
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Glowworm Fuelsaver MKII boiler, turns off after 30-60 seconds after running
In message .com, Bal
writes The boiler pilot light goes does not stay on, once the pilot light is started and I turn the thermostat is turned up the boiler starts up and stays on for around 30 to 60 seconds then goes out completely. This doesn't exactly make sense to me Has anyone got any ideas on what I can check or needs replacing before going mad and changing all sorts of parts ? This came up a few days ago check the fan - if the winding's too hot to touch, it's your fan If the fan's OK, then we can look elsewhere, but check the fan first -- geoff |
#3
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Glowworm Fuelsaver MKII boiler, turns off after 30-60 seconds after running
"Bal" wrote in message
oups.com... The boiler pilot light goes does not stay on, once the pilot light is started and I turn the thermostat is turned up the boiler starts up and stays on for around 30 to 60 seconds then goes out completely. Has anyone got any ideas on what I can check or needs replacing before going mad and changing all sorts of parts ? Possibly a stuck pump, therefore your boiler reaches temp very quickly and goes off? Angus |
#4
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Glowworm Fuelsaver MKII boiler, turns off after 30-60 seconds after running
On 6 Jan 2006 05:30:07 -0800, "Bal" wrote:
The boiler pilot light goes does not stay on, once the pilot light is started and I turn the thermostat is turned up the boiler starts up and stays on for around 30 to 60 seconds then goes out completely. Has anyone got any ideas on what I can check or needs replacing before going mad and changing all sorts of parts ? Do you mean that the pilot light will stay lit if the boiler isn't firing but goes out (and the burners too) after the burner fires? If so, it could be that the flame failure thermocouple (capillary device from pilot to gas valve) is on its way out. These can be obtained as a universal type for about £3 from plumbers merchants or DIY stores. I would suggest replacing that first. Also check that the pilot jet is clean and producing enough of a flame to heat the thermocouple properly. Beyond these, you would probably be into needing replacement of expensive components like the gas valve. On a boiler of this age, that would be a questionnable investment. -- ..andy |
#5
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Glowworm Fuelsaver MKII boiler, turns off after 30-60 seconds after running
In message , Andy Hall
writes On 6 Jan 2006 05:30:07 -0800, "Bal" wrote: The boiler pilot light goes does not stay on, once the pilot light is started and I turn the thermostat is turned up the boiler starts up and stays on for around 30 to 60 seconds then goes out completely. Has anyone got any ideas on what I can check or needs replacing before going mad and changing all sorts of parts ? Do you mean that the pilot light will stay lit if the boiler isn't firing but goes out (and the burners too) after the burner fires? If so, it could be that the flame failure thermocouple ( Electronic ignition and flame sensing (PCB 202006 or 202052) I still reckon that on a fuelsaver, the first port of call is the fan if it's cutting out -- geoff |
#6
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Glowworm Fuelsaver MKII boiler, turns off after 30-60 seconds after running
On Sat, 07 Jan 2006 20:44:48 GMT, raden wrote:
In message , Andy Hall writes On 6 Jan 2006 05:30:07 -0800, "Bal" wrote: The boiler pilot light goes does not stay on, once the pilot light is started and I turn the thermostat is turned up the boiler starts up and stays on for around 30 to 60 seconds then goes out completely. Has anyone got any ideas on what I can check or needs replacing before going mad and changing all sorts of parts ? Do you mean that the pilot light will stay lit if the boiler isn't firing but goes out (and the burners too) after the burner fires? If so, it could be that the flame failure thermocouple ( Electronic ignition and flame sensing (PCB 202006 or 202052) I still reckon that on a fuelsaver, the first port of call is the fan if it's cutting out Are you sure, Geoff? I used to have one of those (pretty sure it was the Mk II) and it was pilot ignition and simple minded controls....... no fan or pcb. -- ..andy |
#7
Posted to uk.d-i-y
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Glowworm Fuelsaver MKII boiler, turns off after 30-60 seconds after running
In message , Andy Hall
writes On Sat, 07 Jan 2006 20:44:48 GMT, raden wrote: In message , Andy Hall writes On 6 Jan 2006 05:30:07 -0800, "Bal" wrote: The boiler pilot light goes does not stay on, once the pilot light is started and I turn the thermostat is turned up the boiler starts up and stays on for around 30 to 60 seconds then goes out completely. Has anyone got any ideas on what I can check or needs replacing before going mad and changing all sorts of parts ? Do you mean that the pilot light will stay lit if the boiler isn't firing but goes out (and the burners too) after the burner fires? If so, it could be that the flame failure thermocouple ( Electronic ignition and flame sensing (PCB 202006 or 202052) I still reckon that on a fuelsaver, the first port of call is the fan if it's cutting out Are you sure, Geoff? I used to have one of those (pretty sure it was the Mk II) and it was pilot ignition and simple minded controls....... no fan or pcb. Well, I could be wrong because I've never come across it, but the fuelsaver I know isn't a "fuelsaver E" or any other designation. There is the Fuelsaver "F" but both versions I know have a fan and a sequence board in them -- geoff |
#8
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Glowworm Fuelsaver MKII boiler, turns off after 30-60 seconds after running
On Sat, 07 Jan 2006 23:23:42 GMT, raden wrote:
In message , Andy Hall writes On Sat, 07 Jan 2006 20:44:48 GMT, raden wrote: In message , Andy Hall writes On 6 Jan 2006 05:30:07 -0800, "Bal" wrote: The boiler pilot light goes does not stay on, once the pilot light is started and I turn the thermostat is turned up the boiler starts up and stays on for around 30 to 60 seconds then goes out completely. Has anyone got any ideas on what I can check or needs replacing before going mad and changing all sorts of parts ? Do you mean that the pilot light will stay lit if the boiler isn't firing but goes out (and the burners too) after the burner fires? If so, it could be that the flame failure thermocouple ( Electronic ignition and flame sensing (PCB 202006 or 202052) I still reckon that on a fuelsaver, the first port of call is the fan if it's cutting out Are you sure, Geoff? I used to have one of those (pretty sure it was the Mk II) and it was pilot ignition and simple minded controls....... no fan or pcb. Well, I could be wrong because I've never come across it, but the fuelsaver I know isn't a "fuelsaver E" or any other designation. There is the Fuelsaver "F" but both versions I know have a fan and a sequence board in them Yes, I think it's that. The one I had was installed in 1985. I looked on the SEDBUK database, and the original MkIIs show no fan and efficiency of 65% - same as I remember it. Then there is an 'F' model (fan I suppose) which has 68% and was manufactured up until 1991 (seems hardly worth the fan and PCB for 3% improvement). Finally there are some others going up to 79%. Presumably they must have changed the heat exchanger as well at that point. Anyway.... for the OP's benefit, I had a thermocouple fail on two occasions producing the same behaviour as (I think) he describes. Even if it's not, it's only a £3 part. -- ..andy |
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