Boiler Will Not Ignite

[pollys13]

Hi,
The boiler I have is an Apollo 30/50B gas boiler. This was bought back in 1985, yes 1985. We have had no trouble with it at all. Only needing to replace the thermocouple a few times. I don't use the boiler during summer months, just use hot electric ketteles.

Due to the colder weather, went to switch it on a few days ago. Pilot light was off, thought draught might have put it out. Tried to relight it, no joy. Thinking was therocouple needing to be replaced. Got a new one off Ebay. Took old one out, no hole in it or burnt out. Put new one in, will still not ignite pilot light. We had a think, could it be the gas valve needing to be replaced? Any opinions would be welcome.
Cheers.

 

[Agile]

If the flame will not light then their may be no gas coming out of the pilot light !

Or if the piezo ignition is still working then it may not be sparking at the ignition point.

Of course these are all matters which should be dealt with a competent CORGI.

Tony

 

[Soggy_weetabix]

if the pilot lights, but goes out when you release the gas vlv button then apart from the gas valve you could have a partially blocked pilot or faulty overheat stat. (If this model has one)

Dave

 

[gas4you]

Apollo has o/h stat in series with the t/couple.

Had to replace an o/h stat the other week.

You need an RGI to test for continuity etc and the gas valve.

 

[malkie]

In the past the t/couplers that were replaced did they 100% get the right ones and do it correctley.Ive been too 2 this week were they had been fitted with uni t/couplers and just joined the overheat stat cables together and left for 4 years and 18 months i cant see the point,its dangerous and for what?

 

[pollys13]

If the flame will not light then their may be no gas coming out of the pilot light !

Or if the piezo ignition is still working then it may not be sparking at the ignition point.

Of course these are all matters which should be dealt with a competent CORGI.

Tony

cheers.

 

[pollys13]

if the pilot lights, but goes out when you release the gas vlv button then apart from the gas valve you could have a partially blocked pilot or faulty overheat stat. (If this model has one)

Dave

Cheers.

 

[pollys13]

In the past the t/couplers that were replaced did they 100% get the right ones and do it correctley.Ive been too 2 this week were they had been fitted with uni t/couplers and just joined the overheat stat cables together and left for 4 years and 18 months i cant see the point,its dangerous and for what?

Cheers.