Pilot light cutting out

[Aviboy]

Hi Guys

The pilot light for my Potterton Kingfisher boiler remains lit when the HW or CH are not required. However, upon either HW/CH being turned on the burner fires up and starts off heating the water/radiators fine for a few minutes but then suddenly cuts out and extinguishes the pilot light too. I then have to wait a few minutes before I can successfully re-light the pilot light as attempting to do so immediately after it cuts out is not possible as the pilot light does not remain lit once I release the control button.

Is this some problem with the thermocouple?

Cheers

Aviboy

 

[Softus]

Only probably, but since it's cheap to replace you might as well do that and see if it cures the problem.

It's illegal and dangerous to work on a gas appliance unless you're competent.

 

[Aviboy]

Thanks - if its not the thermocouple what other possible explanations could there be?

 

[Softus]

What experience do you have of working on gas appliances?

 

[Aviboy]

I have great experience of watching my regular boiler repairman! However, he is a difficult man to get hold of so narrowing the problem down beforehand is all I am after especially with his charge rate

 

[Agile]

It sounds as if the boiler is overheating and tripping the overheat stat.

Probably a failed pump, might be possible to spin it, see FAQ.

Tony

 

[Softus]

I have great experience of watching my regular boiler repairman!

In that case it would be unwise of me to advise you further, save to say that I would expect your regular repairer to home in on the fault very quickly.

 

[Aviboy]

I put the pump onto a higher speed and also reduced the boiler stat to a lower setting. All works fine now! Thanks for the non-pedantic advice Tony which was very useful
(remainder deleted)

++++
Moderators note:

I have removed some posts which were ill-tempered and/or abusive and/or of no value

Please be civil.

M R
++++