Pilot light going out?

[mcniven]

Alright team

Went to a floor standing old boiler today and what's happening is the pilot light is going out after about 5 minutes of the boiler being u
And running, not just the burner going out but the full pilot.

Does this still point towards thermocouple even although it stays lit for the first 5 minutes?

Thanks man!!

 

[JAP&H]

Only me, but would renew thermocouple and see what happens.

Is there an FSD (tube type) fitted, they can put the pilot out though.

 

[mcniven]

I've not opened her up yet just relit pilot got a call as I was driving home

 

[Millsy 82]

What boiler is it

 

[dancinplumba]

Check pilot is touching tc, if not check pilot injector, check when main burner lit if it's being pulled away from tc, if ok check tc then tc interuptor if fitted, gas valve. Has it go o/heat stat ? Is pump running ?

 

[Rickster123]

I would say its an over heating problem.

 

[dancinplumba]

Yea after five mins me too. Probs pump

 

[mcniven]

Would overheating cut off the pilot?

 

[mcniven]

Millsy unsure was last min of day just looked and relit

 

[dancinplumba]

Would overheating cut off the pilot?

Yep via interrupter. Check pump working