ideal turbo 2

[wongaman]

Someone please help.

I have a ideal turbo 2 boiler. It has four lights on it in vertical direction. starting from the top.
light 1 = boiler ON
light 2 = air pressure OK
light 3 = burner ON
light 4 = overheat
when I turn the heating or hotwater on. lights 1 and 2 come on. However, burner light flashes on and off and there is no hot water or heating.

Any ideas what could be playing up here?

thanks in advance for taking the trouble to reply

 

[ChrisR]

No ignition, so it's a Corgi bloke you need.

 

[wongaman]

Chris R

I may end up calling the Corg bloke. However, it would be nice to get some insight to what could possibly be wrong with the damn thing.
The pilot light comes on, but the burner doesn't.
Previously I had this problem, a corgi bloke changed the pump. I have just replaced the pump following some guidance given on this site. The pump direction is correct because I took note of it before I took the old one out.
The old pump was MultiheadII. The new pump is Grundfos super selectric. But unfortunately the problem is still there.
Strange thing is the problem is not consistant. The heating come on once in a blue moon.
Please offer further assistance if possible.

 

[kevplumb]

flame sensing
conduction/rectification not working as chris said corgi job

 

[ChrisR]

COUld be gas valve, or bad pilot condition too. Ditto!

 

[kevplumb]

im adamant now ive got my posting av above yours im not letting it slip

 

[PEDANTICVINDICTIVEMAN]

Blocked condensate pipe/trap.