Baxi Solo 2 50 RS - Intermittent Cutout

[Silkyshark]

Hi All.

I have an issue with my Baxi boiler, with it cutting out intermittently. It's serviced annually, and has had 4 thermocouple replacements in the past 3 years - none of which have resolved the problem.

I can get the boiler to light, after a lot of coaxing. At first, the solenoid will ping and stop the burners after a few seconds, then they'll burn for a few seconds longer, and so on, until eventually they will burn for a few minutes, when it will stay alight.

However, if it is just on the pilot light for any more than say 8hrs (usually overnight) then it will cut out - the flow valve will pop the solenoid on startup, and I have to re-light the boiler again.

At the moment I am overcoming this by running the boiler all day on one on/off, and using the other two on/off's to fire it up for 20mins twice during the night.

The flame is also a bit orange now - used to be clean blue. It burns more cleanly once the burners have been on for a while, and the boiler warms up, it also bumps a lot but I know that's scale.

Any thoughts?

Cheers

 

[Agile]

Needs a proper service I think.

Who has been servicing it?

How long does it take them?

Tony

 

[Terry lambert]

It does sound that way

 

[Silkyshark]

Cheers guys.

The service normally takes 3/4 of an hour, maybe an hour with the thermocouple fitting.

I've thought about getting another company to look at it - do you think I should to that before investing in a gas flow valve.

That's the bit that it felt like was going wrong - I've spent a lot of time loving the boiler back to life the past week... The boiler and I are more acquainted than my Wife!