Baxi Combi 80 Eco Boiler

[Harrybandit]

Hope anyone can help....I have a Baxi Combi 80 Eco boiler, the problem is that the boiler keeps firing up for approx 10 seconds then shuts down....then fires up again within a minute. I have read the manual and it appears to be a faulty safety thermostat resulting in the boiler constanty firing up.
Has anyone got any suggestions?

Thanks Harry

 

[baxpoti]

Flame rectification problem.

 

[Agile]

It would help if you described exactly when the problem occurs.

What happens when you take hot water?

What happens when you put it on heating?

Tony

 

[Harrybandit]

Thanks for the responses, when you turn the DHW thermostat control up the boiler fires up as described, it appears ok on the heating side.
I have checked the safety thermostat for continuity and that was ok, I also tried the reset button but still the problem persists, it sounds like the water is getting too hot and creating noise etc.

Hope this helps explain a little more.

Many thanks again

Harry

 

[Agile]

With the heating off what does the boiler do?

When you turn a hot tap on then what does it do?

Tony

 

[promax]

the hot water microswitch is jammed in the made position,thus the boiler thinks there is a demand for hot water so the boiler keeps firing???

 

[Agile]

That took a lit of time to squeeze the answers out of Harry!

Surprising that Baxpoti did not guess whats most likely to be wrong first time.

I dont make any guesses until I have most of the answers.

Tony