Overheat light constantly on...

[brad1980]

Hi everyone,

I have a new problem with my Potterton Statesman Flowsure & our plumber is unavailable for Easter. Have tried all the numbers in the book with no luck!

Last night, the heating didn't come on. Looking at the boiler, the overheat light is on, despite the temp gauge showing that it is cold. It has been off for around 24 hours now, so I can't imagine it is particularly hot!

I have turned the boiler off, tried to manually restart etc; but the light remains on.

A few weeks ago, we had another issue with the actuator which was replaced by a local engineer. This solved the previous problem and I don't think the two are related.

I had thought it might be either that we had stupidly run out of oil (we havent) or that their might be an airlock - my dad suggested running the pressure up to 2 bar, and then clearing it back down to 1. Tried this without any improvement.

The only other point to note was that the initial presure when looking at the boiler this morning - it had dropped to around half a bar. My first thought was to bring it back up to 1. This obviously didn't help either.

Any help would be greatly appreciated - we can't get an engineer out and its supposed to be snowing all weekend here! Argh!

Thanks,
Brad

 

[WDIK]

have you tried the overheat reset button?

 

[brad1980]

Hi - have tried the the reset button on the burner quite a few times - both with the boiler on and off. When holding the button in the light goes out; as soon as you release the button the light comes back on again.

 

[WDIK]

that is the burner lockout reset, not the over temp reset

check your user manual

 

[brad1980]

That would explain things. Can't seem to find anything obvious that is the temp reset & there is no mention of it in the manual. Can you point me in the right direction?

Cheers for the help.

 

[brad1980]

Found it! Problem solved.

 

[WDIK]

yes just inside the case,
but why did i have to read the manual for you, page 4

 

[Gasguru]

Pull off the front casing panel. Look unders the controls panel and you should see a small button...push it back in. However you may have an undelying problem with the boiler overheating.

 

[WDIK]

quite so Guru

i'd check your pumps running and that the boiler control stat works correctly, again page 4 of the user manual

 

[Gasguru]

The boilers are a pile of carp...better off converting it back to heat only with an unvented.