Basic megaflo compact. Strange issues, no hw.

[kris]

the stat is next to immersion under the grey cover

 

[kris]

Sounds like thermostat , there should be cable with a pair of wires , one of the wires comes from timeclock when hw is switched on travels through the stat then the other comes out of stat down onto the brown wire of your zone valve, so check theres power coming back from stat through the brown wire, if there is then the stats fine, if not then its either up to temp or stat is gone . good luck

 

[armyash]

Thanks, sounds more likely than what tech were saying.

I had my doubts but not familiar with these cylinders so wasn't in a position to doubt him.

 

[armyash]

Just noticed thread title says basic megaflo - should say baxi, using the girlfriends iPad and it's got terrible predictive text.

 

[kris]

No worries ash , go online and study a diagram of a S PLAN wiring guide , infact 2 secs il get one,,


https://www.google.co.uk/url?sa=i&r...nUitlFTYSfaauIozfdTsMquw&ust=1446504257218042

 

[ShaunCorbs]

here you go

but still if the 2 port (cylinder) has got power then that means the boiler should fire(cylinder calling for heat)

 

[stevetheplumber]

actually there two stats under the grey cover one is a resetable overheat usually a push button

 

[stevetheplumber]

actually theres three stats as the immersion probably has one as well but not relevant to boiler firing i would bet on it being the overheat stat as its probably wired as a break in the orange wire hence your getting live in the junction box on orange

 

[armyash]

Thanks for all the replies will update when I have been back.

 

[armyash]

Going back last job tomorrow. Great, need to be in and diagnose ASAP. Will head to the cylinder and check out the stat.