Horizontal cylinder, thermostat not operating.

[Dan Robinson]

Stat wired backwards.

 

[jeff the gasman]

Stat wired backwards.

That's what I said x

 

[andyjspark]

Stat is 25-65 degree it's is 100% wired correctly.

 

[Nozzle]

The hot water in your tank rises to the top. The water at the bottom being the coldest. Is there some way you can re-locate the thermowell? Or perhaps the cylinder has been installed incorrectly orientated so the thermowell is in the wrong place, adjacent to, or even worse below the primary coil.

Nozzle

 

[jeff the gasman]

If you are a sparky you need to get a suitably qualified G3 guy on site to determine the fault. No offence.
Look on you tube at Cylinder explosion.

 

[Dan Robinson]

Stat is 25-65 degree

Of course.

100% wired correctly.

Pictures of the inside of the stat are required then. It is acting as if it is wired through the satisfied terminals.

 

[andyjspark]

I was unhappy leaving it so have left them with just the immersion heating the water. I'm waiting on a call from Telford technical to see if they can shed any light on it. No offence taken, I'm aware of the dangers of unvented cylinders and have wired many over the years and seen enough DIY disasters to know to be cautious when offering advice.

 

[jeff the gasman]

I was unhappy leaving it so have left them with just the immersion heating the water. I'm waiting on a call from Telford technical to see if they can shed any light on it. No offence taken, I'm aware of the dangers of unvented cylinders and have wired many over the years and seen enough DIY disasters to know to be cautious when offering advice.

Good lad.

 

[andyjspark]

Aparanetly a de stratification pump needs to be fitted. I have no clue what this is but the plumber wasn't happy when he was told.

 

[jeff the gasman]

Aparanetly a de stratification pump needs to be fitted. I have no clue what this is but the plumber wasn't happy when he was told.

He didn't price for one. He should had RTFM.

 

[Nozzle]

Aparanetly a de stratification pump needs to be fitted. I have no clue what this is but the plumber wasn't happy when he was told.

Stratification = the opposite of natural circulation. The suggested pump would establish a flow past your primary coil so the water is a more consistent temperature throughout.

 

[Dan Robinson]

He should had RTFM.

Not one mentioned in the linky... think the plumber has been hard done by. Shyte cylinders anyway