Polypie - 3 out of 4 zones not working

[Stormingjock]

Could really do with some advice please. Just moved into a new house with polypipe underfloor heating in 3 out of 4 rooms but only 1 room is getting warm. I've taken a picture of the manifold and it's clear that there is an issue but how do I fix this?

 

[SimonG]

Airlock?

Balancing?

Muck in system?

 

[village idiot]

Second from left on your picture seems ok, but the other three are not? Could be the air hasn't been properly bled from the system?

 

[Stormingjock]

Yes, that's correct. This is the only pipe that's got any hot water flowing through it. Concerned that the temp gauge is off the charts. Can I bleed the system myself or best leave it to the installer? Not come across this system before.

 

[village idiot]

My advice is that you get someone in to do it for you. Yes, you can do it yourself but with winter approaching, I'd say let someone else sort it out for you.

 

[SimonG]

Good spot from VI. Could be thermostat or wiring.

 

[Stormingjock]

Just checked the electrics as per the pic, assume this means it's a wiring problem with only the second one in indicating its working.

 

[lame plumber]

have you turned the room stat on in the 3 cold rooms?

 

[gassafe]

For a temporary measure you could unscrew the thermostat head which would allow heating to flow down the cold circuits when it's operating!

Looks like room thermostats not opening the valves.

 

[kozak1968]

I think polyplumb heads push down to open. You need to get the installer back to check. It does appear the roomstats are not turned up or are in frost mode.

 

[Ch4 plumbing]

Id make sure the blending valve is down at around 45 degrees, if the U/F gets too hot you risk damaging the flooring above it!

If the room stats are R/F which Polypipe do use then check the batteries as the power no heat!

 

[Chalked]

It's an electrical problem. Only the 1 zone is being activated. The red lights on the right hand box should corespond with each head on the manifold.