Underfloor heating, one room not heating up

[Barley35]

Where in the world is this? One of us might be in your area and be willing to have a look.

Armagh, N.Ireland
If anyone is close by and and willing I'll be happy for your expertise.

The original installer of the UFH system asked for this to be done 3 years ago as him and the electrician started to blame each other for the issue not the latest firm to come out

Thanks again

I always take the view that any competent heating engineer will be totally capable of wiring up any heating system.

If they cannot do wiring then there is no expectation that they will ever be able to diagnose faults as this requires an understanding of electrical systems.

Tony

I never employed them, the main contractor of the build brought them in. Wish now they didn't

 

[jackthom]

Still not clear about this. Have you recently removed the actuator for 24 hours, or as long as it takes, to confirm the room does still get some heat?

 

[Barley35]

Still not clear about this. Have you recently removed the actuator for 24 hours, or as long as it takes, to confirm the room does still get some heat?

-No heat in room told to get actuator changed
-Still no heat in room so I removed actuator and and heat went into room
-told then the thermostat must be faulty so had to change that
- once thermostat changed heat stop going to room with actuator on or off
- the loop was purged and a new boiler installed last Saturday, could feel minimal heat coming from floor by late afternoon but went back to no heat by evening even though heating ON all Sunday, and all week...still nothing.

 

[MJGas]

Could you take a picture of the flow meters on the mainfold?

 

[Barley35]

 

[Barley35]

 

[MJGas]

Im taking it the problem is the 6th one from the left?

 

[Barley35]

Yes that's the one

 

[Dan Robinson]

Those flow rates look all over the place.

 

[jackthom]

Does the red actuator indicator show the valve to be open for long periods during the day?

 

[Barley35]

I think your talking about the wee red valve on top on the actuator head, if so Yes, when the heating is running it is always up.

 

[Dan Robinson]

They often stick though.

 

[jackthom]

They often stick though.

Is that in the same way TRV pins stick or is it usually more to do with the actuator?

 

[Dan Robinson]

The little red indicators in the top rail are what I was referring too.

The actuators are pretty reliable, as are the pins in my experience.

 

[Barley35]

Not sure if this makes any difference. I switched all upstair zones off except the room not heating. As you can see actuator pin up. One pipe is hotter than other.