New house - central heating not working :(

simondyntDBeK · 26 Sep 2020

Hi all.

Before I call out the landlord I wondered if I might have missed anything.

Three year old new build - been here a few months. Turned central heating on for first time today but radiators all cold. Hot water is fine.

Anything else I might have missed? Cheers!

Elkato531 · 26 Sep 2020

Thermostat?

simondyntDBeK · 26 Sep 2020

Elkato531 said:
Thermostat?

*******s! Of course! Cheers mate!

simondyntDBeK · 26 Sep 2020

Hmmm I’m still having bother. Have an upstairs and downstairs thermostat. Both on full. Upstairs ok but downstairs radiators still cold

Any ideas?

Harry Bloomfield · 26 Sep 2020

simondyntDBeK said:
Hmmm I’m still having bother. Have an upstairs and downstairs thermostat. Both on full. Upstairs ok but downstairs radiators still cold Any ideas?

A stuck 2 or 3 port valve?

oldbutnotdead · 26 Sep 2020

Or pump stuck (can you hear it whirring & maybe water/air noises in the pipes). Have downstairs rads been bled?

CBW · 26 Sep 2020

Photo of said thermostat on full? Photo of motorised valve?

simondyntDBeK · 26 Sep 2020

Chris_W said:
Photo of said thermostat on full? Photo of motorised valve?

I think it may be the thermostat? When I turn the upstairs one the boiler kicks in but if I turn that off and then turn the downstairs one up the boiler does nothing

oldbutnotdead · 26 Sep 2020

Quite likely the motorised valve- if you've got a friend get them to set downstairs stat to call for heat while you're at the valve- it should whirr a bit & the manual lever should hardly resist at all when you move it.
EDIT If it doesn't whirr & lever resists movement then you can open the valve manually (push lever across all the way then push it up so as the spring returns the lever catches in that notch.). That should give you heat on the ground floor (while upstairs is calling for heat) and if you're lucky will free off the valve

Harry Bloomfield · 26 Sep 2020

simondyntDBeK said:
View attachment 205982 View attachment 205983

I think it may be the thermostat? When I turn the upstairs one the boiler kicks in but if I turn that off and then turn the downstairs one up the boiler does nothing

Is that a clicky (mechanical) stat, or an electronic one needing batteries?

If a mechanical one, is it clicking as you move it end to end?

If it clicks, that usually suggests valve failure or stuck. If battery, try new battery and resync.

CBW · 26 Sep 2020

Harry Bloomfield said:
Is that a clicky (mechanical) stat, or an electronic one needing batteries?

If a mechanical one, is it clicking as you move it end to end?

If it clicks, that usually suggests valve failure or stuck. If battery, try new battery and resync.

It’s a mechanical one, t6360b. I’ve had some of these fail from new.

@simondyntDBeK do you have a multimeter or two pole voltage tester?

oldbutnotdead · 26 Sep 2020

Looking at the pic of the stat it looks oldschool clicky type and I'm wondering if the knob is connected to the innards- it shouldn't really go that far over

simondyntDBeK · 26 Sep 2020

Plumber just been round - here's your answer folks.

It's a combi boiler with a two zone heating system so hot water is always available apparently and the control below is just badly labelled. The left hand side is actually the upstairs radiators and the right hand side (labelled hot water) is actually the downstairs radiators.

FFS.

Now labelled correctly! Thanks everyone for your input.

CBW · 26 Sep 2020

Sorry, I should have seen that it was a combi from one of your photos, just overlooked I expect.

Glad you’re sorted anyway.

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New house - central heating not working :(

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