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Please help hall radiator not getting warm

allywill
allywill
in General Questions & Topics

Please can someone help. I have got no response from tado chat. We have a radiator in the hall that has no tvr fitted. There is a smart thermostat on the wall that should act as the temp control for that radiator. We have the wireless thing in the kitchen and tvrs on all other radiators. All the radiators call for heat separately and get warm except the hall one. This is showing on the app as calling for heat but it is not getting warm. It used to work fine. I noticed it had stopped working today but looking at the graph it possibly wasn’t working yesterday either. I have checked the settings on the smart thermostat and they seems to be correct. What can have gone wrong? The boiler did fault this morning as the condenser pipe was frozen, so I had to reset the boiler but surely this shouldn’t have done anything ? I don’t even know what to try

Comments

  • johnnyp78
    johnnyp78 ✭✭✭
    If your hall radiator has got no trv on it, it should be heating up whenever any of your trvs call for heat. If it’s not coming on at all that sounds like a plumbing issue. Maybe there’s an airlock or the flow pipe is blocked.
  • Catcher
    Catcher ✭

    Is the boiler burner on because a frozen condenser pipe will stop the boiler. I have similar situation to yours in my hall (no SRVs, but that's another story) and the only things that will stop that radiator heating is temp setting lower than hall ambient, boiler failure, assuming you have no valves between boiler and rad or a room thermostat failure. Is yours wireless or wired?

  • DM932187
    DM932187 ✭✭✭

    As @johnnyp78 says, likely a plumbing issue and nothing to do with tado.

    Have you tried bleeding the hall rad, to see if there's air in it?

    If you have, then try closing all rads with TRVs and turning up heating in hall. That may force flow to that rad and clear a minor airlock.

    If that doesn't work, identify your lockshield valve on the hall rad (the one that doesn't turn by hand). Remove the cover and turn it anti-clockwise by a quarter turn. That will increase the flow to that rad. If that doesn't work, repeat, but make a note of how many times you've made quarter turns so you can revert it later if it doesn't work.

    If opening the lockshield on the hall doesn't work, and you're confident to do so, close the lockshields on all the other rads (turning clockwise). make a note of how many turns you make on each one, so you can revert to rebalance the system afterwards. That should force all the flow to the hall rad.

    If you get the rad working, rebalance everything back again (reversing what you did above) and you should have cleared any airlock. If it doesn't work, then as @Catcher says, it possibly points to the boiler (although the other rads would be out too), or something else that requires a pro to take a look.

    If you mess up the rebalancing (we've all done it), then good guides on heatgeek.com

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