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Central Heating

One radiator not warming up

Anonymous user 23/02/2024 - 3.51 PM

Hello I have a vented system (gravity fed) One of the radiators in my house isn't warming up, this is the radiator which is the furthest away from the boiler. I have got the below things done but still the radiator isn't working. 1. Power flush 2. Replaced the entire radiator and the valves 3. Changed the central heating pump 4. Balanced the system by switching off other radiators to see if this one is warmed up, but no luck. Is there anything you can suggest that could be causing the radiator not warm up? I would really like to get this issue sorted. Thank you for support!

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5 Answers

HGM Trowbridge

No reviews yet

Trowbridge
You have to switch off all radiators apart from the 1 that's not working & bleed it then switch them all on 1 by 1 try this
Answered21 January 2023
2

Trevor Messenger Plumbing and Heating

Rating: 4.9 out of 5
Castle Cary
Hi, it could be an air lock but doubt it, more than likely a blockage in pipework, Trevor
Answered4 February 2023
2

APHTS

Rating: 5 out of 5
Banbury
Sounds like you’ve tried all the possible attempts it could be. The only other reasons it could be from my knowledge is that there are 2 flows or 2 returns going to that radiator in which case the rad wouldn’t warm up! If it was definitely flushed through that radiator, it shouldn’t be blocked. Manifolds can block should it be coming off one of these. Thanks, Anton
Answered4 February 2023
1

jt property services

Rating: 5 out of 5
Newcastle Upon Tyne
Probably a blockage in the pipes
Answered4 February 2023
1

Flow mechanics Ltd

Rating: 5 out of 5
Palmers Green, London
If you tried the previous advise and it’s not working, there may be an airlock in the system, it’s not uncommon for gravity fed system. Turn the radiator off from both valves remove either the plug or vent from radiator and connect a hose if possible to the radiator and open both valves fully let it flow through, I find a clear hose works best to visually see bubbles come trough. If you still struggle empty F&E tank and backfill the system with hose connected to mains via drain cock.
Answered4 February 2023
1