This week, our team at Complete Heat Solutions in Whitley Bay and Tynemouth has started receiving calls from homeowners noticing that some or all of their radiators aren’t heating up after switching on their heating for the first time this season. While we were able to guide some customers over the phone with simple checks, others required a professional visit to carry out repairs or radiator balancing to get their heating systems running efficiently again.
Why do radiators stop heating after summer?
During the summer, your central heating system is often left idle for months. When you switch it back on, trapped air, stuck valves, or low boiler pressure can prevent radiators from warming up. These are usually minor issues, but ignoring them could lead to bigger problems.
Common Checks You Can Do at Home
1. Check Your Thermostat Settings
Make sure your thermostat is set to heating mode, not just hot water.
Increase the temperature a few degrees above room temperature to test the system.
2. Bleed Your Radiators
Cold spots at the top of the radiator usually mean trapped air.
Use a radiator key to release air until water flows steadily.
Always have a cloth handy to catch drips.
3. Check Your Boiler Pressure
Look at the gauge on the front of your boiler.
Ideal pressure is usually between 1.0 and 1.5 bar.
If it’s low, top it up using the filling loop as per your boiler manual.
4. Test Radiator Valves
Ensure both the thermostatic valve (TRV) and lockshield valve are open.
Sometimes valves get stuck after months of not being used — gently turn them to loosen.
5. Check the Boiler Display for Error Codes
Modern boilers display error codes if something isn’t working.
Refer to your boiler manual, or call us if unsure.
When to Call a Heating Engineer
If you’ve tried the checks above and your radiators still aren’t heating:
There may be a circulation pump fault, sludge build-up, or a system imbalance.
These require professional tools and knowledge to fix safely.
At Complete Heat Solutions in Whitley Bay, we have over 40 years of hands-on experience in keeping heating systems running efficiently. Whether it’s a simple repair or a full boiler service, our Gas Safe engineers are here to help.
FAQs
Q: Why are only some of my radiators heating up?
A: This could be due to trapped air, closed valves, or the system needing balancing.
Q: My boiler fires up but radiators stay cold – what does this mean?
A: It may be a circulation issue (pump not working) or sludge in the system. Best to call a professional.
Q: Should I get my boiler serviced before winter?
A: Yes — an annual boiler service ensures safety, efficiency, and helps avoid unexpected breakdowns when you need heating most.
Final Tip
Don’t wait until the first freezing night to switch your heating on — test your system in September or early October. That way, any problems can be fixed before the cold weather truly arrives.
👉 If you’re in Whitley Bay, Tynemouth, or the surrounding areas, call Complete Heat Solutions today on 07963 320789 or use our contact form to book your boiler check or radiator repair.
