What is this?
Electric radiators are standalone heating units that contain a heating element and often an oil-filled or ceramic core. They may be freestanding plug-in units or wall-mounted hardwired models. When they stop working, the problem is usually electrical — a blown fuse, failed element, or faulty thermostat.
Common causes
- Blown fuse in the plug or fused spur
- Internal thermostat fault
- Failed heating element
- Tripped MCB on the circuit
- Faulty internal wiring or thermal cutout tripped
- Electronic control board failure on smart radiators
Is it dangerous?
An electric radiator that has stopped working is not dangerous. If you notice a burning smell, unusual heat from the plug or cable, or discolouration around the socket or connection, unplug or isolate the radiator immediately.
Can I fix it myself?
Check the plug fuse (usually 13A) or the fuse in the fused spur if hardwired. Make sure the thermostat is turned up and any timer is set correctly. For plug-in models, try a different socket. Check that the radiator has not overheated and triggered an internal thermal cutout — let it cool and try again.
When to call an electrician
Call an electrician if the fuse blows again after replacement, if the circuit trips when the radiator is turned on, if the radiator is hardwired and you cannot check the fuse yourself, or if the problem is with a wall-mounted unit that requires removal to inspect.
What will an electrician do?
Test the supply reaching the radiator
Check the fused connection unit and wiring
Test the heating element and thermostat
Inspect internal wiring and thermal safety cutout
Replace faulty components or advise on replacement
Typical cost
£60 – £180
Fuse and connection repairs are inexpensive. Internal component replacement depends on the radiator model and availability of parts.
