Why is my wall panel heater cold but the flat still has power?

Because a panel heater often sits on its own fused spur or a local socket, separate from lighting and other rings. A blown spur fuse, failed thermostat, or tripped thermal cutout can kill that heater while hall lights and kitchen sockets still work. Check the spur neon and other outlets on the same circuit first.

What is a fused spur on a panel heater?

A fused spur is a switched connection unit with a cartridge fuse that feeds a hardwired panel heater instead of a plug. If the fuse blows, the heater goes cold even though nearby sockets may still be live. Repeated blown fuses mean stop and call an electrician rather than fitting a larger fuse.

Could a thermal cutout make a panel heater stop working?

Yes. Many panel heaters cut out if the air intake or outlet is blocked by curtains, furniture, or dust build-up. Clear the vents, let the unit cool, and follow the maker's reset guidance if there is one. If it cuts out again with clear airflow, book an electrician rather than bypassing the cutout.

Hardwired panel heater vs plug-in freestanding, does it change what I can check?

Yes. Freestanding units let you try another socket and inspect the plug fuse more easily. Hardwired wall panels need the fused spur and supply confirming; opening the heater or spur internals is not a DIY job for most homeowners or tenants. When in doubt, isolate and book an electrician.

Is a dead panel heater a landlord or tenant job in a UK rental?

It depends on the tenancy and whether the heater is hardwired as part of the fixed heating. Tenants should report a cold hardwired panel promptly and not open the wiring. Landlords usually arrange a competent electrician for fixed electrical heaters. Use Instant Quote to get a price either way - do not invent legal advice beyond reporting and safe isolation.

Does Tradehand cover electricians for a panel heater not working, and what's the £50 offer?

Use Instant Quote to get a price and find a local electrician for a panel heater that will not heat. £50 back on first booking when paid through Tradehand. The locked on-page guide remains Electrical Fault Finding £45–£60 / hour - confirm the cost for your property on quote, not as a fixed figure. Tradehand is free for homeowners; trades pay no monthly fee, just a flat 5% of invoices Tradehand collects.

Panel Heater Not Working

A panel heater not working usually means no heat from a wall-mounted or freestanding unit even when the room feels cold and the rest of the flat still has power. In UK flats and rentals that often shows up as a dead fused spur, a blown plug fuse on a freestanding heater, a thermostat that never calls for heat, or a thermal cutout that has tripped because dust blocked the air intake. Picture a rented bedroom in late September: the wall panel stays cold overnight, the tenant checks the spur neon is off, and nobody wants to open a hardwired heater with the supply still live. Confirm power at the spur or socket, check the thermostat and timer, clear blocked vents, and stop if you smell burning or see scorch marks - that is when you book an electrician.

Low risk · Updated 21 September 2026

What would yours cost?

We'll tell you the price for this, then find a local electrician to do it.

on your first booking

Get my instant quote

What's happening?

A panel heater not working is when a wall-mounted or freestanding electric panel heater produces little or no heat while other circuits in the home may still be fine. UK installs are often hardwired through a fused spur with a neon indicator, or plug-in freestanding units on a normal socket. The heater may click, show a light, or stay completely dead. Picture a neighbour in a purpose-built flat: the living-room panel stays cold after work, the spur switch neon is dark, hallway lights still work, and the landlord's first question is whether the fuse, thermostat, or element has failed. That pattern is a local panel heater fault or supply issue at the spur/socket, not a whole-house heating failure.

What usually causes it?

A blown fuse in the fused spur (hardwired wall panel) or in the plug (freestanding unit)
A thermostat set too low, stuck, or failed so it never calls for heat
A programmer or timer left off, or a failed timer module
A thermal cutout tripped because the air intake or outlet was blocked by curtains, dust, or furniture
A failed heating element inside an older panel heater
A loose terminal at the spur, heater terminal block, or plug
No power to that spur/socket because of a tripped MCB or a dead circuit (check other outlets on the same ring)

Is it dangerous?

A cold panel heater is usually inconvenient rather than immediately dangerous, but the underlying fault can be serious. Burning smells, scorch marks at the fused spur, a warm or discoloured faceplate, buzzing, or repeated blown fuses point to a connection or overload problem. Do not keep forcing a hardwired heater back on if the fuse blows again immediately. Never open a hardwired panel heater with the spur still live, and do not bypass a thermal cutout with tape or wire. If you smell burning, see smoke, or the spur feels hot, treat it as urgent and call an electrician - or 999 if there is smoke or flame.

Can I fix it myself?

Safe checks only, then stop. With dry hands: 1. Confirm whether only that panel heater is cold, or other heaters/sockets on the same circuit are dead too. 2. For a freestanding plug-in heater: try another known-good socket; check the plug fuse (common 13A) and replace only with the correct rating if you are competent to do so. 3. For a hardwired wall panel: check the fused spur neon/switch. If the spur is off or the fuse has blown once, leave further fuse work to someone competent unless you are sure of the correct fuse and the heater is isolated. 4. Check the thermostat and any timer/programmer are calling for heat. 5. Clear curtains, drying clothes, and dust from air intakes and outlets, then allow a thermal cutout to cool and reset if the maker's instructions say it will. 6. Do not dismantle a hardwired heater, do not bridge a thermal cutout, and do not keep fitting larger fuses. Leave diagnosis beyond these checks to a competent electrician, especially on rented or landlord-owned hardwired panels.

When should you call an electrician?

Call an electrician the same day if the panel heater stays cold after basic fuse, thermostat, and airflow checks, if the fused spur fuse blows again, or if you smell burning or see scorch marks at the spur or heater. Bring it forward if the spur faceplate is hot, discoloured, or buzzing, or if several heaters on one circuit have died together. Related ballpark already on this page: Electrical Fault Finding often £45–£60 / hour - confirm for your property on Instant Quote, not as a fixed price.

What will the electrician actually do?

Confirm whether the heater is hardwired on a fused spur or plug-in, and whether supply is present at the spur or socket
Isolate safely and test the fuse, spur, thermostat/timer circuit, and heater terminals
Check for a tripped thermal cutout, blocked airflow history, and element continuity where accessible
Identify a failed element or control versus a supply/wiring fault
Repair or replace the fused spur, connections, or advise repair versus replace on an aged unit
Retest before restoring the panel heater to service