Electric Shower Not Heating
The electric shower runs but the water stays cold or barely warm, even on the highest setting.
What Is Causing This?
- 1Failed heating element inside the shower unit
- 2Tripped thermal cut-out switch
- 3Low water flow rate reducing heating effectiveness
How Urgent Is This?
This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.
What Needs to Be Done
An electrician will test the shower unit, check the heating element, thermal switch, and supply cable. They may need to replace the shower unit entirely if the element has failed.
How Much Will It Cost?
National average estimate
Labour: £512 – £1,090 | Materials: £144 – £450
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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.
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How to Prevent This
Descale the shower head regularly. Ensure the inlet filter is clear. Do not set the flow rate higher than the unit can heat effectively.
Related Problems
Hot water taps run cold or lukewarm despite the boiler or immersion heater being switched on.
A circuit breaker in the consumer unit keeps tripping, cutting power to part or all of the house.
Water comes out slowly from taps or the shower, making everyday tasks frustrating.
Other Electrician Problems
Lights flicker, dim, or flash intermittently, sometimes across multiple rooms.
A circuit breaker in the consumer unit keeps tripping, cutting power to part or all of the house.
One or more plug sockets have no power, even though the rest of the room works fine.
A smell of burning plastic or scorching coming from a socket, sometimes with visible discolouration.