Electric shower has stopped working completely
Check the steps below first — if you\'re not confident, get it fixed safely today.
Find a Gas Safe engineer near you →⚠️ Electric showers combine water and mains electricity. Always isolate at the consumer unit before opening the shower unit. All wiring work must comply with Part P Building Regulations and be carried out by a qualified electrician.
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Most likely cause & what to check
Check the dedicated isolator switch — this is a double-pole switch (all contacts break simultaneously) fitted outside the bathroom. Ensure it is ON.
Go to the consumer unit and check the MCB (miniature circuit breaker) for the shower circuit has not tripped. If it has tripped, reset it once and test the shower.
If the MCB trips again immediately, there is an electrical fault — do not reset it again. Call an electrician.
If the shower powers on but no water comes out, check the cold water supply to the shower. Electric showers are fed from the mains cold supply — check there is mains pressure at the point of connection (typically a 15mm pipe).
If the shower turns on but produces no heat, the thermal cut-out may have tripped. Locate the small reset button on the unit body (some require the front cover to be removed — isolate first). Press it firmly.
If resetting the thermal cut-out does not restore heat, the heating element has failed. A new element is £15–£50 but the installation is Part P notifiable electrical work.
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