Electric showers rely on a high-power electrical supply and water flow to operate safely. If your shower has stopped working, the cause could be electrical, mechanical, or both.
Common Reasons why Electric Shower Not Working
Shower faults are often caused by supply or internal component issues.
- Shower breaker or RCBO tripped
- Faulty pull-cord isolator switch
- Internal heating element failure
- Low water pressure triggering safety cut-out
- Loose electrical connection
- Water damage inside the unit
Safe Checks You Can Carry Out
Only carry out checks that do not involve opening the unit.
- Check the consumer unit for a tripped shower breaker
- Confirm the isolator switch is fully on
- Check water pressure and shower head blockage
- Note whether the shower has power but no heat
For a full list of tools you can use, see our guide on best electrical tools for homeowners.
When to Call an Electrician
Shower circuits are high risk and should be handled by professionals.
- Breaker trips when shower is used
- Isolator switch feels hot or crackles
- Shower has no power and no visible trip
- Suspected internal electrical fault
Need an Electrician?
If this issue keeps happening or you’re unsure what’s causing it, a qualified electrician can safely diagnose and fix the problem. Electrical faults can worsen over time, so it’s best to get professional advice rather than risk damage or injury.
UK Electrical Safety Advice
Electrical faults can be dangerous. If you are unsure, always seek advice from a qualified electrician. This guidance is for general information only and does not replace a professional inspection.
For general guidance on household electrics, see our electrical advice for UK homes.
This issue is one of several common electrical problems found in UK homes. You can view other related electrical faults on our Common Electrical Problems (UK) page.