Electric Shower Not Working?
Diagnose the problem and know when to call a professional. Electric showers involve high power and water - safety comes first.
Safe DIY Checks First
Before calling an electrician, try these safe checks. Never open the shower unit or touch any electrical connections.
Is the shower isolator switched on?
Check the pull cord or wall switch is in the 'on' position
Has the MCB tripped?
Check your consumer unit for a tripped breaker (middle or down position)
Has the RCD tripped?
Reset the RCD - if it trips again immediately, don't use the shower
Is there low water pressure?
Check other taps - low pressure affects shower performance
Common Symptoms & Causes
| Symptom | Likely Cause | Action |
|---|---|---|
| No power at all | Tripped MCB/RCD, faulty isolator, or wiring issue | Check fuse board first |
| Cold water only | Faulty heating element or thermal cut-out | Needs electrician |
| Water too hot/cold | Faulty thermostat or PRD valve | Stop using - scald risk |
| Shower keeps cutting out | Overheating, low water pressure, or loose connections | Needs inspection |
| Water pressure low | Blocked head, faulty solenoid, or inlet filter clogged | Clean filters first |
| Light flashing/error codes | Depends on brand - usually thermostat or element | Check manual then call |
Call an Electrician Immediately If:
Our Electric Shower Services
Diagnosis & Repair
Fast fault-finding to identify the exact problem. Many issues can be repaired same-day.
From £80
Element Replacement
If your shower isn't heating properly, we can replace the heating element quickly.
£150 - £280
New Installation
Full installation with new dedicated circuit. All leading brands supplied and fitted.
£350 - £550
Frequently Asked Questions
Why does my electric shower keep tripping the RCD?
An electric shower tripping the RCD usually indicates an earth fault within the heating element or wiring. Water ingress, a failing element, or damaged cable insulation are common causes. This is a safety issue - the RCD is protecting you from electric shock. Don't keep resetting it - call an electrician.
Can I repair an electric shower myself?
No. Electric showers operate at high power (typically 8-10.5kW) and involve a combination of electricity and water. Any repair work must be carried out by a qualified electrician. Attempting DIY repairs is extremely dangerous and potentially fatal.
How much does it cost to fix an electric shower?
Repair costs typically range from £80-£180 for common issues. If the heating element has failed (a common fault), replacement is often more economical than repair - element replacement costs £150-£280. A new shower installation is £350-£550.
Why is my electric shower only giving lukewarm water?
This usually indicates a failing heating element or thermal cut-out that's activating too early. It can also happen if the shower is undersized for your water pressure. The heating element is the most likely culprit and will need professional replacement.
How long do electric showers last?
A quality electric shower typically lasts 8-15 years depending on water hardness and usage. Hard water areas like parts of Devon can reduce lifespan due to limescale buildup. Regular descaling of the shower head can help prolong life.
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