Electric Shower Spares
We stock electric shower spares and replacement electric shower parts for various UK electric shower brands. Electric showers heat cold mains water on the way through, and the parts that fail most are heating elements, flow valves, pressure switches and PCBs. Replacing the failed component fixes the shower without changing the unit on the wall.
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ELECTRIC SHOWER SPARES | BUYING GUIDE
Common Electric Shower Faults
Symptoms point to specific components. Diagnosing the fault by what the shower is doing usually gets to the right replacement faster than guessing by age or appearance.
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Shower has no power at all
Check the consumer-unit RCD, the pull-cord isolator and the unit's internal fuse. If supply is present at the unit, the PCB or the cable run to the element is the next suspect.
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Powers on but will not heat
Heating element burnt out, thermal cut-out tripped, PCB fault or thermistor failed. The most common cause on older units in hard-water areas is a limescaled element.
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Stops mid-use and will not restart
Thermal cut-out tripped from overheating, often because the flow has dropped below the safe minimum. Check the inlet filter and the flow valve for blockages first.
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Low pressure or weak flow
Blocked inlet filter, scaled flow valve or worn pressure switch. The handset and hose can also restrict flow if blocked. Shower heads and shower hoses are easy first checks before opening the unit.
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Leaks from underneath the unit
Heat exchanger split, internal hose perished or solenoid valve seal failed. A leaking electric shower needs the power isolated immediately and the unit stripped to find the source.
Types of Electric Shower Spares
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Heating elements
The component that heats the water as it flows through. Brand and rating-specific (8.5kW, 9.5kW, 10.5kW), and rarely interchangeable between units. Replacement is the standard fix for a unit that powers on but does not heat.
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PCBs and microswitches
The control board and the small switches that detect flow and start the heating cycle. PCB faults often present as intermittent operation, refusal to start, or LEDs failing on the unit's control panel.
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Flow valves and solenoids
The internal valve that regulates water flow through the heating element. Solenoid-controlled on most modern units. Failure causes sudden flow drop, intermittent operation or no flow at all when the temperature dial is turned.
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Pressure switches
Detect adequate water flow before allowing the element to switch on. Worn pressure switches stop the unit firing or cause it to cut out under normal flow. A specific brand-and-model match is needed.
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Control knobs and cover assemblies
External trim that customers can fit themselves with no tools beyond a screwdriver. Often replaced for cosmetic reasons or after the original has snapped at the spindle. Brand-specific shape and shaft fit.
Identifying Your Electrical Shower Unit
Open the cover of the electric shower (power must be isolated first). Inside, you should find a data plate or sticker showing the brand, model name, model number, kilowatt rating and often the manufacture date. These five details together identify almost every UK electric shower made in the last twenty years.
If the data plate has worn off or peeled, photograph the inside of the unit (with the power off) and the front of the casing. Brand styling and the layout of the internal components is often enough to identify the unit even without a model number. Send the photos to our team and we will confirm the right spare. Related parts often replaced alongside an electric shower are grouped together in our shower spares hub, with brand-specific stock catalogued in our manufacturer directory.
Electric Shower Spare FAQs
What goes wrong on an electric shower most often?
Heating element failure is the single most common fault, especially on units in hard-water areas where limescale builds up around the element. PCB faults, blocked or scaled flow valves and worn pressure switches are the other frequent failures. Most issues are individual component failures rather than whole-unit faults, so a replacement part usually restores the shower.
Can I replace electric shower parts myself?
Some parts (control knobs, cover assemblies, external trim) are straightforward homeowner replacements. Internal electrical parts (heating element, PCB, solenoid) involve mains-voltage wiring and are notifiable work in some cases under UK Building Regulations. A competent DIYer can fit the parts; the wiring connection should be checked or completed by a qualified electrician if you are not confident with electrical work.
Are electric shower spares interchangeable across brands?
Almost never. Electric showers from different brands use proprietary heating elements, PCBs and flow valves with brand-specific shapes, fixings and electrical connections. Galaxy parts do not fit Triton; Mira parts do not fit Redring. Identify the brand and model on the data plate inside the unit before ordering.
How long does an electric shower last?
Typical service life is eight to twelve years with regular use, shorter in hard-water areas. Heating elements are the limiting factor on most units. Replacing the element extends the unit's life by another five to eight years in most cases, provided the rest of the body is sound.
Do you supply spares for older Galaxy and MX showers?
Yes. Older Galaxy and MX models are some of the most-asked-about discontinued ranges, and we hold stock of the elements, PCBs and flow valves for many of those units. Older spares run out over time, so if your shower is more than fifteen years old, contact us with the model and serial number to confirm availability before assuming a part is on the shelf.
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