An electric boiler fault can sit in the appliance, controls, circulation or electrical supply. We test the system in a logical order before recommending parts or replacement.
We start with the symptoms and test the relevant electrical, control and heating components. You receive a clear explanation of what has failed and the sensible options available.
01Supply, protective-device and control testing
02Pump, sensor, valve and thermostat diagnosis
03Element and insulation-resistance testing where applicable
04Written repair or replacement options
Get the right repair visit for your electric boiler
No heating, no hot water or both?
Tell us which part of the system has stopped working. An electric boiler may heat radiators while a separate immersion heats the cylinder, so a hot-water problem does not necessarily require boiler parts. Send the make, model and error code with your postcode.
What happens at the appointment?
We discuss the symptoms, test the relevant supply and controls, and inspect the appliance and connected heating system. We explain the fault and proposed work before proceeding with a repair. Parts availability and the condition of the appliance determine whether completion is possible on the first visit.
Repair costs and replacement decisions
Ask for the diagnostic charge and what it covers when booking. A repair quotation depends on the component, access and testing required. If parts are obsolete or the appliance has several defects, we can provide a separate replacement quotation so you can compare the options.
Before you call
Useful checks without opening the boiler.
These observations help us prepare the right visit. Stop if there is a burning smell, water close to electrics or repeated tripping.
01
Record what the boiler shows
Photograph the display, fault code and rating label before switching anything off.
02
Check the controls
Confirm the programmer is calling for heat and the thermostat setting has not changed after a power interruption.
03
Look at system pressure
Note the displayed pressure on a wet system and compare it with the manufacturer’s user instructions. Do not remove covers.
04
Do not repeatedly reset a trip
If the circuit or RCD trips again, leave it off and arrange electrical testing.
Electrical smell, sparking, smoke or water entering electrical parts?
Switch the affected equipment off only if it is safe to do so. Keep clear and arrange urgent professional help; call 999 where there is fire or immediate danger.
Fault patterns
The symptom helps decide where testing starts.
Power but no heat
Controls, demand signal, safety cut-outs, sensors, elements and circulation all need considering.
Heating but no hot water
The hot-water arrangement, cylinder, valves and controls may be separate from the space-heating fault.
Boiler trips the electrics
Insulation breakdown, wiring damage, moisture or a failed component require proper electrical measurements.
Cold or noisy radiators
Poor circulation, air, system pressure, pump or water quality may be responsible rather than the boiler itself.
01Triage
Postcode, make, model, symptoms and photographs.
02Test
Supply, controls, appliance and connected wet system.
03Explain
Fault found, repair options and parts position.
04Complete
Repair or a separate written replacement quotation.
Common questions
Useful answers
Can an electric boiler be repaired?
Often, yes. Controls, pumps, valves, sensors and electrical components can fail independently. A proper test establishes whether the fault is repairable and whether parts are available.
Will you recommend replacement straight away?
No. We explain the fault, likely repair route and condition of the wider system before discussing replacement.
Why is my electric boiler tripping the electrics?
Possible causes include an element fault, damaged wiring, a control component or an unsuitable circuit. Leave a repeatedly tripping circuit off and arrange testing rather than repeatedly resetting it.
Local electric boiler help
Electric boiler engineers across Berkshire.
Choose your town for local repair, installation and servicing information. Appointments are arranged from our Reading base.
Send your postcode and system details. We will confirm availability, the visit charge and the next step. Parts and additional work depend on the fault and agreed scope.