Boiler displays E14, often associated with rapid temperature rise and short cycling.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety first: Turn off power and allow the boiler to cool. Water may be hot under pressure.
User-level checks:
- Bleed radiators to remove air and ensure all valves are open.
- Check system pressure and top up if low.
Technical checks (qualified personnel):
- Check if the pump is receiving voltage when there is a heat demand.
- Remove the pump head and inspect the impeller; free a stuck rotor using a screwdriver on the pump shaft if possible.
- Clean or replace any system filter or dirt separator in the return line.
- If the pump does not run despite correct voltage, replace the circulation pump.
After restoring circulation, purge air from the boiler and system, then verify stable temperature rise during operation.
Repair Difficulty
Required Part
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