E2 High
Your boiler is struggling to move water through the system, which is usually caused by trapped air or a blockage in the pipes.
Technical description: Poor circulation – try bleeding your radiators
Typical repair cost: £0-250 (including labour)
DIY fix possible
Check that the boiler pressure is between 1 and 1.5 barTurn off the heating and use a radiator key to bleed air from all radiatorsEnsure all radiator valves (TRVs) are fully openReset the boiler using the reset button
Protect yourself from future repair bills
A boiler cover plan would cover faults like E2 — no call-out fees, no surprises.
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Parts commonly replaced
- Circulation Pump
- Pressure Sensor
- Automatic Air Vent
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