EE1 High
Your boiler has sensed a blockage or a pump failure that is stopping water from moving through the system properly.
Technical description: High pressure – circulating pump failure orcircuit air locked
Typical repair cost: £180-350 (including labour)
DIY fix possible
Check that your radiator valves are openBleed your radiators to remove trapped airEnsure the system pressure gauge is within the correct range (usually 1.0 to 1.5 bar)
Protect yourself from future repair bills
A boiler cover plan would cover faults like EE1 — no call-out fees, no surprises.
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Parts commonly replaced
- Circulating Pump
- Expansion Vessel
- Automatic Air Vent
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