A1 281 High
Your boiler's internal pump is either jammed or struggling to move water because there is too much trapped air in the system.
Technical description: Pump stuck or running with air in the system
Typical repair cost: £120-£350 (including labour)
DIY fix possible
Check your boiler pressure gauge and top it up to 1.5 bar if it is too lowBleed all of your radiators to remove trapped airGently restart the boiler using the reset button
Protect yourself from future repair bills
A boiler cover plan would cover faults like A1 281 — no call-out fees, no surprises.
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Parts commonly replaced
- Circulating Pump
- Automatic Air Vent
- Pump Capacitor
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