1p2 High
Your boiler is struggling to move water around the system properly, which is causing it to overheat and shut down for safety.
Technical description: All Boilers
Typical repair cost: £120-£350 (including labour)
DIY fix possible
Check that your system pressure is between 1 and 1.5 bar on the pressure gauge.Ensure all radiator valves are fully open to allow water to flow.Try bleeding your radiators to remove trapped air that might be blocking circulation.
Protect yourself from future repair bills
A boiler cover plan would cover faults like 1p2 — no call-out fees, no surprises.
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Parts commonly replaced
- Circulation Pump
- Main Heat Exchanger
- Flow/Return Thermistors
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