265 Low
Your boiler is temporarily reducing its power because it is producing more heat than your radiators can currently take away.
Technical description: The boiler is waiting in response to a heat demand – the boiler regularly switches to partial load
Typical repair cost: £0-120 (including labour)
DIY fix possible
Ensure at least two or three radiators have their valves fully openCheck that your thermostatic radiator valves (TRVs) are not all set to 'zero' or 'off'Verify that the central heating pump is running and not stuck
Protect yourself from future repair bills
A boiler cover plan would cover faults like 265 — no call-out fees, no surprises.
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Parts commonly replaced
- Circulation pump
- Bypass valve
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