305 Low
Your boiler is currently focused on providing hot water to your taps and will return to heating your radiators once you turn the hot water off.
Technical description: The boiler is waiting for domestic hot water (DHW) operation to end
Typical repair cost: £0-120 (including labour)
DIY fix possible
Check that all hot water taps and showers are fully turned offEnsure there are no dripping taps or leaking hot water pipesWait a few minutes to see if the code clears once the hot water demand stops
Protect yourself from future repair bills
A boiler cover plan would cover faults like 305 — no call-out fees, no surprises.
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Parts commonly replaced
- DHW Flow Sensor
- Three-way Valve
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