203 Low
Your boiler is currently sitting in standby mode because it has reached its target temperature and is waiting for a new request for heating or hot water.
Technical description: The boiler is on standby
Typical repair cost: £0 (including labour)
DIY fix possible
Check if your room thermostat or programmer is set to a temperature higher than the current room temperature.Ensure the heating and hot water schedules are set to 'On' or 'Auto'.Wait a few minutes to see if the boiler fires up once the system temperature drops slightly.
Protect yourself from future repair bills
A boiler cover plan would cover faults like 203 — no call-out fees, no surprises.
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