Light off Low
Your boiler is currently sitting in standby mode because it hasn't received a signal from your thermostat or timer to start heating.
Technical description: No boiler demand
Typical repair cost: £0-120 (including labour)
DIY fix possible
Check that your room thermostat is turned up higher than the current room temperature.Ensure your programmer or heating timer is set to 'ON' or 'Auto'.Replace the batteries in your wireless wall thermostat if the screen is blank.
Protect yourself from future repair bills
A boiler cover plan would cover faults like Light off — no call-out fees, no surprises.
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Parts commonly replaced
- Room thermostat
- External programmer
- Wireless receiver
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