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Orange Light on Glow-worm Swift Flow 100

Your boiler is receiving electrical power and is currently switched on or ready to operate.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

MAINS

What causes this fault?

The orange light indicates that the boiler is receiving a live electrical supply and the main switch is set to the 'on' position. This is a normal operational status and does not represent a physical failure or a broken part. If your boiler is not providing heating despite this light being on, it usually means the system is simply waiting for a command from your thermostat or timer.

DIY fix possible

Check that the power switch on the wall or fused spur is turned onEnsure your room thermostat is turned up high enough to call for heatCheck if any timers or programmers are set to an 'ON' period

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