Low
DEMAND LIGHT ONLY on Worcester Bosch 24i/28i Junior

Your boiler is correctly telling you that it has already reached the temperature you asked for and is simply waiting for the water to cool down before heating it up again.

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

It is normal to see only a demand light if the boiler is hot and the burner has temporarily shut off. If boiler is cool, suggests sensor or control board fault.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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