Low
5 pulses on Worcester Bosch Junior 24i

Your boiler has been left in a manual testing mode, usually used by engineers during a service, and needs to be returned to its normal setting.

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

Check service mode switch is in max position

DIY fix possible

Locate the vertical selector switch on the front control panel.Ensure the switch is turned away from the 'Max' or 'Service' test position.Turn the boiler power off and back on again to reset the indicator light.

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