Low
5 pulses on Worcester Bosch Junior 28i

Your boiler has been left in a manual testing mode after a recent service and needs to be switched back to its normal operating 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 service mode switch (often a small dial or toggle) on the control panel.Turn the service dial fully anti-clockwise to the 'Auto' or 'Normal' position.Press the reset button if the light continues to pulse.

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