Low
U on Ideal Logic Max Combi 2

Your boiler is currently in a manual service mode used for filling or venting the system and will not operate normally until this mode is exited.

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.

What the manual says

Manufacturer manual

Diverter Valve in mid-position for service

From this model's manual
Verified against the Ideal Logic Max Combi 2 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Press the 'Mode' or 'Back' button to exit the service menuTurn the boiler power off at the fused spur switch, wait 30 seconds, and turn it back onEnsure the selector dial is moved away from the service setting to 'Heating and Hot Water'

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