Low
ERR>07 on Alpha E-Tec Plus 28

Your boiler is currently in a manual testing mode used by engineers to check emissions, which is not an actual fault.

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

Chimney Sweep Mode active (this is not a fault; it indicates the boiler is operating at a fixed output)

DIY fix possible

Locate the 'Reset' or 'Mode' button on your boiler's control panelPress and hold the button for 3-5 secondsWait for the display to return to the normal temperature reading or standby screen

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