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ECO-button not lit on Worcester Bosch Greenstar 25 HE Combi

Your boiler is currently running in its energy-saving mode, meaning it will take slightly longer to provide hot water but uses less gas to keep the system warm.

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

Economy mode.

From this model's manual
Verified against the Worcester Boiler Rd 542i Combi 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

Locate the ECO button on the front control panelPress the button once to toggle between economy and standard modeObserve if the light illuminates to confirm the boiler is back in standard operating mode

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