Low
18 on Baxi EcoBlue Heat

Your boiler has switched into a special solar heating mode, which is usually a settings error rather than a mechanical breakdown.

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

alternates with Solar plant operating mode

From this model's manual
Verified against the Baxi Ecoblue Heat 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 and hold the Reset button for 5 seconds.Turn the power to the boiler off at the fused spur switch, wait 30 seconds, and turn it back on.Check if the boiler controls have been accidentally set to Solar Mode in the user menu.

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