Low
1-d4 on Worcester Bosch Greenstar 8000 Life System

Your boiler is struggling to communicate with your solar water heating system, which may be affecting how your water is warmed by the sun.

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

Solar fault - Is only displayed, if a solar module is connected.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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