Low Warning
55146 on Worcester Bosch Greenstar CDi Compact

Your boiler's built-in solar water heating software has been activated, but the solar system hasn't been set up or configured correctly for use.

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 system is not yet in operation. Solar system not yet commissioned

What causes this fault?

This fault occurs because the boiler's internal computer has been told it is connected to a solar thermal system, but it cannot detect the signals it needs to operate it. The most common reason is that the solar function was accidentally switched on during a service or installation without the necessary solar sensors and controls actually being fitted.

Engineer required

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

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