Low
i7 on Worcester Bosch Greenstar Heatslave II

Your boiler is displaying its current target heating temperature rather than an error message, which is normal operation while the system is waiting for a signal to provide heat.

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

CH flow temperature set point - This is the temperature set point for the primary flow from the main heat exchanger. This will be zero during CH demand.

Engineer required

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

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