Low
i11 on Worcester Bosch Greenstar Heatslave II

This code is simply an information display, not a fault, showing you the current temperature of the hot water flowing through your system.

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

DHW flow temperature - Current DHW flow temperature displayed in real time (rounded to 0.5°C units).

Engineer required

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

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