Low
8/2/4 on Worcester Bosch GB162

Your boiler's control panel is looking for a remote thermostat that isn't connected, even though it is currently trying to run a frost protection program.

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

RC35-HK2 remote control. No remote control assigned, although frost protection type “FROST” has been set.

From this model's manual
Verified against the Worcester Bosch Gb162 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

Locate the RC35 remote control unit or the boiler's main internal menu.Navigate to the heating settings and verify if a remote controller is assigned.If no remote is physically installed, change the frost protection setting to the internal sensor option or reset the thermostat configuration to match your actual setup.

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