Low
200 on Worcester Bosch GB162

Your boiler is operating normally and is currently providing heat to your radiators.

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

The boiler is in heating mode

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.

What causes this fault?

This is not actually a fault, but rather a status code indicating that the boiler has received a request for warmth from your thermostat. It means the internal pump and burner are active and are successfully sending hot water to your radiators. You will see this code whenever the heating is running as intended.

This code is most frequently seen during the autumn and winter months when the central heating is programmed to run more often.

DIY fix possible

No action is required as this is an status indicator, not a fault.Check your thermostat settings if you did not expect the heating to be on.Monitor the display to ensure it changes when heating is no longer required.

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