Low
204 on Worcester Bosch Hideaway 90

Your boiler is temporarily pausing because the water inside it is currently hotter than the temperature you have requested.

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 waiting – the actual temperature is higher than the calculated or selected boiler temperature

Shared across the range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s 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

Check your room thermostat and turn it up slightly to see if the boiler fires upWait 15-20 minutes for the water temperature to drop naturallyEnsure your radiator valves are open to allow heat to dissipate

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