Low
204 O on Worcester Bosch Hideaway 90

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

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

Current primary water temperature higher than set value

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 that your radiator valves are fully open to allow water to flowEnsure there is no air trapped in your radiators by bleeding themLower the central heating temperature dial on the boiler front slightly

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