Low
305 0 on Worcester Bosch Hideaway 90

Your boiler is taking a short, programmed break to prevent it from switching on and off too frequently while heating your water.

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

Boiler in hot water anti-cycle mode

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

Wait 10 to 15 minutes for the anti-cycle timer to finishEnsure your hot water cylinder thermostat is not set too lowCheck that there is no air trapped in your heating system

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