Low
305 0 on Worcester Bosch Hideaway

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

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.

Technical description

Boiler in hot water anti-cycle mode

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

Find a Gas Safe engineer
Search the official register →

Related fault codes

305View →

Related guides you might find useful

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →

New boiler cost 2026

Realistic UK prices for a swap.

Read →