Low
305 0 on Worcester Bosch Heatslave

Your boiler is temporarily pausing the hot water heating cycle to prevent the system from overheating or overworking.

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 for 15-20 minutes for the anti-cycle timer to expireEnsure hot water taps are fully closedCheck that the internal clock or programmer is not stuck on a constant 'on' setting

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Related fault codes

305View →E9View →

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