Low
201 O on Worcester Bosch Heatslave

Your boiler is simply letting you know it is currently working to heat up your hot 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 mode

DIY fix possible

This fault may be fixable without an engineer. Check your manual first.

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Related fault codes

200View →202View →

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