Medium
6-t5 on Worcester Bosch Greenstar 2000

Your boiler is stuck in hot water mode, meaning your taps will work but your radiators will fail to heat up.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

3-way valve permanently in the DHW heating position: 0: heating, 1: DHW.

DIY fix possible

Turn the boiler power off at the fused spur switch for 30 seconds and turn it back on to reset the valve position.Press the 'Reset' button on the boiler control panel.Ensure your room thermostat is calling for heat to encourage the valve to switch.

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