Medium
358 on Worcester Bosch Greenstar CDi Compact

Your boiler is struggling to switch between heating your radiators and heating your hot water because a small internal component has become temporarily stuck.

Book a service

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

Three way valve kick

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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