High
2926 V on Worcester Bosch Greenstar 2000

Your boiler has detected an electrical issue with the internal gas valve, which is preventing it from controlling the fuel flow correctly and causing it to shut down for safety.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Too high feedback from the modulating/ current controlled gas valve

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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