High
BURNER FAILS TO START on Worcester Bosch Greenstar 8000

Your boiler is failing to ignite because it is not receiving the signal or power required to safely turn on.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

No power to boiler; Faulty boiler thermostat; Programmer open circuit; Faulty control box

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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Related fault codes

EAView →D1View →C6View →

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