BG330+ Boiler F4 Fault Code Lockout

BG330+ Boiler F4 Fault Code Lockout Also applies to Glow-worm Flexicom hx boiler Before you go any further, please read our Legal Disclaimer. We were called to a British Gas BG330+ boiler which had developed an F4 fault code. After being re-set the boiler would make 5 ignition attempts before locking out again, showing the […]

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