BoilerFaultCodesYour boiler has detected a critical internal fault with the burner system that regulates the fuel supply, meaning the appliance cannot ignite safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Burner Injector – Propane Stereomatic, Type 7, Rs1/8 3.1mm
What causes this fault?
This fault occurs when the boiler detects an issue with the components that deliver and ignite the gas at the burner, often due to a blockage or wear in the injector. Over time, carbon build-up or a failing gas valve can prevent the correct fuel-to-air mixture from reaching the ignition point, causing the system to shut down for safety. It essentially means the boiler can no longer guarantee a stable and controlled flame.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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A boiler cover plan would cover faults like E00-738 — no call-out fees, no surprises.
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