BoilerFaultCodesTechnical description
Gas–valve control + defective | Short circuit/earth (ground) leak in cable loom to gas valves, gas valve assembly defective (earth/ground leak from coils), electronic control system defective
What causes this fault?
This fault occurs when the boiler's main control board loses the ability to safely manage the fuel supply because of an electrical malfunction. The most common reason is an internal short circuit in the gas valve's coils or damage to the wiring, which prevents the system from opening the valve to ignite the burner.
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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