Your boiler has detected an electrical fault with the part that controls the gas supply, meaning it cannot ignite safely for heating or hot water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Gas–valve control + defective | Cause: 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 internal computer detects an electrical failure or a 'leak' of electricity within the components that regulate gas flow. The most common reason is that the electromagnetic coils inside the gas valve have worn out or developed a short circuit, preventing the system from opening the valve safely. It can also be caused by damaged wiring or a fault on the main control board itself, which stops the signals from reaching the valve.
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 F.60 — no call-out fees, no surprises.
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Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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