What does the Ideal 4.7 fault code mean?

Your boiler detects a flame when it should be off, which is a safety error that prevents the system from starting up.

How much does it cost to fix Ideal error code 4.7?

Typical repair cost for the Ideal 4.7 fault is £180-450 including labour.

Ideal 4.7 Fault Code: What It Means & How to Fix It

Technical description

Flame On Before Gas Valve On

What causes this fault?

This fault occurs when the boiler's sensors detect a flame inside the burner assembly even though the gas valve should be closed. The most common reasons are a gas valve that is leaking slightly and failing to shut off fully, or a faulty sensor lead that is sending a false signal back to the main control board.

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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Your boiler detects a flame when it should be off, which is a safety error that prevents the system from starting up.

Technical description

What causes this fault?

Engineer required

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