What does the Ideal L-A fault code mean?

Your boiler has become too hot and has automatically shut itself down to prevent damage and ensure safety.

How much does it cost to fix Ideal error code L-A?

Typical repair cost for the Ideal L-A fault is £120-280 including labour.

Can I fix Ideal fault code L-A myself?

Check that your radiator valves are open

Ideal L-A Fault Code: What It Means & How to Fix It

Technical description

Boiler Overheat Thermostat: This thermostat will shut down the boiler in the event of overheating

What causes this fault?

This fault occurs when the water temperature inside the boiler exceeds a safe limit, causing the safety sensors to cut the power. The most common reasons are a pump failure that stops water from moving or a blockage in the system that prevents heat from being carried away from the boiler.

This issue is more frequent in autumn or winter when the heating is first turned on after a long summer break, as internal pumps are prone to seizing up during periods of inactivity.

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.

Find a Gas Safe engineer

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Your boiler has become too hot and has automatically shut itself down to prevent damage and ensure safety.

Technical description

What causes this fault?

Engineer required

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