What does the Ideal OVERHEAT FAULT fault code mean?

Your boiler has switched itself off because it became too hot, acting as a safety precaution to prevent damage.

How much does it cost to fix Ideal error code OVERHEAT FAULT?

Typical repair cost for the Ideal OVERHEAT FAULT fault is £90-180 including labour.

Can I fix Ideal fault code OVERHEAT FAULT myself?

Check that your radiator valves are open and not blocked

Ideal OVERHEAT FAULT Fault Code: What It Means & How to Fix It

Technical description

Overheat thermostat has operated. Requires pressing O/H reset button and checking system.

What causes this fault?

This fault occurs when the internal water temperature exceeds a safe limit, causing the boiler to shut down to prevent internal melting or component failure. The most common reasons are a lack of water flow caused by a failing pump or an airlock, though it can also be triggered if the sensors themselves become faulty.

This fault is more frequent during the first cold spell of autumn, as central heating pumps often seize up after being left idle throughout the summer months.

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 switched itself off because it became too hot, acting as a safety precaution to prevent damage.

Technical description

What causes this fault?

Engineer required

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