What does the Ideal Overheat light on fault code mean?

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

How much does it cost to fix Ideal error code Overheat light on?

Typical repair cost for the Ideal Overheat light on fault is £90-250 including labour.

Can I fix Ideal fault code Overheat light on myself?

Wait for the boiler to cool down completely (at least 20 minutes)

Ideal Overheat light on Fault Code: What It Means & How to Fix It

Technical description

Safety temperature limiter has tripped due to excessive temperature; requires manual reset.

What causes this fault?

This fault occurs when the water inside the boiler exceeds a safe temperature limit, causing a safety switch to cut the power. The most common reasons are a pump failure that stops water from moving or a buildup of debris that blocks flow through the heat exchanger.

This issue is more frequent when heating is first turned on after summer, as pump components can seize up during long 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

Search the official register →

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

Technical description

What causes this fault?

Engineer required

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