Overheat 'stat tripped High

Ideal Overheat 'stat tripped Fault Code

Also written as OVERHEATSTATTRIPPED — same fault.

The Ideal Overheat 'stat tripped fault code means: your boiler has shut down because it detected that the water inside has become too hot, causing a safety switch to trigger.. It appears on 1 Ideal model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Check continuity of water pressure switch and overheat 'stat. Check temperatures; if below 90°C replace stat, if above 90°C check CH/HW thermistors.

What causes the Ideal Overheat 'stat tripped fault?

This fault occurs when the water within the heat exchanger reaches a dangerously high temperature, triggering a safety sensor to cut off the gas for your protection. The most common reasons for this are a lack of water circulation caused by a failing pump, a blockage in the pipework, or a sensor that has become faulty and is giving a false reading.

This issue often surfaces when you first turn your heating back on in autumn, as internal pumps can seize up after being idle during the summer months.

Typical repair cost £90-180 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ideal models that show the Overheat 'stat tripped fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Ideal Overheat 'stat tripped fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026