High
LA/HA on Ideal Mexico Super 100FF / 125FF

Your boiler has become too hot and has automatically switched itself off to stay safe, so you will have no heating or hot water until the internal temperature drops.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Overheat reset (displays 3 horizontal lines until temperature drops below 50oC)

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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