High Lockout
LE on Ideal Mexico HE

Your boiler’s internal computer has encountered a critical error and cannot communicate properly with the system.

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

BOARD ERROR

What causes this fault?

This fault occurs when the boiler's main control board suffers a hardware failure or a corruption in its software, meaning it can no longer process commands. The most common reason is age-related wear to the electrical components on the board, though it can also be triggered by a sudden power surge or moisture getting into the control box.

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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Related fault codes

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