High
Low mains voltage on Ideal Concorde

Your boiler is receiving too little electrical power to operate safely, which may be caused by an issue with your home's electricity supply or a failing internal pump.

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

Less than 185v to boiler then check voltage at boiler mains in if mains voltage is okay pump needs replacing

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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