Emergency
DOWNDRAUGHT FAULT on Ideal Concord CXA 40-120

Your boiler has detected that gases are not being cleared away properly through the flue, which is a safety mechanism to prevent harmful fumes from entering your home.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description

Flue/downdraught problem detected. Wait 15 mins; check system flue; check TTB probe / detection.

Engineer required

This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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