High
08. on Remeha Quinta 30

Your boiler is struggling to breathe because the vents or internal airways are blocked, preventing it from safely exhausting fumes.

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

Air transport. a. Fouling/clogging of the air supply, flue gas discharge or heat exchanger; b. Differential air pressure switch does not function: switch defective, gas/air connections loose/clogged/mixed up, or spring loaded damper does not open.

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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