Emergency
22 on Baxi Combi 80 Maxflue

Your boiler is struggling to breathe because it cannot clear out exhaust gases properly, so it has safely shut itself down to prevent fumes from building up inside 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.

What the manual says

Manufacturer manual

Fault on Fan or Flue

From this model's manual
Verified against the Baxi/Baxi Combi 80e installation & service manual, page 5.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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Related fault codes

E22View →E23View →E24View →

All 47 fault codes on the Combi 80 Maxflue

Seeing a different code? Every code this model can display, in one place.

© neon flashing101112131415232425262728293031Burner On NeonBurner on neon NOT illuminatedDHW FLOW SWITCHFANFlame Failure (Red Light) ONFlame Failure Neonneon flashingneon flashing (Burner lights)neon flashing (Fan runs)neon flashing (Pump runs)neon flashing (Section D)neon flashing (Section E)neon flashing (Section H & K)neon flashing (Section I)neon flashing (Section J)neon flashing (Spark/Ignition)neon illuminatedPower On NeonPressure of 3 or greaterRed 'Flame Failure' neon litReset neon illuminated (Red)Safety thermostat activated且 neon flashing布 & 皿 neons flashing布 neon flashing毛 neon flashing皿 neon illuminated血 neon illuminated閃 neon flashing閃 neon illuminated

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