Carrier Error Codes

Carrier error codes verified against official Carrier support pages, owner's manuals and manufacturer service charts, by appliance.

• Carrier furnace error codes
• Carrier ac & heat pump error codes

All code pages

Carrier furnace 33 (limit or flame roll-out switch open) Carrier furnace 34 (ignition proving failure) Carrier furnace 32 (pressure switch did not close or reopened) Carrier ac & heat pump 18 (indoor coil freeze protection) Carrier ac & heat pump 31 (high pressure (limit, switch trip or disable))