Troubleshooting steps
Check communication wiring, verify connections, reset system
HVAC Error Codes
Carrier E31 Error
Communication error
Details
Carrier E31 error indicates communication error. Faulty wiring, loose connections, board issue. Check communication wiring, verify connections, reset system.
Error typeerror
MeaningCommunication error
Typical causesFaulty wiring, loose connections, board issue
SolutionsCheck communication wiring, verify connections, reset system
Severityhigh
Catalog references
Where this appears
CarrierE31
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Common questions
What causes E31 error?
Faulty wiring, loose connections, board issue
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