Fault Code Lookup

HVAC Sales Master
ERR.184.06
Diagonal Current Protection
This code typically points to
  • High indoor load conditions
  • Low indoor airflow
  • High indoor blower static
  • Refrigerant overcharge

Next checks to confirm
  1. Check indoor load and airflow
  2. Verify blower static pressure
  3. Verify refrigerant charge

Escalation
5-minute soft lockout; 5 occurrences within approximately 5 hours result in Universal Hard Lockout (184.08)
Reset behavior
Soft lockout clears; repeated escalate.
Urgent
Fix now
Deeper detail available
The manufacturer has pushed full per-code troubleshooting trees into the Trane Technician app. Use the app for subcode detail beyond what's shown here.
Source
Trane System Alert Guide p.41, public distributor-posted PDF