What the code means
Alert 184.00: Indoor coil freeze protection
The Trane variable-speed alert table identifies IDCF CO when indoor coil freeze protection shuts down operation.
Troubleshooting code
Back to all 4TWV0X36A1 error codes
Trane 4TWV0X36A1 Alert 184.00 troubleshooting
Indoor coil freeze protection. Use this page to document the issue and prepare for service. GreenFlow should handle diagnosis for electrical, refrigerant, lockout, or recurring conditions.
Safe checks before calling
- Confirm the thermostat is on, set correctly, and calling for heating or cooling.
- Check the air filter and visible return-air path for obvious airflow restrictions.
- Look around the outdoor unit for leaves, snow, ice, or other visible obstructions without opening the cabinet.
- Take photos of the thermostat, outdoor unit, nameplate, and any visible flash pattern before scheduling service.
When to stop and call GreenFlow
Call GreenFlow if the code repeats, the system is locked out, heating or cooling is not restored, there is ice buildup, electrical odor, unusual noise, or any issue involving pressure switches, sensors, wiring, refrigerant, reversing-valve operation, or warranty coverage.
Share the visible code, model and serial number if available, photos, current symptoms, and whether the issue affects heating, cooling, or both.
Alert 184.00 questions
What does Alert 184.00 mean on a Trane 4TWV0X36A1?
The Trane variable-speed alert table identifies IDCF CO when indoor coil freeze protection shuts down operation.
What Trane message is associated with Alert 184.00?
The Trane source used for this page associates Alert 184.00 with "Indoor coil freeze protection". Match the visible display text, LED pattern, or alert wording to the exact code whenever possible.
What system area does Alert 184.00 point to?
This code is grouped under protection algorithm in the source-backed Trane troubleshooting data.
Which Trane documentation supports this Alert 184.00 page?
Source-backed Trane 4T-V0-SF-1Q-EN Service Facts variable-speed alert-code table for 4TWV0/4TTV0 outdoor units.
What information should be captured for Alert 184.00 before clearing alerts?
Capture the exact code, any displayed alert text, the model and serial number, thermostat or control status, operating mode, symptoms, and photos of the display or LED pattern before the alert history is cleared.
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