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Your trace air conditioner may display an error code when a fault occurs. Here is a list of common Trane AC error codes and their meaning to help you resolve the fault:
Trane ac error codes – list of Trane error codes and potential fixes (in some cases)
Section 1: Trane split ac error codes
Error Code 0x0
Meaning: Filter choke error.
Suggested troubleshooting: Clean the filters and retry.
Error Code 0x0
Meaning: Battery low error.
Suggested troubleshooting: Change the battery
Error Code 0x0A
Meaning: input power issue
Suggested troubleshooting: Check if the power cord is fine and connected properly.
Error Code 0x0B
Meaning: Possible fan failure
Suggested troubleshooting: Check the fan and replace, if necessary. Contact an experienced technician for help if you lack the knowhow to handle the procedure.
Trane mini split error codes F0
Meaning: For the most part, Trane AC error codes F0 indicates that the system is running low on refrigerant (perhaps due to a leak).
Possible fix: Look for and fix the leak. Empty and then refill the refrigerant correctly.
Trane mini split error codes E7
Meaning: Mode fault between indoor and outdoor unit.
Possible fix: Turn power off (at the breaker) to reset the issue.
Trane mini split error code E6
Meaning: communication error. Could be caused by incorrect wiring or main board problem.
Possible fix: Check wiring and/or the Main board ap1/ap2
Trane Split System Error Codes –other error codes explained
Error Code 0x01
Meaning: EEPROM error (there could be an issue with the communication circuit). The AC will probably stop working.
Error Code 0x0
Meaning: The compressor has failed or the unit is low on Refrigerant (again as a result of a leakage issue). Note that the unit is likely to stop working here as well.
Error Code 0x04
Meaning: Indoor temp sensor problem (Room)- Room temp sensor may have failed.
Error Code 0x05
Meaning: Outdoor temp sensor issue.
Error Code 0x06
Meaning: Indoor coil sensor fault.
Error Code 0x08
Meaning: Communication error (both the indoor and outdoor unit likely to stop).
Trane mini split error codes E3
Meaning: low pressure fault.
Trane Mini TVR 5G error codes – summary of common malfunction codes and meaning
Outdoor unit – (12/14/16KW)
H0– M_Home unmatching(Reserve）
E0– EEPROM Fault
E2– Communication fault between the outdoor chip and indoor chip
E3– Communication error between the Main board & IR341
E4– Outdoor unit sensor issue
E5– Voltage protection error
E6– Direct-current fan fault
E7– Heating fan fault (in area A) lasts for five minutes
E8 (Trane ac error code E8) – There are 2 times E6 fault (see E6 above) in 10 minutes (recovery after powering off).
E2– Communication malfunction between the indoor/outdoor unit
E4– T3&T4 temperature sensor issue
E7– Compressor discharge temp sensor malfunction
E9– EEPROM malfunction
EA- A fan (in A region) run for over 5 minutes in the Heat mode
H0– Communication error between IR341/main board
L0– Module malfunction
L4– MCE fault/simultaneously/cycle loop
Trane troubleshooting codes –
Trane ac error code E1
Meaning: This indicates that there could be Indoor PCB problem
Trace AC Error code EC
Meaning: Refrigerant leak detection malfunction (Applies to Trane inverter air Conditioner Only)
Trace AC Error code P3 (indoor unit)
Meaning: Compressor current protection (The unit’s protection system has detected that the compressor could be drawing excessive current).
Recommended troubleshooting: Reset power to your system and check if the code disappears after this.
Trace AC Error code L3
Meaning: Outdoor fan 1 protection error.
Trane ac error code E3
Meaning: Error code E3 typically indicates low pressure protection.
Suggested action: Check that the system has been installed properly (pipes sized and also routed correctly). Also verify that the indoor & outdoor units have required clearances. If this does not help, check if refrigerant charge is enough (proper refrigerant charge needs to be maintained). If installation and refrigerant charge are correct, it could be that one/more EEVs is stuck. Check and repair.
Trane air conditioner error code 106
Meaning: Air handler might not be sensing power perhaps due to a tripped circuit breaker, power cutoff, failure switch, fried fuse, or board issue.
Suggested Troubleshooting: Use a multimeter to test the unit’s power supply system and repair as necessary.
Trane ac unit error codes – frequently asked questions (FAQs)
How do I reset my Trane air conditioner?
To have your Trane air conditioner reset (and clear an error code), all you need to do is simply reset the circuit breaker.
The error code E7 typically points to a mode fault between indoor and outdoor unit. You can try turning power off (at the circuit breaker) to see if this will get rid of the issue.
What does H3 mean on Trane mini split?
Trane mini split error codes H3 may indicate compressor overheating protection (meaning that something could have caused the compressor to overheat (for example, a faulty condenser fan or Dust and debris build up on/around compressor).
If you find working with electronics fun, you might be able to resolve some of the most annoying Trane ac error codes using the ideas we have shared in the guide.
But if not, you need to call a pro- it is best to reach out to your local Trane Comfort Specialist if you’re unsure about who to contact.
PS: Head over to Trace’s main website for more troubleshooting tips if your issue persists.