Trane Air conditioners provide great relief during the scorching heat of summer. However, all the fun is spoiled when the AC suddenly stops working and displays an error code that you have never seen before.
If that’s the case with you, don’t worry. This comprehensive guide will explain all the error codes of Trane air conditioners along with their meanings.
Trane air conditioner error code 0x01
Problem:
This error message indicates an EEPROM ERROR. It occurs due to an EEPROM COMMUNICATION ERROR and the unit stops working.
Action:
It is a technical problem so contact your service technician.
Trane air conditioner error code 0x02
Meaning:
This error message indicates a REFRIGERANT LEAK or COMPRESSOR FAILURE. Due to this error 02, the unit stops working.
Action:
Look for the leak and fix it. After that, empty and then refill the refrigerant properly.
If there’s a problem with the compressor, contact a service technician.
Trane air conditioner error code 0x03
Meaning:
This error occurs due to a problem with the filter choke. The unit continues to work according to the user settings.
Action:
Clean the filters of your air conditioner.
Trane air conditioner error code 0x04
Meaning:
Error 04 occurs due to a problem with the indoor temperature sensor.
In dry or cool mode, the unit continues to work with the compressor OFF.
In the fan mode, the unit continues to work according to the user settings.
Action:
Get in touch with a service technician.
Trane air conditioner error code 0x05
Meaning:
Error 05 is caused by a problem with the outdoor temperature sensor.
The outdoor and indoor units keep operating as per the user settings.
If the Trane mode is active, the AC unit works at a set point of 24°C.
Action:
Contact a service technician.
Trane air conditioner error code 0x06
Meaning:
Error 06 occurs due to a failure of the indoor coil sensor.
In dry or cool mode, the unit continues to work with the compressor OFF.
In the fan mode, the unit continues to work according to the user settings.
Action:
Contact a service technician.
Trane air conditioner error code 0x08
Meaning:
Error 08 occurs when there is a communication error in your unit.
The indoor and outdoor units stop working.
Action:
Contact a service technician.
Trane air conditioner error code 0x09
Meaning:
This error message means a LOW BATTERY ERROR. The outdoor and indoor units operate under user settings.
Action:
Please change the battery to fix this error.
Trane air conditioner error code 0x0A
Meaning:
This error occurs due to an input power problem. The entire unit stops working.
Action:
Check the power cord of your unit and make sure it is fine and properly connected.
Trane air conditioner error code 0x0B
Meaning:
This error code means fan failure. The problem causes the unit to stop working.
Action:
Check the fan and replace it if required.
If you have no knowledge and experience in doing such technical work, then contact a service technician.
Trane error code H0 (Mini TVR 5G)
Meaning:
The error is caused due to M_HOME UNMATCHING (RESERVE).
Trane error code E0 (Mini TVR 5G)
Meaning:
The error is caused due to a fault in the EEPROM.
Trane error code E2 (Mini TVR 5G)
Meaning:
The problem occurs due to a communication error between the indoor chip and the outdoor chip.
Trane error code E3 (Mini TVR 5G)
Meaning:
The problem occurs due to a communication error between the IR341 and the main board.
Trane error code E4 (Mini TVR 5G)
Meaning:
The error is caused when there is a fault in the outdoor unit sensor.
The problem is most likely in the T3 and T4 temperature sensors.
Trane error code E5 (Mini TVR 5G)
Meaning:
The error is caused due to a fault in the voltage protection.
Trane error code E6 (Mini TVR 5G)
Meaning:
This error message indicates a direct-current fan fault.
Trane error code E7 (Mini TVR 5G)
Meaning:
If the fault in the heating fan in area A lasts for 5 minutes, you see error code E7 on the screen.
If the same error code appears on the outdoor unit, it means there is a malfunction in the compressor discharge temperature sensor.
Trane error code E8 (Mini TVR 5G)
Meaning:
When the E6 fault occurs twice within 10 minutes, you see error code E8 on the screen.
Turn OFF the unit and restart it for recovery from the error.
Trane error code E9 (Mini TVR 5G)
Meaning:
If the outdoor unit of your AC displays error code E9, it means protection or malfunction: EEPROM malfunction.
Trane error code EA (Mini TVR 5G)
Meaning:
When a fan in the A region runs in heat mode for more than 5 minutes, you see the error code EA on the outdoor unit.
Trane error code EB (Mini TVR 5G)
Meaning:
If the E6 protection occurs twice within 10 minutes, it leads to error code EB.
Trane error code P0 (Mini TVR 5G)
Meaning:
This error message means the problem is cooling fin high-temperature protection.
Trane error code P1 (Mini TVR 5G)
Meaning:
This error message means the problem is high-pressure protection.
Trane error code P2 (Mini TVR 5G)
Meaning:
Error P2 is caused due to low-pressure protection.
Trane error code P3 (Mini TVR 5G)
Meaning:
The problem is caused due to compressor current protection.
Trane error code P4 (Mini TVR 5G)
Meaning:
Error P4 occurs due to discharge temperature protection.
Trane error code P5 (Mini TVR 5G)
Meaning:
Error P5 is caused due to outdoor condenser high-temperature protection.
Trane error code P6 (Mini TVR 5G)
Meaning:
Error P6 is caused due to IPM modules protection.
Trane error code P7 (Mini TVR 5G)
Meaning:
Error P7 is caused due to evaporator’s high-temperature protection.
Trane error code P8 (Mini TVR 5G)
Meaning:
Error P8 is caused due to typhoon protection.
Trane error code PE (Mini TVR 5G)
Meaning:
This error code means protection or malfunction: indoor evaporator hi-temp protection. It appears on the outdoor unit.
Trane error code HO (Mini TVR 5G)
Meaning:
If your outdoor unit displays error code HO, it means there is a communication malfunction between the main board and the IR341.
Trane AC error code E1 (split-system)
Meaning:
When there is a malfunction in the indoor PCB, error E1 occurs.
Trane AC error code E2 (split-system)
Meaning:
Error E2 is caused due to anti-freezing protection.
Trane AC error code E5 (split-system)
Meaning:
Error E5 is caused due to over-current protection.
Trane AC error code EE (split-system)
Meaning:
Error code EE is caused due to storage slug.
Trane AC error code F1 (split-system)
Meaning:
Error F1 is caused when there is a problem with the internal ambient temperature sensor.
Trane AC error code F2 (split-system)
Meaning:
Error F2 is caused when there is a problem with the indoor pipe temperature sensor.
Trane AC error code H3 (split-system)
Meaning:
Error H3 is caused when the compressor of your air conditioner is overloaded.
Trane AC error code H4 (split-system)
Meaning:
Error H4 occurs due to system overload.
Trane AC error code H6 (split-system)
Meaning:
This error is caused when there is no motor of indoor unit feedback.
Trane AC error code LC (split-system)
Meaning:
The error is caused due to startup failure.
Trane AC error code U1 (split-system)
Meaning:
When there is a malfunction in the phase current detection of the compressor.
Trane AC error code U7 (split-system)
Meaning:
When the 4-way valve conversion is abnormal, it leads to error U7.
Trane AC error code UF (split-system)
Meaning:
When the zero passage is abnormal, it causes error UF.
Trane AC error code UH (split-system)
Meaning:
This error is caused when there is no motor of outdoor unit feedback.
Trane aircon error code B5 (Multi-split)
Meaning:
If the liquid valve temperature sensor of your indoor unit is open or short-circuited, it leads to error B5.
Trane aircon error code B7 (Multi-split)
Meaning:
If the gas valve temperature sensor of your indoor unit is open or short-circuited, it leads to error B7.
Trane aircon error code DN (Multi-split)
Meaning:
This error appears when there is a malfunction in the expansion valve or when the communication line is disconnected.
Trane aircon error code E1 (Multi-split)
Meaning:
It occurs due to a high-pressure prevention system.
Trane aircon error code E2 (Multi-split)
Meaning:
It is caused due to anti-freezing prevention system.
Trane aircon error code E3 (Multi-split)
Meaning:
It is caused due to low-pressure prevention system.
Trane error code E4 (Multi-split)
Meaning:
This error is caused due to discharge high-temperature prevention system.
Trane aircon error code E5 (Multi-split)
Meaning:
It is caused due to over-current prevention system. Frequency decreased.
Trane aircon error code E6 (Multi-split)
Meaning:
It is caused due to a communication problem between the outdoor and the indoor unit.
Trane aircon error code E7 (Multi-split)
Meaning:
Error E7 is caused due to a running mode problem.
Trane aircon error code E8 (Multi-split)
Meaning:
Error E8 is caused due to overload prevention system; frequency decreased.
Trane aircon error code E9 (Multi-split)
Meaning:
It appears when there is a water overflow error in the indoor unit.
Trane aircon error code EN (Multi-split)
Meaning:
The EN error is caused by IPM (intelligent power module) current prevention system.
Trane aircon error code EU (Multi-split)
Meaning:
The EU error is caused by IPM (intelligent power module) temperature prevention system.
Trane aircon error code F1 (Multi-split)
Meaning:
This error is caused when the room air temperature sensor is open or short-circuited.
Trane aircon error code F2 (Multi-split)
Meaning:
This error is caused when the evaporator temperature sensor is open or short-circuited.
Trane aircon error code F3 (Multi-split)
Meaning:
This error is caused when the ambient temperature sensor of the outdoor unit is open or short-circuited.
Trane aircon error code F4 (Multi-split)
Meaning:
This error is caused when the condenser temperature sensor of the outdoor unit is open or short-circuited.
Trane aircon error code F5 (Multi-split)
Meaning:
This error is caused when the discharge temperature sensor is open or short-circuited.
Trane aircon error code F6 (Multi-split)
Meaning:
The error F6 occurs due to overload protection; frequency is restricted.
Trane aircon error code F8 (Multi-split)
Meaning:
The error F8 occurs due to current protection; frequency is restricted.
Trane aircon error code FO (Multi-split)
Meaning:
The error FO occurs due to pump down/blockage prevention/system charge shortage.
Trane aircon error code F9 (Multi-split)
Meaning:
The error F9 occurs due to high discharge temperature; frequency is restricted.
Trane aircon error code FH (Multi-split)
Meaning:
The error FH occurs due to anti-freezing; frequency is restricted.
Trane aircon error code H1 (Multi-split)
Meaning:
The error code H1 means defrosting.
Trane aircon error code H3 (Multi-split)
Meaning:
The error code H3 means compressor overheating preventive.
Trane aircon error code H7 (Multi-split)
Meaning:
The error code H7 means compressor desynchronizing.
Trane aircon error code H5 (Multi-split)
Meaning:
This error occurs due to intelligent power module current protection.
Trane aircon error code H6 (Multi-split)
Meaning:
This error is caused due to a stalled motor.
Trane aircon error code HE (Multi-split)
Meaning:
The error HE occurs due to compressor demagnetization protection.
Trane aircon error code HC (Multi-split)
Meaning:
The error HC is caused by PFC (power factor correction).
Trane aircon error code L3 (Multi-split)
Meaning:
Error code L3 indicates a problem in the outdoor fan 1.
Trane aircon error code LA (Multi-split)
Meaning:
Error code LA indicates a problem with the outdoor fan 2.
Trane aircon error code L9 (Multi-split)
Meaning:
The L9 error occurs due to over-power protection.
Trane aircon error code LC (Multi-split)
Meaning:
This error is caused by compressor startup failure.
Trane aircon error code LD (Multi-split)
Meaning:
This error is caused by compressor phase reversal/loss.
Trane aircon error code LE (Multi-split)
Meaning:
It occurs due to a stalling compressor.
Trane aircon error code LF (Multi-split)
Meaning:
Error code LF means speeding.
Trane aircon error code LP (Multi-split)
Meaning:
When the outdoor and indoor units are unmatched, you see the error code LP on the screen.
Trane aircon error code P6 (Multi-split)
Meaning:
This error code indicates a drive board communication error.
Trane aircon error code P9 (Multi-split)
Meaning:
The P9 error signals alternate current contractor error.
Trane aircon error code PF (Multi-split)
Meaning:
This error occurs due to a drive board temperature sensor error.
Trane aircon error code PU (Multi-split)
Meaning:
This error code means there is a capacitor charging error.
Trane aircon error code P5 (Multi-split)
Meaning:
The error P5 is caused by over phase current.
Trane aircon error code P7 (Multi-split)
Meaning:
If the IPM (intelligent power module) temperature sensor is open or short-circuited, it leads to error code P7.
Trane aircon error code P8 (Multi-split)
Meaning:
This error is caused by IPM (intelligent power module) temperature protection.
Trane aircon error code PH (Multi-split)
Meaning:
The error code PH occurs due to direct current bus over-voltage.
Trane aircon error code PL (Multi-split)
Meaning:
The error code PL occurs due to direct current bus under-voltage.
Trane aircon error code PP (Multi-split)
Meaning:
The error code PP is caused due to alternate current input voltage error code.
Trane aircon error code U1 (Multi-split)
Meaning:
The error code U1 occurs due to the compressor phase current circuit error code.
Trane aircon error code U3 (Multi-split)
Meaning:
The U3 error means sensor connection error code.
Trane aircon error code U5 (Multi-split)
Meaning:
The U5 error means the current circuit error code.
Trane aircon error code U7 (Multi-split)
Meaning:
This is a 4-way valve reversing error code.
Trane aircon error code U8 (Multi-split)
Meaning:
The U8 error is caused by the PG motor zero-crossing protection.
