Is there something wrong with your Trane AC? Check the appliance for an error code. Having found the code in the list below, you will be able to read the explanation and discover what the problem is. Next, you may try to resolve the issue. In case of a minor issue, you may be able to fix it on your own. If the malfunction is serious, the table will advise you to contact customer care.
Trane mini split error code c5
Most likely, there is a jumper connection malfunction.
If you have C5 flashing on your AC’s display, the voltage detection circuit has detected a voltage rise or drop. It can be caused by:
- A power surge in the electricity supply system
- Improper wiring
- Faulty bridge rectifier and/or IPM board
Wait until the power supply is normal and reset the unit. Make sure that voltage in the outdoor unit is normal. It should be equal to the power supply voltage. If it is not, check the voltage between L and N is equal to the power supply voltage. If it is not, make sure that the wiring of L and N is correct. Check the voltage at the bridge rectifier. If it is not equal to the power supply voltage, check whether the wiring at the rectifier is correct. If it is, check the voltage between P and N. To see if it is normal, refer to a table in your instruction manual. If the value is normal, the IPM board or outdoor PCB board (or both, if they are combined) is faulty and needs to be replaced. If the value is incorrect, check the bridge rectifier. Check the positive and negative continuity values of one diode. Refer to the table. If they are zero or infinite, the rectifier is faulty and needs to be replaced. However, if it proves to be ok, replace the PFC module. If you have done that, but the error is still there, check the wiring of inductance and reactor. If it is correct, check the inductance or reactor for continuity (the normal value is 0). If the value is far from normal, replace the IBM or inductance. If it is normal, replace the IPM board. If the IPM board is combined with the outdoor main PCB, replace the outdoor main PCB.
Trane mini split error code f0
This error code signals that the refrigerant leakage protection system is activated.
The possible causes are:
- A leak in the refrigerator line.
- Improper calibration of the indoor coil temperature sensor.
- Restricted refrigerator line (kinks, blockages, valve issues, etc.)
Commonly, the F0 fault code appears when the system is low on refrigerant. Also, this can be due to a leak, which is most likely to occur at flare fitting connections. Check the entire lineset. If you find the leak, the refrigerant will need to be removed from the system. This procedure should be carried out by a qualified specialist at a repair center, because it requires the use of specific equipment.
Trane e2 error code
The E2 fault code appears when the inside of the thermostat heats up to above 90 degrees. You can try to cool it down by placing ice on it. Once the temperature drops below 90 degrees, it will start working again. The problem occurs due to poor design.
Trane 7p1 error code
This error code signals activation of the high pressure protection mode
Th3 7P1 error means that the high pressure control switch or temp sensor has been triggered many times for a while. This may be due to a problem in the sensor, control board or refrigerator tubes. Please, do the following steps:
- Switch off and disconnect the unit from the mains for 2 minutes or so. Reconnect and turn it back on. If the error appears again within 20 seconds, most likely, there is an issue in the pressure control/temperature sensor or the control board in the outdoor unit.
- Check the temp sensor and/or pressure control device. Measure the temp sensor’s continuity. If it deviates from the normal value by more than 10%, take steps to replace the sensor. Please, note that this more-than-10% deviation is not necessarily the cause of the error. As far as the pressure control is concerned, you cannot check it by yourself. Please, consult a trained technician
- Be sure that there is a sufficient amount of refrigerant in the system. Excess amount of refrigerant can cause pressure to rise and cause the error, as the pressure protection function will be activated. The pressure should stay around 120 psi and 420 psi in the cool and heat more respectively.
- Make sure the refrigerator line is not blocked, kinked or restricted in any other ways. Check all tubes, reversing valves and filters for blockages. If there are, they could be causing pressure problems and temperature fluctuations, which often cause blocks.
- If the pressure is not actually increased or there is a slight increase over a long while, it is not unlikely that the compressor is overheating. The pressure protection system may be activated by a slow heat transfer to the temp sensor. If that is the case, the problem is in the compressor. Most likely, it needs to be replaced. Please, consult your local technical service provider.