Most of the LG mini split error codes become the cause of the disturbed working of your Air Conditioner. The error codes will indicate that your air conditioner is facing some issues and has been malfunctioning. Moreover, it tells you regarding the severity of the issue.
There are some error codes which require you to reset the air conditioner while the other error codes demand calling an expert. In case of component failure, there are some error codes which require component replacement as well.
In this guide, I will be discussing LG mini split error codes, their actual meanings along with causes and troubleshooting. Solving these errors on time might help you to prevent a major breakdown.
How to Troubleshoot Common LG Mini Split Error Codes
Following are the LG mini split error codes along with their troubleshooting guides.
Error Code CH00
Meaning
- Error code CH00 occurs due to an electrical problem.
Cause
When error code CH00 occurs it means that there is some electrical issue, specifically a power fluctuation. You need to inspect the whole unit to identify the actual fault.
Troubleshooting
Reset the mini-split for 5 minutes and check whether the error exists afterwards. In case the error exists, call an expert for the job.
Error Code CH01/CH02/E1/E2
Meaning
- Error codes CH01/CH02/E1/E2 occur due to an auto-stop protection problem.
Cause
When error code CH01/CH02/E1/E2 occurs it means that there is some issue with the auto-stop protection. It happens due to a short circuit or open circuit issue which also affects the pipe sensor.
Troubleshooting
You need to call a professional for inspecting the pipe sensor.
LG Mini Split Error Codes CH 03 or Code E3
Meaning
- Error codes CH 03/E3 occur due to the absence of refrigerant.
Cause
When error code CH 03/E3 occurs it means that refrigerant’s level has dropped significantly. If your AC won’t cool then it is a clear indication of a refrigerant leakage.
Troubleshooting
Contact a professional so that he can do refrigerant refilling.
LG Mini Split Error Codes CH 05 (LG Mini Split Error Codes 5 Flashes)
Meaning
- Error code CH 05 occurs when there is a communication fault in an indoor unit or outdoor unit.
Cause
Error code CH 05 sometimes occurs in the form of light flashes. If you witness 5 consistent light flashes then it means there is something wrong with the communication in your indoor unit or outdoor unit. The possible causes of this issue are:
- Faulty Wiring
- Defective Power Supply
Troubleshooting
Make sure that the whole unit is getting sufficient power. To be on the safe side, reset the breaker and check the thermal fuse. Do the checking using a multimeter, if you witness any continuity then it means the components have not failed. In the other case, replace the faulty components.
Error Code CH07
Meaning
- Error code CH07 occurs due to operational variation between the master unit and indoor unit.
Cause
When error code CH07 occurs it means that there is a difference in operation among the master unit and indoor unit. If you witness such an issue then you have to check the temperature settings of the two mentioned units.
Troubleshooting
Reset the temperature of the indoor and master unit so that they can have a match. Unplug the mini-split for a short duration, it will reset the air conditioner if you can’t get rid of the error code.
LG Mini Split Error Codes CH 10
Meaning
- Error code CH 10 occurs due to the presence of a locked up motor.
Cause
When error code CH 10 occurs it means that the fan motor has failed to run due to which the indoor fan becomes locked. To make a confirmation check the blinking of the indoor LED which will blink once.
Troubleshooting
Replace the faulty fan motor.
LG Mini Split Error Codes CH 21
Meaning
- Error code CH 21 occurs due to the presence of a failed PCB or an over-voltage compressor.
Cause
When error code CH 21 occurs it means that excessive voltage is present which is enough to produce a short-circuit in the compressor. Moreover, this error could also mean the presence of a faulty PCB board.
Troubleshooting
Check both the compressor and PCB. If any of these have gone faulty then replace them as soon as possible.
LG Mini Split Error Codes 26
Meaning
- Error codes 26 occur due to the presence of a seized compressor.
Cause
When error codes 26 occur it means that the compressor is connected improperly. Due to improper connection the compressor might be seized and this is what causes error codes 26.
Troubleshooting
Check the compressor’s connection, if they are well connected then there is nothing to worry about. However, if the connections seem to be improper then correct them or hire a technician to do the job.
Also Visit: How To Reset Mitsubishi Air Conditioner
Also Visit: Samsung Air Conditioner Blinking Lights [7 Issues & Fixes]
Also Visit: Bosch Silence Plus 44 DBA Troubleshooting
Also Visit: Coleman Mach Air Conditioner Troubleshooting
Also Visit: How to Reset Daikin Air Conditioner
Error Code CH34
Meaning
- Error code CH34 occurs due to the overheating of the unit.
Cause
When error code CH34 occurs it means that the Air Conditioner is experiencing overheating. This might happen due to the exposure of your unit to sunlight. Along with this, if the condenser coils have been clogged then it might also become the reason for the occurrence of error CH34.
Troubleshooting
Check the condenser coils for dirt. If they are dirty then clean them properly. Also, avoid placing the unit in direct sunlight.
LG Mini Split Error Codes CH35
Meaning
- Error code CH35 occurs due to the presence of a faulty low-pressure sensor.
Cause
The triggers for error code CH35 are:
- Blocked outdoor fan
- Refrigerant leakage
- Faulty compressor sensor
- Defective control board
Troubleshooting
Check the outdoor fan first. Clean the fan for possible blockages such as branches, debris and dirt. If the fan is clean and clear then hire an expert for inspecting other issues.
LG Mini Split Error Codes CH 38
Meaning
- Error codes CH 38 occur due to low refrigerant or electrical fault.
Cause
If error codes CH 38 occur then it means there is an electrical fault. The fault could be either a refrigerant leakage or unstable power. You need to check both.
Troubleshooting
Start by resetting the mini-split by keeping it unplugged for 5 minutes. If the code still exists then call an expert to check for possible refrigerant leakage. Refill the refrigerant if the level is too low.
Also Read: 9 Mitsubishi Electric Air Conditioner Blinking Green Light
Also Read: 17 Samsung Air Conditioner Error Codes Troubleshooting
Also Read: GE Air Conditioner Troubleshooting
Also Visit: Fujitsu Mini Split Troubleshooting Guide [Fixation 2024]
Also Visit: Frigidaire Air Conditioner Not Cooling
Also Visit: GE Air Conditioner Troubleshooting [Problem Fixation 2024]
LG Mini Split Error Codes CH 67
Meaning
- Error codes CH 67 occur due to a faulty outdoor fan lock.
Cause
If error codes CH 67 occur then it means the outdoor fan motor is seized resulting in a faulty fan lock. Also check the rotation sensor circuit to make a confirmation regarding the error code.
Troubleshooting
Inspect the PCB and fan motor for possible faults. If one of them is faulty then make a quick replacement, to do this call an expert.
Error Code FL or P2
Meaning
- Error code FL/P2 occurs due to a full drain pan.
Cause
If the error code FL/P2 occurs then it means the drain pan has filled with water completely. It could be due to high humidity.
Troubleshooting
Increase the air conditioner’s fan speed to improve the water drainage. Set the unit on Cool Mode and shut the windows to make the environment more temperature-controlled.
Code E4
Meaning
- Error code E4 occurs when the mini-split is on the Defrost Mode.
Cause
Error code E4 is not exactly a fault code. It occurs when the Air Conditioner enters the defrost mode and the frost is detected by the evaporator.
Troubleshooting
Just wait for the mini-split to complete the defrost cycle. This is a 10 minutes long process.
Error Code E5
Meaning
- Error code E5 occurs when the water collection tank fills up with water completely.
Cause
If error code E5 occurs then it means the water collection tank has filled up with water and there is no possibility for the water to draw out.
Troubleshooting
Remove the drain cap and then reinstall it once it starts flowing entirely.
Code F1/F2/F3
Meaning
- Error codes F1/F2/F3 occur when the unit has entered fan mode.
Cause
These error codes are also not fault codes. They just indicate that the unit is currently in the fan mode.
Troubleshooting
No troubleshooting is required when it comes to error codes F1/F2/F3.
Ending Thoughts:
All in all, I have mentioned all the LG mini split error codes that are more likely to be experienced by the users. In my guide, there are possible causes along with troubleshooting methods as well which you can use in solving the issues.
Jennifer is a seasoned writer and editor who plays a crucial role in our team. Growing up in an environment where appliance repairs were a common sight, she developed a genuine passion for DIY appliance troubleshooting.
Jennifer’s knowledge encompasses a variety of appliances, and she excels at demystifying complex issues. Whether it’s refrigerators, air conditioners, or microwaves, she’s dedicated to providing clear, actionable solutions.
Jennifer keeps a vigilant eye on emerging DIY trends, always eager to share innovative techniques with our readers. Her mission is to inspire individuals, especially women, to embrace appliance troubleshooting as an achievable skill.