Vandana Bhairwa
Established in 1943, Blue Star is a well-known brand for superior performance and durability, developing cutting-edge eco-friendly solutions. Air conditioning units are one of the key areas of expertise that blue star provides, along with a wider range of products serving every customer’s needs, including refrigerators, air purifiers, and air coolers. It covers air conditioners of every type of split, window, and inverter in 1, 1.5, and 2 tons and has a strong presence in commercial and residential applications. However, air conditioners sometimes stop working properly due to some technical glitches known as error codes found in them. That’s where our topic starts from.
Error codes in ac are basically alphanumeric symbols and are important in troubleshooting. Each ac has its own set of error codes, and these error codes are designed in such a way for particular errors or glitches in your product that you can easily identify and resolve, resulting in saving time and efficient working of ac. This article will discuss the error codes list of blue star ac, common problems, and how to fix them.
List of LG Washing Machine Error Codes
| Error Code | Reason |
| EE | Outdoor unit EEPROM Fault |
| E1 | Outdoor condenser temperature high and low fault |
| E2 | Outdoor Suction and discharge ice protection / Blower GAS Low |
| E3 | Outdoor Section Discharge |
| E4 | Discharge temperature high/low |
| E5 | Voltage Up-Down |
| E6 | Communication Error |
| E8 | Zero Current Passing Fault |
| EC | Refrigerant leakage |
| PH | AC High and Low Voltage |
| P4 | Current up-down Fault |
| P5 | Compressor or phase current fault |
| P7 | IPM (Intel Power Module) |
| P8 | IPM High Temperature |
| F2 | Indoor Coil Sensor Fault |
| F3 | Indoor Temperature Sensor Fault |
| F4 | Outdoor Coil Sensor |
| F5 | Outdoor Discharge |
| H6 | Indoor Fan Motor Fault |
| LC | Compressor Not Start |
| L3 | Outdoor fan motor fault |
Common Troubleshooting Fixes
Here are some common issues that may occur with a blue star ac error code and some potential solutions:
EE (Outdoor unit EEPROM Fault)
Description
The EE error code mainly represents the error of the output unit of the AC. In the outdoor unit, there is a main IC known as EEPROM made from a PCB unit, wires, and jack. If any wiring or jack is loose, you will see this error.
Solution
- With the help of a technician, check the outdoor unit if any wiring or jack is loose.
- Contact customer support or professional assistance if the error remains the same. It might need to replace or change the PCB unit.
E1 (Condenser Temperature High and Low Voltage)
Description
The E1 error code in the blue star ac occurs when the outdoor condenser temperature is high and low; another reason may include the refrigerant gas leakage.
Solution
- Check for the gas and the outdoor unit coils to see if it’s working properly and if all the wires are working properly.
E2 (Outdoor Suction and Discharge)
Description
The E2 error code commonly signifies a problem with the indoor coil temperature sensor or its circuit.
Solution
- Check the coil pipe sensor to see if it’s working fine or not.
- Change coil pipe sensor
- Track SMD PCB in coil pipe sensor.
E3 (Outdoor Section Discharge)
Description
The E3 error code occurs when the outdoor suction and discharge ice protection is.
Solution
Check for the outdoor temperature coil and look for any damage.
E4 (Discharge Temperature High/Low)
Description
The E4 error code typically points to a fault in the discharge temperature sensor or its circuit.
Solution
- Check the compressor discharge temperature sensor and clean it if required.
E5 (Voltage Fluctuation)
Description
When the voltage fluctuates, it cause the error E5
Solution
- Use the stabilizer
E6 (Communication Error)
Description
The E2 error code commonly signifies a problem with the indoor coil temperature sensor or its circuit.
Solution
- Check the coil pipe sensor to see if it’s working fine or not.
- Change coil pipe sensor
- Track SMD PCB in coil pipe sensor.
E8 (Zero Current Passing Fault)
Description
The E8 error code usually indicates a problem with the outdoor unit fan motor or its circuit.
Solution
- Inspect the outdoor unit fan motor for any obstructions or damage.
EC (Refrigerant Leakage)
Description
The EC error code commonly signifies a refrigerant gas leakage problem.
Solution
- Check for gas leakage.
- Repair the condenser coil’s corroded holes and change the condenser ducting. Also, replace the condenser or compressor if required.
PH (High/Low AC Voltage)
Description
Occur in case of high and low voltage.
Solution
By using stabilizer this error can be solved.
P4 (Current up-down Fault)
Description
When the DC voltage is up-down, the ac shows this error.
Solution
Repair PCB to resolve this error.
P4 (Compressor or Phase Current Fault)
Description
The P5 error code in Blue Star ac represents the fault related to the condenser (an important aspect for releasing heat from the refrigerant) temperature sensor.
Solution
To resolve the P5 error code, you can try the following steps:
Check the temperature sensor and make sure if the sensor is connected and working properly, meaning not in damaged condition.
Clean the condenser coil and remove dust, debris, and dirt. Remove it gently from the vacuum cleaner or soft brush.
Next is to examine the wiring connection and ensure it is safe and secure.
P7 (IPM (Intel Power Module))
Description
If there is a problem in IPM and both PCBs, it will show this error.
Solution
- Check for jack and wiring.
P8 (IPM High Temperature)
Description
IPM is also known as the Intelligent Power Module, an electronic component for controlling the compressor motor and other functions in the air conditioning unit. The p8 error code represents a high-temperature issue with the IPM.
Solution
- Examine the outdoor unit, ensure no dirt and debris are present, and clean the condenser coil. The fan motor draws air through the condenser coil to help in heat dissipation. Don’t forget to check the wiring damage.
F2 (Indoor Coil Sensor Fault)
Description
The F2 error code represents the indoor coil sensor fault responsible for measuring the coil temperature. When it fails or provides the incorrect reading, F2 is generated.
Solution
- Check the indoor evaporator coil and the sensor connection for damaged and loose connections. There may be a fault present in the sensor that needs to be replaced. Clean the coil and remove if any dirt is present.
F3 (Indoor Temperature Sensor Fault)
Description
The F3 error code shows the fault in the indoor temperature sensor, which is responsible for measuring the temperature of the indoor environment. When it fails to detect the incorrect reading, the f3 code is generated.
Solution
- To resolve this, check for the indoor coil if any dirt is present and gently remove it.
F4 (Outdoor Coil Sensor)
Description
The F4 error code in Blue Star air conditioners indicates a fault with the outdoor coil sensor. The outdoor coil sensor is responsible for measuring the temperature of the outdoor condenser coil. When the sensor fails or detects an incorrect reading, the F4 error code is triggered.
Solution
- Check the required outdoor coil. If it is not working properly, clean it and restart the ac.
F5 (Outdoor Discharge)
Description
When there is a problem with the outdoor discharge sensor, the ac generates this error.
Solution
- Check for the outdoor discharge sensor to see if it is working properly.
H6 (Indoor Fan Motor Fault)
Description
When the motor fan doesn’t work properly, the ac generates this error.
Solution
- Ensure the speed and shaft is properly in working condition, and there will be no rusting. Check the capacitor and blower motor. Also, check the wire to see if it is working.
LC (Compressor Not Start)
Description
If the compressor doesn’t start it creates the LC error code.
Solution
- To resolve this, check the capacitor.
L3 (Outdoor fan motor fault)
Description
When the outdoor fan motor is not working, this is the error which ac shows. Check if the compressor is not starting.
Solution
- Check the capacitor. If it is not working well, it can create many problems like overheating, vibrating in that case, and replacing the capacitor.
Conclusion
If the error remains the same, check with the customer service department of the blue star or take professional help from the expert.
So we have covered all the error codes, reasons, and troubleshooting tips; however, make sure to attend with the technical or professional expert. If you have any queries let us know in the below comments.
