26 Ballu air conditioner error codes + troubleshooting

Ballu air conditioner comes with many top-notch qualities and features combined with the most advanced technology. One of the prime qualities of their air conditioner is safety. That’s the reason that you will be displayed an error code if the system is under some threat or facing issues.

For your convenience, we have gathered all the error codes along with their causes and solutions. Though some errors can be taken down as DIY projects, always seek professional help whenever needed to prevent any major issues or damages to the system.

Ballu Air Conditioner MFS2, BSC, BV, BR Series Error Codes

Ballu air conditioner error code E1, E2, E3, E4

Causes:

1. E1: The internal unit temperature or air temperature sensor is malfunctioning, has a short circuit, or the wire harness is defective.
2. E2: The external unit temperature sensor is malfunctioning, has a short circuit, or the wire harness is defective.
3. E3: The condenser temperature sensor is malfunctioning, has a short circuit, or the wire harness is defective.
4. E4: The evaporator temperature sensor is malfunctioning, has a short circuit, or the wire harness is defective.

Solutions:

1. Measure the resistance of the sensor and if it is less than required, replace the sensor with a compatible one.
2. Check the wire and connectors for damages or looseness. Repair the wires and fix connectors where needed.
3. Ensure that the sensor is in its intended position and is properly connected to the main PCB.
4. Check the sensor for faults and go for a replacement if that’s the case.
5. If the error remains, contact a technician to inspect the main PCB and replace them if they are faulty.

Ballu air conditioner error code E5

Causes:

1. The AC system has entered the protection mode by mistake or has issues in the outdoor unit.

Solutions:

1. Look through the outdoor unit and do repairs if the refrigerant is leaking or the piping is damaged.
2. Clean dirty air filters of the outdoor unit to remove clogging.
3. Check electrical circuits and components as they can be defective.
4. Inspect the outdoor unit sensor for malfunctioning. Replace the sensor if it is faulty.
5. Ensure that you do the maintenance once every month or two to prevent such issues.

Ballu air conditioner error code E6

Causes:

1. The external unit protection of the system is tripped.
2. The engine or motor of the indoor unit fan is malfunctioning or completely failed.

Solutions:

If the external unit protection is tripping:

1. Open the outdoor unit and check the filter screen as this could be clogged. Remove dirt, insects, and debris using a high-pressure water valve.
2. Check the circuit breaker and repair or replace it if it is defective or burned.
3. Do a general cleaning of the whole outdoor unit to get rid of foreign objects, insects, and related items stuck in there.
4. Inspect the system and repair if the refrigerant piping or line has leaks.
5. Inspect the outdoor unit compressor and ensure it is properly grounded. If it is defective, seek professional help for repair or replacement.

If the engine or indoor unit fan is faulty:

• Do cleaning to remove dirt/debris and any foreign objects stuck in the fan blades.
• Inspect the wire harness of the fan and repair any damaged connectors.
• Inspect the fan motor of the indoor unit and if it is defective, do repairs or replacements as needed.

Ballu air conditioner error code E8

Causes:

1. The electrostatic filter is not working properly.
2. There are clogged-up dirt, dust, or objects in the electrostatic filter.
3. The electrostatic filter is broken or damaged.

Solutions:

1. Check the filter and get rid of all the dust or dirt build-up in the filter. Use high-pressure water to remove all the stuck objects.
2. Check for any holes in the filter. Repair the broken areas or replace them if it is damaged.
3. Check and ensure that the filter is properly placed at its particular place and is perfectly installed. Contact the installation engineer if there are any issues.

Ballu air conditioner error code P4

Causes:

1. There are some issues with the functioning of the evaporator sensor.
2. Temperature is fluctuating high and low and the compressor has turned OFF automatically.
3. The wiring and connections in the sensor are damaged or loose.
4. The main PCB is malfunctioning.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code E1-E4”.

Ballu air conditioner error code P5

Causes:

1. The sensor on the capacitor is malfunctioning. 
2. Temperature is increasing and decreasing, causing the compressor to turn OFF.
3. The sensor wire harness is damaged.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code E1-E4”.

Ballu air conditioner error code P6

Causes:

1. The internal heat exchanger has frozen or is under defrost mode.
2. The delay temperature of the internal heat exchanger is fluctuating, mostly exceeding the normal safe limit.
3. There is a malfunction in the air filters, expansion valve, orifice, or in the capillary tube.

Solutions:

1. Check the internal heat exchanger for ice build-up. Remove all the icing with the help of a blow dryer or brush. Avoid scraping hard as it can damage the component body.
2. Check for any blockages in the unit filters. Clean and remove the objects that are causing blockages.
3. Check for any issues in the expansion valve, coils, and piping. Repair or replace it if it is defective.
4. Check the thermostat and make sure that the heat exchanger connector is perfectly placed in its intended position and is not damaged or broken. Repair or replace it as required.

Ballu Inverter KFR-5701GW/Y2BPE & KFR-2601GW/BPE*2

Ballu Inverter Conditioner Indoor Unit Error Codes

Ballu air conditioner error code 01

Causes:

1. The room temperature sensor of the system is malfunctioning.
2. There is an open or short circuit in the room temperature sensor of the system.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code E1-E4”.

Ballu air conditioner error code 02

Causes:

1. The temperature sensor on the heat exchanger is abnormal.
2. The temperature sensor on the heat exchanger is subjected to an open or short circuit.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code E1-E4”.

Ballu air conditioner error code 03

Causes:

1. The heat exchanger is frozen or has icing on it.
2. The expansion valve, air filters, orifice, or capillary tube are not functioning well.
3. The compressor connector is broken or not placed in its intended position.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code P6”.

Ballu air conditioner error code 04

Causes:

1. The temperature of the heat exchanger is the exceeding normal limit.

Solutions:

1. Turn OFF the system and give it a rest of 5-15 minutes until the heat exchanger cools down.
2. Check the power cord and wire harness for damage. Repair the pinched wires or loose connectors as needed.
3. Via the remote controller, turn down the temperature for the thermostat to the lowest level.
4. Check fuses and circuit breakers for any issues and ensure a consistent supply of voltages.
5. Inspect the heat exchanger and do repairs or replacements as needed.

Ballu air conditioner error code 05

Causes:

1. The communication between indoor and outdoor units is interrupted.
2. The communication between two components within the same unit is abnormal.
3. There are some issues with the wiring and connections between the indoor and outdoor units.

Solutions:

1. Check the communication wiring for breakages, looseness, or burn. Repair damages and ensure that the wires are connected properly.
2. Check the signal receivers and settings from the remote controller. Reset the settings to default if necessary.
3. Inspect the main PCBs of indoor and outdoor units for malfunctioning. Replace them if they are defective.

Ballu air conditioner error code 08

Causes:

1. The indoor unit fan is not working properly.
2. The indoor unit fan motor is defective.
3. Something is stuck in the fan which is causing an interruption in its functioning.
4. The voltage supply to the fan motor is not stable or enough.

Solutions:

1. Check the indoor unit fan for any stuck objects. Remove all the blockages and rotate them manually until it starts running smoothly. Replace the fan motor if it is defective.
2. Check the voltage with the help of a meter. Make sure that a consistent supply of voltage is being supplied to the fan motor.
3. Check the AC motor and fan motor for any issues in the capacitor. Replace the capacitor if it allows conductivity.
4. If the error persists, check the wiring and connections of the main PCB. Replace the board if it is not working well.

Ballu Inverter Conditioner Outdoor Unit Error Codes

Ballu air conditioner error code 01

Causes:

1. The ambient temperature sensor of the outdoor unit has some issues with its functioning.
2. The ambient temperature sensor has an open or short circuit.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code E1-E4”.

Ballu air conditioner error code 02

Causes:

1. The temperature sensor on the heat exchanger of the outdoor unit is malfunctioning.
2. There is an open or short circuit in the outdoor unit’s temperature sensor on the heat exchanger.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code E1-E4”.

Ballu air conditioner error code 03

Causes:

1. The compressor is overheating or overloading.
2. The thermistor has experienced an open or short circuit.
3. The compressor is subjected to a rise in pressure.

Solutions:

1. Turn OFF the air conditioner for a few minutes. Let it rest to cool down. Turn it ON again to see if the error goes away.
2. Use a meter to check that the constant and sufficient voltage is being supplied to the system.
3. Check the compressor and make sure it’s not overloading. Clean the system thoroughly to remove any clogged-up dirt.
4. Check for any blockages in the evaporator. Remove all the dust or dirt clogged up.
5. Check the wiring and connections between the compressor and the main power cord. Repair the broken, loose, or damaged wires as needed.
6. Check the compressor for any malfunctions. Repair or replace it if it is defective.

Ballu air conditioner error code 04

Causes:

1. The temperature sensor of the outdoor unit capillary tube A is malfunctioning.
2. The temperature sensor of the outdoor unit capillary tube A has an open or short circuit.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code E1-E4”.

Ballu air conditioner error code 05

Causes:

1. The temperature sensor of the outdoor unit capillary tube B is malfunctioning.
2. There is an open or short circuit in the temperature sensor of the outdoor unit capillary tube B.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner “Error Code E1-E4”.

Ballu air conditioner error code 06

Causes:

1. The outdoor unit is being supplied with too large of an electric current.
2. The system has initiated overcurrent protection.

Solutions:

1. Try the exact solutions as suggested for the Ballu air conditioner ‘Error Code 03’.

Ballu air conditioner error code 07

Causes:

1. The system has no load at all.
2. The compressor is not connected to the system or failed.
3. The main module is damaged.

Solutions:

If the system is not taking any load:

1. Clean and remove dirt, debris, or objects causing clogs in the condenser coils and suction lines.
2. Check the refrigerant level and refill the gas if it is low.
3. Ensure that the correct suction line size is installed on the system.

If the compressor is not connected to the system:

• Check the wiring connections and repair any damaged wire or broken connectors.
• Replace any blown fuse or reset the tripped circuits if any.
• Inspect the thermostat and tweak it to different levels.

If the main module is damaged:

• Inspect the indoor and outdoor units and ensure they are of the same model and type.
• Check the wire harness and repair it if damaged.
• Contact a technician to inspect the main module and do repairs or replacements as needed.

Ballu air conditioner error code 08

Causes:

1. Inconsistent or abnormal voltages are being supplied to the system.
2. Too low or too high voltages are being supplied.

Solutions:

1. Check the input voltage and ensure that voltage is supplied within the normal and stable range.
2. Switch OFF the air conditioner. Contact the power company to inform them that the voltages are being supplied in abnormal ranges. Switch ON the air conditioner after the voltage comes back to its normal level.
3. If the error remains after the voltage issue is resolved, check the mainboard for any malfunctions. Repair or replace it as needed.
4. Seek the assistance of the technician to check the compressor. Repair or replace the compressor if it’s faulty.

Ballu air conditioner error code 09

Causes:

1. This error occurs when the system detects an instantaneous interruption in the power.

Solutions:

1. Check the power cord, power source, power supply, and wiring for any damage or malfunction. Do repairs or replacements as needed.
2. Check the circuit breakers and fuses for any burnouts. Reset circuit breakers and replace fuses if needed.
3. If that’s not the case, contact a licensed technician to inspect the system, troubleshoot the issues, and make fixes.

Ballu air conditioner error code 10

Causes:

1. The outdoor unit is overloading while it’s operating in COOLING mode.
2. OTD overloading during the COOLING cycle.

Solutions:

1. Change the thermostat and bring it to a level where AC has to work a little less.
2. Check the voltages and ensure a stable and consistent supply.
3. Check wiring and connections between the compressor, power source, and power supply. Repair any damaged wires or loose connectors.
4. Check the main PCB and Compressor for any malfunctioning. Repair or replace the components as suggested by the technician.

Ballu air conditioner error code 11

Causes:

1. The system is under the defrosting process.
2. The evaporator, coils, and related components have icing on them.

Solutions:

1. If the system is under the defrost process, wait for the process to complete and the error will be taken down right after the completion of the process.
2. If the error remains, run the fan at full speed and ensure proper airflow to the system.
3. Remove the solid ice from the coils using a brush while being gentle.

Ballu air conditioner error code 12

Causes:

1. The IPM power module of the system is defective.
2. The wires and connections of the IPM power module are damaged or loose.

Solutions:

1. Check the voltages and ensure a consistent supply.
2. Check the compressor phases and ensure they are all in place and the correct sequence. Seek professional help if phases are broken.
3. Check the discharge pressure, sensor, pressure switch, and stop valve for malfunctioning. Do repair or replacement as needed.
4. Check the IPM module and PCB for malfunctioning. Do repairs as needed.

Ballu air conditioner error code 13

Causes:

1. The data on the outdoor unit EEPROM is wrong or completely removed.
2. The chip wiring is damaged or broken.

Solutions:

1. Restart the AC system as this could be a one-time glitch and can be taken down by re-energizing the system.
2. Repair any broken wire or damaged connectors of the EEPROM chip and the main PCB. Replace the PCB if either of the components is defective.
3. Contact the company’s customer support or a licensed engineer to reprogram the EEPROM by uploading instructions according to your system.