IFB AC Error Codes – What are They and Fixes

IFB Industries was founded in 1974, in Goa India. The company currently owns 530 retail stores and is a trusted brand in the market. What once was the Indian Fine Blanks Ltd., soon became the IFB industry. Back in the day, the company started its system by collaborating with Heinrich Schmid AG, and not so soon after tying an agreement with Bosch-Siemens Hausgerate. It was then that the company started producing domestic appliances such as washing machines, air conditioning, etc.

Today IFB offers buyers a wide range of home and commercial appliances that includes but is not limited to dishwashers, washer-dryers, automatic washing machines, laundry dryers, microwaves, ovens, chimneys, hobs, air conditioners and so much more. All of which are proudly manufactured and distributed in India.

Error codes are a common issue you may face with various appliances in your house or workplace. Rather than panicking, we suggest you grab a pen and paper and note down the code rather than pressing various buttons. This can commonly result in prolonging the issue or even causing more issues in the long run. So why risk damaging your appliance any further, when you will be able to find out the exact issue using the common error code list for IFB AC error codes listed below. Once you know the exact issue you can easily call in a professional, or fix the issue yourself.

Codes List

In case of error, the display on the indoor unit shown the following error codes.

Error CodesDescription of the trouble
E1The fault of indoor temperature sensor. RUN lamp: flashes once.
E2The fault of indoor pipe temperature sensor. RUN lamp: flashes twice.
E4Gas Leakage
E6Malfunction of indoor fan motor. RUN lamp: flashes 6 times.

Indoor Unit Display

IFB Indoor Unit Display
IFB Indoor Unit Display


Malfunction: The appliance does not operate

Possible Causes:

  • Power failure/plug pulled out
  • Damaged indoor/outdoor unit fan motor
  • Faulty compressor thermomagnetic circuit breaker
  • Faulty protective device or fuses.
  • Loose connections or plug pulled out
  • It sometimes stops operating to protect the appliance.
  • Voltage higher or lower than the voltage range
  • Active TIMER-ON function
  • Damaged electronic control board

Malfunction: Strange odour

Possible Causes: Dirty air filter

Malfunction: Noise of running water

Possible Causes: Back flow of liquid in the refrigerant circulation

Malfunction: A fine mist comes from the air outlet

Possible Causes: This occurs when the air in the room becomes very cold, for example in the COOLING or DEHUMIDIFYING/DRY modes

Malfunction: A strange noise can be heard

Possible Causes: This noise is made by the expansion or contraction of the front panel due to variations in temperature and does not indicate a problem

Malfunction: Insufficient airflow, either hot or cold

Possible Causes:

  • Unsuitable temperature setting.
  • Obstructed air conditioner intakes and outlets.
  • Dirty air filter.
  • Fan speed set at minimum.
  • Other sources of heat in the room.
  • No refrigerant

Malfunction: The appliance does not respond to commands

Possible Causes:

  • Remote control is not near enough to indoor unit
  • The batteries of remote control nearly has no power
  • Obstacles between remote control and signal receiver in indoor unit

Malfunction: The display is off

Possible Causes:

  • Active LIGHT function
  • Power failure

Malfunction:  Switch off the air conditioner immediately and cut off the power supply in the event of:

Possible Causes:

  • Strange noises during operation.
  • Faulty electronic control board
  • Faulty fuses or switches.
  • Spraying water or objects inside the appliance.
  • Overheated cables or plugs.
  • Very strong smells coming from the appliance

Description: Air conditioner can’t configurate successful

Analysis of cause:

  1. Check the mobile or computer connected WIFI address and password is correct;
  2. Check air conditioner under configuration status;
  3. Whether have any firewall been set or not , router work normally or not;
  4. Air conditioner, router and mobile work in singal scope or not;

Description: Mobile can’t find air conditioner

Analysis of cause:

Software display,

Air conditioner out of line. Please check network working

  1. The air conditioner has been reconfigurated;
  2. Air conditioner out of power;
  3. Router out of power;
  4. The air conditioner cannot connect to the router;
  5. The air conditioner cannot connect to network through the router (under the remote mode);
  6. Mobile can’t connect to router (Under local control mode);
  7. The mobile phone cannot connect to network (under the remote mode).

Description: Mobile lost air conditioner controlling authority

Analysis of cause: Software display : Identification failed, please connect the local network and refresh again. It means the air conditioner has been reset, and the mobile phone has lost the permission of controlling the air conditioner, so you need to connect to WiFi to get permission. If it still cannot be controlled after connecting to local network, please delete it and wait for its refresh again

Description: Network uninitialized

Analysis of cause: It usually happened if user enter software and click air conditioner immediately, please observe the network working conditon, waiting a few seconds and try again

Description: The air conditioner can’t be deleted in the list

Analysis of cause: The air conditioner can’t be deleted under locked state, please unlock it and try again


Periodic maintenance is essential for keeping your air conditioner efficient. Before carrying out any maintenance , disconnect the power supply by putting the installation on/ off switch to off.

IFB Air Conditioner Maintenance
IFB Air Conditioner Maintenance

Indoor Unit:

Antidust Filters

  1. Open the front panel following the direction of the arrow
  2. Keeping the front panel raised with one hand, take out the air filter with the other hand
  3. Clean the filter with water ; if the filter is soiled with oil,it can be washed with warm water (not exceeding 45C ). Leave to dry in a cool and dry place
  4. Keeping the front panel raised with one hand , insert the air filter with the other hand
  5. Close

The electrostatic and the deodorant filter (if installed) cannot be washed or regenerated and must be replaced with new filters once every 6 months.

Remote Control

IFB Air Conditioner Remote Control
IFB Air Conditioner Remote Control
IFB Remote Control Display
IFB Remote Control Display
IFB Air Conditioner Remote Control
IFB Air Conditioner Remote Control

Manual Pdf

IFB Air Conditioner User Manual

*If you can't find the code you're looking for on our site, please let us know, and we'll update our database as soon as possible.

31 thoughts on “IFB AC Error Codes – What are They and Fixes”

    • E6 error is coming in my AC. But sometimes it starts. Many times i have called the technician and th ac started in his presence. But after ward it again started showing E6 error. this error is coming during starting of AC. Once the ac starts it can run continuously over night with out stop but after closure this problem of E6 display comes, then no one can start. Please suggest what can be done. We have checked the sensor. If there was problem in sensor, then the ac should not start at all. Compresser is OK because when ac starts, then cooling is sufficient. Techncian is even not getting what to check. Please suggest.


Leave a Comment