Check out the displayed error codes on Samsung indoor unit air conditioner

Cause: 

    1.     Filter cleaning reminder

    2.     Filter reset indicator

Solution:

     Clean or replace the inner filters of the indoor unit

Cause:

    Auto clean indicator (Indoor unit produces odors)

Solution:

    Operate the Auto clean function to remove the odors

Cause:

    Automatic Defrost function (During the Defrost function or steam is produced on the outdoor unit)

Solution:

    This is not a manufacturing defect (When the Heat mode is off, this function will be turned off.)

Cause:

    1.     Defective of the room temperature sensor

    2.     Defective the heat exchanger temperature sensor

    3.     Defective fan motor or capacitor

    4.     Defective of the EEPROM

Solution:

    Contact the authorized Samsung service center

Cause:

    1.     Short of indoor heat exchanger sensor

    2.     Indoor heat exchanger sensor open

Solution:

    Check the exchanger sensor departure of the indoor unit (Sensor replacement may be needed)

Cause:

    1.     Short of the outdoor heat exchanger sensor

    2.     Outdoor heat exchanger sensor open

Solution:

    Check the exchanger sensor departure of the indoor unit (Sensor replacement may be needed)

Cause:

    1.     Short of the heater temperature sensor

    2.     Heater temperature sensor open

Solution:

    Check the exchanger sensor departure of the indoor unit (Sensor replacement may be needed)