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Automatic Defrosting with an Outdoor Unit

  • Others
  • Others
  • Troubleshooting
  • Split Air Conditioners
  • Last Updated 06/21/2015

Automatic Defrosting with an Outdoor Unit

 

 

 

symptom Symptom

 

        - No warm air but gas fumes from an outdoor unit during heating.

 

 

cause Cause

 

      1. Frost builds up on an heat exchanger in an outdoor unit if outdoor temperature is low and humidity is high. 

 

        2. Frost can decrease heating performance. Automatic defrosting will start to remove frost. Heating will pause for 5-7 minutes.

        3. For models with wired remote controllers, a water drop-shaped icon will appear at the bottom left corner of the controller display.

            Warm air will not come out for 5-7 minutes.

 

           

            floor standing air-conditioner and displayceiling built-in air-condtioner with display

 

        4. With models that use wireless remote controllers, louvers will be nearly closed during defrosting and hot air will not come out.

             A defrost icon will be shown on display.

 

        5. Vapor can be generated from the outdoor unit during defrosting. It is a normal sign of thawing.

 

        6. Water can pool under the outdoor unit as frost melts. Make sure water is drained properly.

 

          wired remote controller                                        heat exchanger                                                    vaporizing

      

          Heating performance can be decreased                Defrost icon displayed at the bottom left corner.                            Vapor is generated from the outdoor 
        due to frost on a heat exchanger                                                                                                                         unit during defrosting

 

 

 

       7. Frost builds up on an heat exchanger in an outdoor unit if outdoor temperature is low and humidity is high during heating.

 

       8. Frost can decrease heating performance. Automatic defrosting will start to remove frost.

 

           defrosting on heat exchanger

  

       9. Frost will melt and vapor will be generated during defrosting.

           Water can pool under the product, but it is not a product malfunction.

 

                 vaporizing

                      Vapor and water are generated as frost melts.


              

 

 

 

 

 

 

 

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