Samsung air conditioner error code e422

samsung air conditioner error code e422

Pipe blockage error

1. Test items

  1. Check the open state of the outdoor unit service valve.
  2. Check the connection of the pipe.
  3. Check the operation of the EEV.
  4. Check the refrigerant leakage.
  5. Check the connection of the indoor unit PBA EVA sensor.
  6. Check the fault in the indoor unit EVA sensor
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