E38 - Outdoor air temperature sensor anomaly

What does E38 mean?

The remote control displays E38 (while the indoor unit's green LED keeps flashing and red LED stays off). This indicates a problem with the outdoor air temperature sensor.

• A defective outdoor air temperature sensor (broken wire or poor connector connection)
• A defective outdoor unit control PCB

Click steps to track your progress.

1. 1

   Ensure nothing is physically blocking the outdoor air temperature sensor, which is usually located on the outdoor unit.

2. 2

   Power cycle the air conditioner by turning off its main power supply for a few minutes before restoring it.

3. 3

   If the issue persists, contact a qualified technician to inspect, repair, or replace the temperature sensor or the outdoor unit control PCB.