Error 396 — DC voltage sensor error of Fan2

What does 396 mean?

There is a fault with the DC voltage sensor specifically for Fan2 in the outdoor unit. This sensor monitors the voltage supplied to the fan, and an error here can lead to fan malfunction.

• Faulty DC voltage sensor for Fan2
• Loose sensor connection or wiring damage
• Control board issue affecting sensor reading
• Power fluctuation to Fan2

Click steps to track your progress.

1. 1

   Turn off power to the outdoor unit at the main electrical panel.

2. 2

   Locate Fan2 and its associated DC voltage sensor.

3. 3

   Inspect the sensor's wiring and connections for any signs of looseness or damage.

4. 4

   Ensure the sensor is properly installed and seated.

5. 5

   Restore power and check if the error is resolved. If not, the sensor or its wiring likely needs professional replacement.