Outdoor unit communication fault

Was bedeutet OUTDOOR_COMM_FAULT ?

The control system cannot communicate with the outdoor unit. This means the outdoor unit will not function.

• Wiring issue on the ABCD bus to the outdoor unit
• Damaged communication cable
• Outdoor unit control board failure
• Power issue to the outdoor unit

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Verify the ABCD wiring connections on the outdoor unit are correct and secure.

2. 2

   Check the communication cable for damage.

3. 3

   Ensure the outdoor unit is receiving proper power.

4. 4

   Contact an HVAC technician for further diagnosis.