Indoor Unit Not Found

Was bedeutet INDOOR_UNIT_NOT_FOUND ?

The Evolution Control cannot detect the indoor unit. This communication error prevents the system from operating.

• Incorrect or loose ABCD wiring to the indoor unit
• Damaged communication wire
• Indoor unit control board issue
• Communication interference

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Recheck all ABCD wiring connections on the indoor unit and other system devices.

2. 2

   Ensure wire colors are consistently matched at all terminals.

3. 3

   Try pressing the left-side button to re-initiate detection.

4. 4

   Disconnect all accessories and devices from the ABCD bus, then connect the User Interface directly to the indoor unit with a short wire to isolate the issue.

5. 5

   Reconnect other devices one at a time to pinpoint the faulty component.

6. 6

   Contact an HVAC technician if the problem persists.