Service Diagnosis
53
UA
Description
INSTALLATION ABNORMALITY
Supposed Cause
1. Wrong models interconnected.
2. Wrong indoor unit PCB mounted.
3. Indoor unit PCB defective.
4. Wrong outdoor unit PCB mounted or defective.
Troubleshooting
OK?
No
Yes
Are the
connecting wires
connected
properly?
Yes
No
Correct the connection.
Match the compatible models.
Matched compatibly?
No
Yes
Change for the correct PCB.
Replace the indoor unit PCB
(or the outdoor unit PCB).
Check the combination of the
indoor and outdoor unit.
Check the indoor and outdoor
PCB part number.
Содержание FTXB50BV1B
Страница 1: ...SERVICE MANUAL Inverter DOO 0RXQWHG Single Split SM 5WMY A1 R410A...
Страница 60: ...Wiring Connection 54 4 0 Wiring Connection Model ATXN FTXN 25 35L M ARXN RXN 25 35L M...
Страница 61: ...Wiring Connection 55 Model ATXN FTXN 50 60L ARXN RXN 50 60L...
Страница 62: ...Wiring Connection 56 Model ATXN FTXN 50 60M ARXN RXN 50 60M...