Fujitsu AUUH18LUAS Service Manual page 104

Check point 4. Check output voltage of inverter PCB
Check outdoor unit circuit diagram and the voltage. (Measure at inverter PCB side
connector)
NOTE: For details of wiring diagram, refer to
TECHNICAL DATA AND PARTS LIST on page 02-33.
Read wire
Red—Black
→hite—Black
-> If the voltage is not correct, replace inverter PCB.
Check point 5. Replace main PCB
If Check point 1 to 4 do not improve the symptom, change main PCB.
2-31. E: 97.↓. Outdoor unit fan motor error (Outdoor unit)
RED
1
2
3
BLACK
4
WHITE
5
YELLOW
6
BROWN
7
18 model: 240 V to 400 V, 24/30/36 models: 262 V to 390 V
End
FAN MOTOR
FM
"→iring diagrams" in Chapter 2.
DC voltage
15±1.5 V
- (03-38) -
2. Troubleshooting with error code