Fujitsu AU G18LVLB Series Service Instruction page 67
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Also See for AU G18LVLB Series:
- Design & technical manual (253 pages) ,
- Service instruction (70 pages) ,
- Design & technical manual (67 pages)
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Trouble shooting 23
OUTDOOR UNIT Error Method:
Inverter Error
Detective Actuators:
Transistor PCB
Main PCB
Forecast of Cause :
1. External cause. 2. Power supply to Filter PCB to Transistor PCB wiring disconnection, open.
3. Transistor PCB failure. 4. Transistor PCB to Main PCB wiring disconnection, open.
5. Main PCB failure.
Check Point 1-1 :
Turn the power on again.
Error displayed again?
YES
Check Point 2 : Check the wiring (Power supply to Filter PCB to Transistor PCB)
Connector and wiring connection state check
Cable open check
OK
Check Point 3 : Transistor PCB
Replace Transistor PCB.
NO
Check Point 4 : Check the wiring (Transistor PCB to Main PCB)
Connector and wiring connection state check
Cable open check
OK
Check Point 5 : Main PCB
Replace Main PCB.
Indicate or Display:
Indoor Unit : Operation lamp: 6 time Flash,
Timer lamp: 3 time Flash
Economy lamp : Continuous flash.
ERROR CODE : [E : 63]
Detective details:
Error information received from Transistor PCB
Check Point 1-2 : External cause
Check if temporary voltage drop was not generated.
NO
Check if temporary open was not generated.
Check if ground is connected correctly or there are no related cables near the
power line.
02-28
Outdoor unit :
PUMP
LOW
POWER
DOWN
NOISE
ERROR
(L1)
(L2)
(L3)
(L4)
MODE
2
6
3
PEAK
CUT
(L5)
(L6)
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Table of Contents
Troubleshooting
