Specifications

897
FDC-HKX
15
Error display :
e43
[Excessive number of indoor units connected]
16
Error display :
e45
[Transmission error between inverter and Outdoor unit PCB]
Check that the 52C is ON. With the 52C ON, power is supplied to the inverter PCB.
Notes (1) Make a check referring to Troubleshooting for Inverter (page 903.)
(2) When receiving fails, the LED2 comes on at once. If the outdoor unit cannot receive signals for 10 seconds, the 52C is turned OFF.
Accordingly, the ON state can be checked only in this period of 10 seconds.
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
Green LED
1 time flash
Keeps flashing
Outdoor unit
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
Green LED
1 time flash
Keeps flashing
Outdoor unit
Notes (1) The maximum number of connectable
units of each model is as follows :
FDC140 type : 10, FDC224, 280 type
16.
(2) Outdoor No. setting check for indoor
units (to see if outdoor No. is of other
system)
(3) In case of auto addressing erase the
addresses stored in memory and
perform re-setting
Does the
LED
1 (Green) on the
inverter PCB
blink?
Is the
power supply
line normal?
YES
YES
YES
NO
NO
NO
Defective inverter PCB
Repair
Does the LED
2
(red) on the inverter PCB
blink?
(2)
• Defective inverter PCB
• Defective outdoor unit PCB
The inverter PCB cannot receive signals
• Defective inverter PCB
• Defective outdoor unit PCB
• Broken Cnl in No.5 (See next page)
- The ourdoor unit PCB cannot receive signals.
- The inberter PCB cannot send signals.
- The watch dog signal cannot be taken.
YES
YES
NO
(1)
NO
Doesn't the number
of indoor unit connected
exceed the specified
value?
Is it
normalized
Power supply reset
Unit is normal
(malfunction by
accidental noise)
Repair
Defective indoor outdoor
unit PCB Replacement