Specifications

890
FDC-HKX
2
Error display :
e5
[Outdoor unit signal line error, power supply error]
Indoor unit
Red LED
Green LED
2 time flash
Keeps flashing
Outdoor unit
Stays OFF
Stays OFF
Red LED
Green LED
Outdoor unit
Stays OFF or
Keeps flashing
Stays OFF or
Lights continuously
Red LED
Green LED
Outdoor unit
Stays OFF
Keeps flashing
Red LED
Green LED
Note (1) This case is limited to the separate power supplies to indoor/outdoor units. (Combination of (indoor unit) red LED 2 time flash and (outdoor unit) green LED stays off
means that the power supply to the outdoor unit has been interrupted during operation.)
Notes (1) Check for poor connection (looseness, misconnection) at outdoor
unit terminal block and droken signal wires between outdoor
units.
(2) Check the poor connection or broken signal wires between
indoor/outdoor units.
Power supply
ON
• Blown fuse?
• Broken or loose wire at L 1 , L 2 or
N Phase?
• Was not there the power failure?
YES
NO
(1)
Did turn off
the power of outdoor
unit during
operatioon?
Is it
normalized
YES
NO
Power supply reset
Defective outdoor unit
PCB Replacement
(Defective network
communication circuit)
Malfunction due to noise, etc.
(Out of control CPU of outdoor
unit due to noise during power
on)
Signal wire
poor connection at
outdoor
unit?
Signal wire
poor contact between
indoor/outdoor
unit?
Is it
normalized
Repair
Repair
YES
YES
YES
NO
NO
(1)
(2)
Power supply reset
Unit is normal.
(Malfunction by
accidental noise)
Defective outdoor unit
PCB Replacement (De-
fective network communi-
cation circuit)