Error Codes - Fujitsu AR 7 Installation Manual

13. ERROR CODES

If you use a wired remote controller, error codes will appear on the remote controller display. If you use a wireless remote con-
troller, the lamps on the IR receiver unit will output error codes by way of blinking patterns. See the lamp blinking patterns and
error codes in the following table. An error display is displayed only during operation.
Error Display
Operation Timer ECONOMY
Lamp Lamp Lamp
(green) (orange) (green)
(1) (1)
(1) (2)
(1) (5)
(2) (1)
(2) (2)
(2) (3)
(2) (4)
(3) (2)
(3) (5)
(4) (1)
(4) (2)
(5) (1)
(5) (3)
(5) (15)
(6) (2)
(6) (3)
(6) (4)
(6) (5)
(6) (10)
(7) (1)
(7) (2)
(7) (3)
(7) (4)
(7) (5)
(7) (7)
(8) (2)
(8) (3)
(8) (4)
(8) (6)
(9) (4)
(9) (5)
(9) (7)
(9) (9)
(10) (1)
(10) (3)
(10) (5)
(13) (2)
•Display mode : 0.5s ON / 0.5s OFF, ( ) : Number of fl ashing,
Wired
Remote
Mode
Controller
Error Code
Communication Serial communication error
Remote controller communi-
Communication
cation error
Communication Scan error
Function setting Initial setting error
Function setting Indoor unit capacity error
Function setting Connection disabled (series error)
Connection unit number er-
Function setting
ror
Indoor unit Indoor unit main PCB error
Indoor unit Manual auto switch error
Indoor unit Room error
Indoor unit Indoor unit Heat Ex. sensor error
Indoor unit Indoor unit fan motor 1 error
Indoor unit Water Drain error
Indoor unit Indoor unit error
Outdoor unit Outdoor unit main PCB error
Outdoor unit Inverter PCB error
Active fi lter error, PFC circuit
Outdoor unit
error
Outdoor unit IPM error
Outdoor unit Display panel error
Outdoor unit Discharge thermistor error
Outdoor unit Compressor thermistor error
Outdoor unit Heat Ex. Sen-
Outdoor unit
sor error
Outdoor unit Outdoor thermistor error
Outdoor unit Suction Gas thermistor error
Outdoor unit Heat sink thermistor error
Sub-cool Heat Ex. gas
Outdoor unit
thermistor error
Outdoor unit Liquid pipe thermistor error
Outdoor unit Current sensor error
Outdoor unit Pressure sensor error
Outdoor unit Trip detection
Compressor motor control
Outdoor unit
error
Outdoor unit Outdoor unit fan motor 1 error
Outdoor unit 4-way valve error
Refrigerant system Discharge temperature 1 error
Refrigerant system Compressor temperature error
Refrigerant system Pressure error 2
Branch box Unit fl ow divider error
DESCRIPTION
• When the indoor unit cannot receive the signal from the branch unit
• When the branch unit cannot receive the signal from the indoor unit
•Wired remote controller communication error
•Check operation incompletion error (normally, operation disabled)
•Wiring mistake
•Indoor unit capacity error
•Combination error
•Connection unit number error (indoor unit)
•Connection unit number error (branch unit)
•Indoor unit PCB Model information error
•Manual auto switch error
•Inlet thermistor error
•Indoor unit Heat Ex. Middle thermistor error
•Main fan motor lock error
•Main fan motor revolution speed error
•Drain pump error
•Indoor unit error
•Outdoor unit PCB Model information error
•Outdoor unit PCB microcomputer communication error
•Inverter error
•Voltage error stoppage permanently
•Voltage error (can restore)
•Over current protected operation stoppage permanently
•PFC hardware error
•Trip terminal L error
•Microcomputers communication error
•Discharge thermistor 1 error
•Compressor thermistor 1 error
•Outdoor unit Heat Ex. liquid thermistor error
•Outdoor thermistor error
•Suction Gas thermistor error
•Heat sink thermistor error
•Sub-cool Heat Ex. gas inlet thermistor error
•Sub-cool Heat Ex. gas outlet thermistor error
•Liquid pipe thermistor 1 error
•Current sensor 1 error (stoppage permanently)
•Discharge pressure sensor error
•Suction pressure sensor error
•High pressure switch 1 error
•Trip detection
•Rotor position detection error (stoppage permanently)
•Duty error
•4-way valve error
•Discharge temperature 1 error
•Compressor 1 temperature error
•Low pressure error
•EEPROM access error
•Equipment type information error
•Serial communication error to outdoor unit
•Branch units serial communication error
•Serial communication error to indoor unit
•Liquid pipe thermistor error
•Gas pipe thermistor error
•Expansion valve full closure operation error
•Remote controller communication error
•Branch unit error
: 0.1s ON / 0.1s OFF
Remark
En-25