Fujitsu AMUG24LMAS Service Manual page 50

Error display
Operation Timer
indicator indicator
lamp (green) lamp (orange)
(10)
: 0.5s on / 0.5S off
( ) : Number of flashing
Wired
Description
remote control
Economy
indicator
error code
lamp (green)
Serial communication error
Wired remote control communication error
External communication error
Combination error
Address setting error
in wired remote control system
Connection unit number error
(indoor unit wired remote control error)
Indoor unit PCB model information error
Manual auto switch error
Indoor unit communication circuit
(wired remote control) error
Room temperature sensor error
Indoor unit heat-exchanger
middle temperature sensor error
Indoor unit fan motor error
Outdoor unit PCB model information error
Inverter error
Active filter voltage error
IPM error
Discharge temperature sensor error
Compressor temperature sensor error
Outdoor unit heat-exchanger
liquid temperature sensor error
Outdoor temperature sensor error
Current sensor 1 error (Stoppage permanently)
High pressure switch error (24/30)
Outdoor unit discharge pressure sensor error (36/48)
Outdoor unit trip detection
Compressor motor control error
(Stoppage permanently)
Outdoor unit fan motor 1 error
4-way valve error
Coil (expansion valve) error
Discharge temperature error
Compressor temperature error
: 0.1s on / 0.1S off
03-02
Trouble
shooting
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