73
AM24LP2VHA AM36LP2VHA AM48LP2VHA
LED ash times of
indoor PCB
Wired
controller
display
Description Possible reasons
LED4 LED3
0 1 01
Malfunction of indoor unit ambient
temperature sensor
Sensor disconnected, broken, shorted,
or at wrong position.
0 2 02
Malfunction of indoor unit piping
temperature sensor
Sensor disconnected, broken, shorted,
or at wrong position.
0 4 04 PCB EEPROM error
EEPROM chip disconnected, broken,
or programmed incorrectly.
PCB defective.
0 7 07
Abnormal communication between
indoor and outdoor units
Poor wiring connections, faulty
wiring, poor power supply, incorrect
addressing of indoor units, faulty PCB.
0 8 08
Abnormal communication between
wired controller and indoor unit
Wrong connection or wired controller
broken, or PCB hardware malfunction
0 12 0C Malfunction of drain system
Condensate pump disconnected
or faulty, oat switch a wrong
position, disconnected or faulty, or a
disconnection of the short circuit bridge
0 13 0D Zero cross sigal wrong Zero cross signal not detected
0 14 0E
Abnormal communication between
main control PCB & fan motor drive
Fan motor disconnected, faulty wiring,
motor failure, or faulty circuit to motor
0 15 0F Fan motor overcurrent Fan motor current too high
0 17 11 DC voltage high or low
DC voltage of the fan motor driver too
high or too low
0 18 12 F.M.D temperature high Fan motor driver over 95°C
0 19 13 Fan motor out of step Wrong rotor location detected
M (≥1) N (≥0) / Error of the outdoor unit See note 1,2
High Static Duct Models
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