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70
FlexFit Pro
4. Error Code
4.1 Failure code indoor unit
AL24LP2VHA AL36LP2VHA AL48LP2VHA
LED ash times of
indoor PCB
LR.Recever
digital display
Contents of malfunction Possible reasons
LED4 LED1
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, malfunction of slave unit
programming in MAXI system; faulty
PCB.
0 8 08
Abnormal communication between
wired controller (or IR reciever) and
indoor unit
Wrong connection or wired controller
broken, or PCB faulty
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 Indoor unit DC fan motor abnormal
Fan motor disconnected, faulty wiring,
motor failure, or faulty circuit to motor
Note:
1. The outdoor failure can also be indicated by the indoor unit, the checking method as follows: If the outdoorerror
code is M (DECIMAL) , the indoor unit's I.R. receiver display will show the after converted hexadecimal code of
"M+20" (DECIMAL) , for example, if the outdoor error code is 2, the indoor unit I.R. receiver display will ash the
error code 16 (2→2+20=22→change deciaml 22 to hexadecimal code, get 16)
2. LED4 is a red one on the indoor PCB, LED1 is a yellow one.
3. To get much more details about the out door unit failure, please refer to the outdoor unit trouble shooting list.
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