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Wall Mounted Multi-Zone Split System Air Conditioner
Troubleshooting Guide
■ Error Indicator
• The self-diagnosis function of the air conditioner is used to identify any troubles that may exist.
• Refer to the table below to determine the error code associated with the LED signals given by the indoor air con-
ditioner's display.
• If more than two problems occur simultaneously, one error code of most severity is displayed.
• After an error has occurred, if the error is fixed/cleared, the LED display representing the error code (shown in
the table below) will also be cleared simultaneously.
• To operate the unit after the occurrence of an error code, it is best to power off the unit and then power on again.
Self-diagnosis Function
00 No Error ON
01 Indoor Room Thermistor Error 1 time OFF
02 Indoor In-Piping Error 2 times OFF
05 Communication Error between In and Out 5 times OFF
06 Indoor Out-Piping Error 6 times OFF
07 Differnt mode operation 7 times OFF
10 Indoor fan motor locked error 1 times OFF
Error code Description MPS Variable LED1 LED2 Indoor Status
33 D-Pipe High(Normal) 3 times 3 times OFF
44 Outdoor Air Thermistor Error(Open/Short) 4 times 4 times OFF
45 Cond Pipe Thermistor Error(Open/Short) 4 times 5 times OFF
47
Const. D-Pipe Thermistor Error(Open/Short)
4 times 7 times OFF
51 Capcity Error(High/Low)
5 times 1 times OFF
Error code Description MPS Variable LED1(Red) LED2(Green) Indoor Status
Indoor Error
Outdoor Error
LED1
LED2