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Troubleshooting
AA
Display Explanation
Compressor down due to outdoor freezing detection
Compressor down due to outdoor overload protection
Compressor down due to protection control of the discharge
temperature sensor
3Phase power source miss wiring error
Outdoor of operation temperature range in
heating(Over36℃)
Control due to the condenser temperature sensor when
cooling mode
Error of the low pressure switch (Protection control)
Fan error of outdoor unit
Error of the outdoor temperature sensor (Open/Short)
Error of condensor temperature sensor (Open/Short)
Error of discharge temperature sensor (Open/Short)
Floating switch error of indoor unit
Fan error of indoor unit
Indoor terminal block thermal fuse error
Error of temperature sensor in the indoor unit (Open/Short)
Error of the heat exchanger input sensor in the indoor unit
(Open/Short)
Error of the heat exchanger output sensor in the indoor unit
(Open/Short)
Error of electronic expansion valve close in the outdoor unit
(when it is detected more than once)
Indoor unit address overlap error
- System down caused by communication error after comple-
tion of tracking
- Mismatching of the indoor unit numbers set with those
communication after completion of 5 times tracking
Communication error between indoor and outdoor
Error of communication between the indoor unit and the
wired remote controller
Master wired remote controller and slave wired remote
controller
COM1/COM2 Cross-installed error
Error of setting option for wired remote controller COM2
Remark
Error about protection control
of the outdoor unit
Error about the outdoor
unit sensor (Open/Short)
Detection during the opera-
tion of the indoor unit (sens-
ing and sending errors into
the communication data)
Self-diagnosis of the indoor
and outdoor unit
Communication and the indoor
unit errors
Wired remote controller errors
English
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