AA
36
English
Troubleshooting
If an error occurs,
is displayed on the wired remote control.
If you would like to see an error code, press the Test button.
Wired remote control
Display
Explanation
Remark
Compressor down due to protection control of the discharge
temperature sensor
Error about protection
control of the outdoor unit
Control due to the condenser temperature sensor when cool-
ing mode
Error of the low pressure switch (Protection control)
Reverse phase error (Protection control)
In removing frost
Error of the outdoor temperature sensor (Open/Short)
Error about the outdoor unit sensor
(Open/Short)
Detection during the
operation of the indoor unit (sensing
and sending errors into the commu-
nication data)
Error of condensor temperature sensor (Open/Short)
Error of discharge temperature sensor (Open/Short)
- 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 and the indoor
unit errors
Error of temperature sensor in the indoor unit (Open/Short)
Self-diagnosis of the indoor and
outdoor unit
Error of the heat exchanger sensor in the indoor unit (Open/
Short)
Error of electronic expansion valve open in the outdoor unit
(when it is detected more than once)
Error of electronic expansion valve close in the outdoor unit
(when it is detected more than once)
Error of communication between the indoor unit and the
wired remote controller
Wired remote controller errors
Master wired remote controllernSlave wired remote controller
COM1/COM2 Cross-installed error
Error of setting option for wired remote controller COM2
Summary of Contents for AC140NN4SEC/TL
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