35English
Appendix
4 way Cassette
Abnormal conditions
LED lamp display
Remarks
Operation Defrost Timer Filter
Power reset XXX
Error of temperature sensor in the indoor unit
(Open/ Short)
X
XX
Error of heat exchanger sensor in the indoor unit
(Open/Short)
XX
Error of fan motor in the indoor unit X X
X
Error of the outdoor temperature sensor
Error of the condensor temperature sensor
Error of the discharge temperature sensor
X X
No communication for 2 minutes between
indoor and outdoor unit (communication error
for more than 2 minutes)
X
X
Error of outdoor unit
Error of the terminal block thermal fuse (Open)
X
Detection of the float switch X X
EEPROM ERROR
EEPROM option error
Outdoor valve clogging error X
MDS (Motion Detecting Sensor) Error XX
Error due to connecting outdoor units that do not
support the Wind-Free function
X
: On, : Flickering, X : Off
ŷ If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
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