YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
50
33
★
○
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Indoor temperature sensor
failure
Indoor temperature sensor is loose
Indoor temperature sensor failure
Indoor control board failure
36
○
★
○
Communication failure
between indoor and
outdoor unit
Communication cable is loose
Communication cable failure
Connection between the filter board and
outdoor control board is incorrect or loose
Connection between the filter board and
terminal is incorrect or loose
Indoor control board failure
Power board failure
Outdoor control board failure
38
○
○
X
Indoor EEPROM failure
EEPROM chip is loose
Indoor control board failure
39
○
○
★
Indoor fan motor running
abnormally
Indoor fan motor is blocked
Fan motor cord connection is loose
Fan motor failure
Indoor control board failure
41
X
X
★
Indoor ground protection
failure
Indoor control board failure
A room temperature sensor failure is displayed if the sensor does not respond for over 5 seconds.
A heat exchange temperature sensor failure is displayed if the sensor does not respond for over 5 seconds.
A failure is displayed when the settings data does not match after the EEPROM self-checks two times.
A ground signal failure is displayed if the signal is not detected after the air conditioning system is powered ON.