13
Owner’s Manual
K6HK144BBA2ACA0 / K6HK144BEA2ACA0
SELF-DIAGNOSTIC ALARM CODES
Alarm Code
Possible Causes
What To Do
Frost on heat
exchanger
Indoor heat
exchanger
temperature too low
• Do not use the air
conditioner if ambient
temperature is lower than
18°C (64°F)
• Contact a qualified
service agent
Abnormal
temperature
sensor value
TH1(Evaporator coil)
temperature sensor
has a loose or broken
connection
Contact a qualified service
agent
Abnormal
temperature
sensor value
TH2(Evaporator coil)
temperature sensor
has a loose or broken
connection
Contact a qualified service
agent
Abnormal
temperature
sensor value
TH3(Evaporator coil)
temperature sensor
has a loose or broken
connection
Contact a qualified service
agent
Table 1- Alarm Codes
