11
WPC-18000
Owner’s Manual
SELF-DIAGNOSTIC ALARM CODES
Alarm Display
Problem
Cause
Solutions
Abnormal
temperature
• Ambient
temperature is
too low
• Temperature sensor
is damaged, loose or
short/open
• Do not use the air
conditioner if ambient
temperature is below
18°C (64°F)
• Contact a qualified
service agent
High Pressure
• Blocked Air filter
• Blocked exhaust duct
• Ambient
temperature is too
high
• Clean air filter
• Ensure duct is not
blocked or kinked
• Ensure the working tem
-
perature is below 45°C
Abnormal
temperature
TH1(Outlet) tempera-
ture sensor has a loose
or broken connection
Contact a qualified
service agent
Abnormal
temperature
TH2(Inlet) temperature
sensor has a loose or
broken connection
Contact a qualified
service agent
Compressor
overloaded
• Ambient
temperature is too
high
• Unstable voltage
supply
• Defective
• Do not use the air
conditioner if ambient
temperature is above
45°C (113°F)
• Contact a qualified
service agent
• Replace the compressor
Table 1- Alarm Codes
NOTE: The alarm code will be displayed on CURRENT TEMP display
