9
Owner’s Manual
WPC-15000 / WPC-15003
SELF-DIAGNOSTIC ALARM CODES
Alarm Display
Problem
Cause
Correc ve Ac on
Frost preven on
sensor and Abnormal
temperature sensor
value
• Indoor heat
exchanger tempera-
ture too low
• TH3 temperature
sensor has a loose
or broken connec-
on
• Do not use the air
condi oner if ambient
temperature is lower
than 18°C (64°F)
• Contact a quali
fi
ed
service agent
Refrigerant high
pressure switch
• Blocked air
fi
lter
• Blocked / kinked
exhaust duct
• Ambient tempera-
ture is too high
• Clean air
fi
lter
• Ensure exhaust duct is
not blocked / kinked
• Do not use the air
condi oner if ambient
temperature is higher
than 45°C (113°F)
Abnormal tempera-
ture sensor value
TH1(Outlet) tem-
perature sensor has
a loose or broken
connec on
Contact a quali
fi
ed service
agent
Abnormal tempera-
ture sensor value
TH2(Inlet) tem-
perature sensor has a
loose or
broken connec on
Contact a quali
fi
ed service
agent
Compressor over-
loaded
• Ambient tempera-
ture is too high
• Unstable voltage
supply
• Defec ve compres-
sor
• Do not use the air
condi oner if ambient
temperature is higher
than 45°C (113°F)
• Contact a quali
fi
ed
service agent
• Replace compressor
Drain pump alarm
Drain pump defec ve
or improper hose con-
nec on (including kink
or blockage)
• Check the aconnec on
and hose
• Replace drain pump
Table 1- Alarm Codes
