rev0-2011
Operating Instruction & Parts Manual
SELF DIAGNOSTIC CODES
The alarm light is activated if abnormal operation occurs, and an error code is displayed on the control panel.
I
n this case, the compressor will stop operating.
Error Code Problem Cause Corrective Action
Water full
Align water tank
High pressure
Low pressure
Sensor Problem
Anti-Freezing
alarm
Fire alarm signal
Condensate tank is full Empty the water tank
Water tank is not posi-
tioned correctly
Place the water tank
in right position
Blocked air filter
Blocked / kinked exhaust duct
Ambient temperature is too high
Ensure exhaust duct is not
blocked / kinked
Do not use the air conditioner if
ambient temperature is higher
than 113℉
Temperature sensor has
an electric short.
Exchange temperature sensor
(Contact Airrex U.S.A. at 1-888-
535-8841)
Evaporator is below 25 ℉
(-4 ℃) due to being used in a
low ambient
temperature area.
Do not use the unit in an ambient
temperature less than 72℉ (22℃).
Check refrigerant level.
Fire alarm signal is received
from Fire alarm system.
Reset unit by pushing and
holding the "OFF TIMER" button
for 5 seconds.
Verify Electrical
Refrigerant may be low
Clean Filters and Coils
Verify Power (Voltage/Amps)
Check Filters Evaporator/Condenser
Check Evaporator/Condenser Coils
Check refrigerant level and/or
refrigerant leak.
To Next Page
