Wall plug is disconnected.
Insert plug firmly into proper wall outlet.
House fuse blown or circuit breaker tripped.
Replace fuse with time delay type or reset circuit breaker.
Press the RESET button on the power cord. If power cord is
damaged replace power cord.
Turn unit ON and set to desired setting.
Ribbon cable to control panel is
disconnected.
Remove outer shell and reconnect cable.
Loose or disconnected wiring on main PCB.
Remove outer shell. Check all connections to the PCB and
reconnect any loose or disconnected leads.
Condensate water tray is full and/or water
light is on.
Drain condensate water. Make sure water level switch is
operating correctly and not stuck in “full” position or being
interfered with.
Unit does not blow cold air.
Room temperature is below 61ºF(16ºC.)
Cooling will not occur until room temperature rises above
61ºF(16ºC.)
Unit is not in cooling mode.
Set the unit to cooling mode – blue light is on.
Set temperature is too high.
Set to a Lower temperature.
Exhaust air duct is installed incorrectly or
blocked.
Connect exhaust duct so if functions correctly. Clear blockage.
Find leak and repair. Recharge with refrigerant.
The unit needs to defrost and will resume normal operation after it
is finished.
Unit blows cold air but
does not lower room
temperature.
Fan speed is set too low.
Increase fan speed to improve air flow.
Exhaust air duct is not installed, is installed
incorrectly or blocked.
Connect exhaust duct so if functions correctly. Clear blockage.
Reduce room size, add another unit or larger unit.
Close all open windows and doors.
Ambient temperature is too high.
The unit may not work if the room temperature is above 90°F.
Room has too many heat sources.
Remove or shut off additional heat sources. Close curtains or
blinds to minimize the amount of direct sunlight entering the room.
The condenser coils are dirty.
Carefully vacuum the coils clean.
Unit continues to operate
after water tray is full or
water full protection occurs
frequently.
Water level switch is open or short circuited.
Check water level switch connections or replace water level switch
if defective.
Water level switch is stuck in “empty”
position.
Make sure water level switch is operating correctly and not stuck
or being interfered with.