WARNING
CAUTION
WARNING
WARNING
PROBLEM
System does not restart.
Indoor unit emits unpleasant
odor when started.
You hear a “water flowing”
sound.
A thin fog or vapor coming
out of the indoor unit when
system is running.
You hear a slight cracking
sound when the system
stops or starts.
The system will not run.
Cooling not running
efficiently.
CAUSE/SOLUTION
Cause:
The system has a built-in three-minute delay to prevent short and/or rapid cycling
of the compressor.
Solution:
Wait three minutes for the protection delay to expire.
Cause:
Typically unpleasant odors are the result of mold or mildew forming on the coil
surfaces or air filter.
Solution:
Wash indoor air filter in warm water with mild cleaner. If odors persist, contact
a qualified service professional to clean the coil surfaces.
Cause:
It is normal for the system to make “water flowing” or “gurgling” sounds from
refrigerant pressures equalizing when the compressor starts and stops.
Solution:
The noises should discontinue as the refrigerant system equalizes after two or
three minutes.
Cause:
It is normal for the system to emit a slight fog or water vapor when cooling
extremely humid warm air.
Solution:
The fog or water vapor will disappear as the system cools and
dehumidifies the room space.
Cause:
It is normal for the system to make “slight cracking” sounds from parts expanding
and contracting during system starts and stops.
Solution:
The noises should discontinue as temperature equalizes after two or three minutes.
Cause:
There are a number of situations that will prevent the system from running.
Solution:
Check for the following:
• Circuit breaker is “tripped” or “turned off.”
• Power button of remote is not turned on.
• Batteries in the remote controller are low.
• Remote controller is in sleep mode or timer mode.
• Otherwise, you should contact a qualified service professional for assistance.
Cause:
With routine maintenance, your system is designed for years of peak efficiency.
Solution:
Check the following:
• Remove obstructions blocking airflow into the room.
• Clean dirty or blocked indoor air filter that is restricting airflow into the system.
• Seal outdoor air leaks in the room space from door or windows.
• Relocate (if possible) other heating sources in the room space.
19
20
TROUBLESHOOTING
Do not attempt any repairs on the unit yourself. Incorrect repair can cause shock or fire.
Always call a qualified service professional. Using these troubleshooting suggestions can
save time when you contact the qualified service professional.
WARNING
CAUTION
WARNING
CAUTION
Stop operation and call for service in the following circumstances:
• You hear a harsh or unusual sound during operation
• Unusually foul odor is emitted during operation
• Circuit breaker trips frequently, or unit stops
abnormally often
TROUBLESHOOTING
TROUBLESHOOTING
PROBLEM
Wireless remote controller
lost or does not work.
Water leaking from
indoor unit into the room.
The unit will not deliver air.
Moisture or condensation
on the discharge
air louvers or outlet vents.
CAUSE/SOLUTION
Cause:
There are a number of possible reasons.
Solution:
Check the following:
• The batteries might be low. Change the batteries.
• The remote controller must be within 25 ft. (7.6 m) with no obstructions of the
indoor unit. If remote controller is lost or damaged and needs to be replaced,
contact your qualified service professional for assistance. In the meantime,
use the manual override mode to operate the system.
Cause:
While it is normal for the system to generate condensate water in cooling mode,
it is designed to drain this water to the outdoors via a condensate drain tube.
If water is leaking into the room, it may indicate one of the following.
Solution:
• The indoor unit is not level right to left. Level indoor unit.
• The condensate drain tube is restricted or plugged. All restrictions must be
removed to allow continuous gravity force drainage.
• If problem persists, contact a qualified service professional for assistance.
Cause:
There are a number of system functions that will prevent the indoor fan from running.
Solution:
In dry mode, the indoor fan may stop for up to three minutes during the
compressor off delay. Otherwise, you should contact a qualified service
professional for assistance.
Cause:
It is normal for the system to develop condensation or moisture on the
discharge air louvers when cooling warm humid air for a long period of time.
Solution:
The condensation or moisture will disappear as the system cools and
dehumidifies the room space.
• Water is leaking in the room
• Liquid is spilled into unit
• You notice a burning smell or
see smoke
