SERVICE
TROUBLESHOOTING
9
Occurrence
Possible Cause
Solutions
Air conditioner will not operate
• Wall plug disconnected.
✔
Push plug firmly into wall outlet.
• House fuse blown or circuit breaker tripped.
✔
Replace fuse with time delay type
or reset circuit breaker.
• Unit turned off and then on too quickly.
✔
Wait 3 minutes before restarting.
• Thermostat set too low for cooling.
✔
Adjust thermostat to lower temperature.
Air from unit does not
• Unit in Fan mode.
✔
Set Mode to Cool.
feel cold enough
• Temperature set too high.
✔
Set thermostat to lower temperature.
• Room temperature below 70°F.
✔
Cooling may not occur until room
temperature rises above 70°F.
Air conditioner cooling,
• Outdoor temperature below 70°F.
✔
To defrost the coil, set mode to Fan.
but room is too warm —
Then, set thermostat to warmer temperature.
ice forming on cooling coil
• Dirty air filter — air restricted.
✔
Clean filter. See “Cleaning the Air Filter” section.
behind decorative front
To defrost, set mode to Fan.
Air conditioner cooling,
• Dirty air filter — air restricted.
✔
Clean air filter.
but room too warm —
Refer to “Cleaning Air Filter” section.
NO ice forming on cooling coil
• Thermostat set too warm.
✔
Set thermostat to colder temperature.
behind decorative front
Noise when unit is cooling
• Air movement sound.
✔
The sound of rushing air is normal. If too loud,
Fan Speed to Low setting.
• Sound of fan hitting water-
✔
This is normal when humidity is high.
moisture removal system.
Close doors, windows and registers.
• Window vibration — poor installation.
✔
Refer to installation instructions —
check with installer.
Water dripping inside
• Improper installation.
✔
Tilt air conditioner slightly to the outside to
when unit is cooling
allow water drainage. Refer to installation
instructions — check with installer.
Water dripping outside
• Unit removing large quantity of moisture
✔
This is normal during excessively humid days.
when unit is cooling
from humid room.
Troubleshooting Guide
Filter
Louvers
A
B
A
B
Insufficient Cooling
• Shut all windows and doors in room.
• Remove any obstructions from inside and outside louvers.
• Inspect filter and clean if dirty.
• Under certain conditions the cooling coils directly behind the
filter, may ice up and block the airflow. This is a common
occurrence in air conditioners caused when the outside
temperature drops below 70°F (21°C) while the humidity remains
high. If this happens, simply turn the unit off and allow the ice to
melt, then resume normal operation.
Directing Airflow
Unit is engineered with adjustable louvers to direct discharge airflow.
Louvers are manually adjusted by moving levers in direction of
desired airflow (Fig. 21).
Cleaning Air Filter
EVERY TWO WEEKS: Clean the filter.
1. Turn unit off.
2. Remove the air filter by grasping the top corners and pulling it up
and out of the unit (Fig. 21).
3. Wash in hot soapy water, rinse and shake dry.
4. Replace the filter, with the front of the filter toward you.
5. To dry the filter thoroughly, run your unit for a few minutes.
Remember, only a clean filter works properly and delivers top
efficiency at every setting.
Service
To save time and expense, check the following before calling an authorized servicer.
Proper use and care of your air conditioner will help ensure longer life of the unit.
It is recommended to annually inspect and clean the coils and condensate water
passages. Expense of annual inspection is the consumers’ responsibility.
21
CAUTION
Failure to keep air filter clean will result in poor air circulation. DO
NOT operate without filter. This can render the unit inoperative.
CAUTION
Before cleaning or servicing this unit, it is recommended that
the unit be disconnected from any electrical supply outlet.
