Troubleshooting - COMFORT-AIRE Room Air Conditioners Installation & Operation Manual

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. 23).
Cleaning Air Filter
EVERY TWO WEEKS: Clean the filter.
1. Turn Master Control to OFF.
2. Remove the air filter by grasping the top corners and pulling it up
and out of the unit (Fig. 23).
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
performance. (_ Filter O Louvers
Note: Failure to keep air filter clean will result in poor air circulation.
DO NOT operate without filter, This can render the unit inoperative,
Troubleshooting Guide
Occurrence
Air conditioner will not operate
Air from unit does not feel
cold enough
Air conditioner cooling, but room is too
warm-- ice forming on cooling coil
behind decorative front
Air conditioner cooling, but room is too
warm-- no ice forming on cooling coil
behind decorative front
Noise when unit is cooling
Water dripping inside when unit is
cooling
Water dripping outside when unit is
cooling
Possible Cause
• Wall plug disconnected.
• House fuse blown or circuit breaker tripped,
• Unit turned off and then on too quickly.
• Adjust thermostat to lower temperature.
• Unit in Fan mode.
• Temperature set too high.
• Room temperature below 70°E
• Outdoor temperature below 70°E
• Dirty air filter -- air restricted.
• Dirty air filter -- air restricted.
• Thermostat set too warm.
• Air movement sound.
• Sound of fan hitting water-moisture removal
system.
• Window vibration -- poor installation.
• Improper installation.
• Unit removing large quantity of moisture from
humid room.
Solutions
Push plug firmly into wall outlet.
Replace fuse with time delay type
or reset circuit breaker.
Wait 3 minutes before restarting.
Adjust thermostat to lower temperature.
• Set Mode to Cool.
• Set thermostat to lower temperature.
• Cooling may not occur until room
temperature rises above 70°F.
To defrost the coil, set mode to Fan.
Then, set thermostat to warmer
temperature.
Clean filter. See "Cleaning the Air
Filter"section. To defrost, set mode to Fan.
• Clean air filter.Refer to "Cleaning Air Filter"
section.
• Set thermostat to colder temperature.
The sound of rushing air is normal.
If too loud, Fan Speed to Low setting.
This is normal when humidity is high.
Close doors, windows and registers.
Refer to installation instructions -- check
with installer.
• Tilt air conditioner slightly to the outside to
allow water drainage. Refer to installation
instructions -- check with installer.
This is normal during excessively
humid days.
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