Before Calling For Service
To reduce the risk of electric shock, personal injury, or death, turn the fan control to the off
position and remove the unit plug from the wall outlet before doing any inspection or
maintenance work.
The following is a list of problems that are sometimes encountered when using a room air conditioner. Possible cause and
suggested remedies are given for each problem.
If the problem cannot be fixed using the suggested remedies, see
WHEN SERVICE IS REQUIRED
section.
WARNING
18
PROBLEM
POSSIBLE CAUSE
SUGGESTED REMEDY
UNIT WILL NOT RUN
No power to the unit.
Set Fan Control to position other than OFF.
Make sure plug is firmly held in outlet.
Check for blown fuses or tripped circuit breakers.
Call for service.
LITTLE OR NO COOLING
Obstructed indoor or outdoor air flow.
Remove obstruction from indoor grille or outdoor louvers.
Dirty air filters.
Clean the air filter. See Section V for details.
Unit undersized for application.
Temperature Control not properly set.
NOISY UNIT
Loose front of mounting assembly.
Tighten any loose parts.
Weak building construction.
Provide additional support for the unit.
Water hitting the fan blade.
Unit oversized for application.
(Compressor cycles on and off frequently.)
MOUNTING SUPPORT
Storm window frame has been installed into window.
NOT INSTALLED
FROST ON INDOOR COIL
Dirty air filter.
Normal for low outdoor temperatures.
ODORS IN COOLING
Mold, mildew, or algae formation on wet surfaces.
Some models require the storm window frame to be removed
before installation.
Normal in high humidity. Stop noise by removing drain plug or
adding a condensate drain.
Check with dealer to determine proper capacity unit for
application.
Check with dealer to determine proper capacity unit for your
application.
To reduce growth use algacide tablet in the unit base pan or
remove drain plug or add a condensate drain. Have your unit
thoroughly cleaned. See Section V.
Clean the air filter. See Section V for details.
Turning the Temperature Control to a lower number will reduce
occurrence and duration of frosting condition.
For cooling turn Temperature Control to higher number.
Call for service.
Oversized unit.
Check with dealer to determine proper capacity unit for
application.
Summary of Contents for AAC051FRB
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