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The following is a list of problems that are sometimes encountered when using a room air conditioner. Possible
•
UNIT WILL NOT RUN
Push reset button on power cord.
Set Fan Control to position other than OFF.
Make sure plug is firmly seated in outlet.
Check for blown fuses, tripped circuit breakers.
•
LITTLE OR NO COOLING / LITTLE OR
NO HEATING (fan and compressor run)
Set vent to CLOSED
Remove obstruction from indoor grill or outdoor
louvers.
Dirty air filter. Clean or replace as needed.
Check with dealer to determine proper capacity
unit for application.
TROUBLESHOOTING
cause and suggested remedies are given for each problem.
•
NOISY UNIT
Tighten any loose parts.
Provide additional support for unit.
Normal in high humidity. Stop noise by
removing drain plug or adding condensate drain
cup.
Check with dealer to determine proper capacity
unit for application.
•
MOUNTING SUPPORT NOT INSTALLED
Some models require removal of storm window
frame before installation.
•
FROST ON INDOOR COIL
Clean air filter by vacuuming or washing with
water and mild soap.
Turn Temperature Control to warmer setting
reduces occurrence and duration of frost.
Page 15 of 17
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