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Troubleshooting Guide /
Frequently, a problem is minor and a service call may not be necessary, use this troubleshooting guide for a
possible solution.
PROBLEM
POSSIBLE CAUSE
SUGGESTED SOLUTION
Air conditioner will
not operate
No power to the unit.
Check connection of power cord to
power source.
Check fuse or circuit breaker.
Turn the power switch to ON.
Inefficient or no cooling
Dirty air filter.
Clean or replace air filter.
Inappropriate capacity
for application.
Check with dealer to determine proper unit
capacity for application.
Blocked air flow.
Remove obstruction from grille or
outdoor louvers.
Power interruption, settings
change too quickly, or
compressor overload tripped.
Let fan run to restart compressor
(in approximately 10 minutes).
Noisy unit
Loose parts.
Tighten loose parts.
Inadequate support.
Provide additional support to unit.
Odors
Formation of mold, mildew, or
algae on wet surfaces.
Remove drain plug and drain base pan.
Replace drain plug.
Clean unit thoroughly.
Water dripping outside
Condensation run-off is normal
during hot and humid weather
Add flexible tubing to redirect water flow.
Water dripping inside
Unit is not properly angled to
allow water to drain outside.
Unit must be installed on an angle for proper
condensation run-off. Check the unit and
make adjustments.
Ice or frost build-up
Low outside temperature.
When outdoor temperature is approximately
65"For below, frost may form when unit is in
cooling mode. Switch unit to FAN ONLY
operation until frost melts.
Unit air filter is dirty.
Remove and clean filter.
NOTE:
If circuit breaker is tripped repeatedly, or fuse is blown more than once, contact a qualified technician.
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