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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. If the unit continues to operate improperly, call Danby’s Toll Free Number 1-800-263-2629 for
assistance, or call one of our service depots listed in the enclosed “Authorized Service Depot” listing provided
with this unit.
Difficulty Possible Cause Suggested Solution
Air conditioner will No power to unit. Check connection of power cord to
not operate. power source.
Check fuse or circuit breaker.
Inefficient or no cooling. Dirty air filter. Clean or replace air filter.
Unit size inappropriate Check with dealer to determine proper unit
for application. capacity for application.
Blocked air flow. Remove obstruction from grill or
outdoor louvers.
Power interruption, settings Turn the unit off and wait 5 minutes before
changed too quickly, or attempting to re-start.
compressor overload tripped.
Noisy unit. Loose parts. Tighten loose parts.
Inadequate support. Provide additional support to unit.
Odors. Formation of mold, mildew, or Clean unit thoroughly.
algae on wet surfaces. Place algaecide tablet in base pan.
Water dripping outside. Hot and humid weather. Condensation run-off is normal under these
conditions.
Water dripping inside. Unit is not properly angled to Unit must be installed on an angle for proper
allow water to drain outside. condensation run-off. Check the unit and
make any adjustments.
Ice or frost build-up. Low outside temperature. When outdoor temperature is approximately
65°F or 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.
NOTES: 1. If circuit breaker is tripped repeatedly, or fuse is blown more than once, contact a
qualified technician.
2. When unit is installed using proper installation steps, unit is properly tipped towards the outdoors
to allow for condensation run-off.
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