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TROUBLESHOOTING
NOTES:
1. If circuit breaker is tripped, fuse is blown or RESET button on cord or plug is tripped more than once, contact a qualified electrician.
2. If unit is installed where condensation drainage could drip in an undesirable location, an accessory drain kit should be installed and connected to
drain system.
POSSIBLE CAUSES SOLUTIONS
UNIT DOES NOT START
• Unit may have become unplugged • Check that plug is securely in wall receptacle.
• RESET button on cord or plug may have tripped • Check RESET button on cord or plug. See Note 1.
• Fuse may have blown • Replace the fuse. See Note 1.
• Circuit breaker may have been tripped • Reset circuit breaker. See Note 1.
• Unit mode dial may be set to the OFF position • Switch mode dial to an operating mode.
UNIT NOT COOLING/HEATING ROOM
• Unit air discharge section is blocked • Make sure that curtains, blinds or furniture are not restricting or
blocking unit airflow.
• Temperature setting is not high or low enough • Reset to a lower or higher temperature setting.
• Unit air filters are dirty • Remove and clean filters.
• Room is excessively hot or cold when unit is started • Allow sufficient amount of time for unit to heat or cool the room.
Start heating or cooling early before outdoor temperature, cooking
heat or gatherings of people make room uncomfortable.
• Vent door left open • Close vent door.
UNIT MAKING NOISES • Clicking, gurgling and whooshing noises are normal during operation of
unit.
WATER DRIPPING OUTSIDE • If a drain kit has not been installed, condensation run-off during
very hot and humid weather is normal. See Note 2. If a drain kit
has been installed and is connected to a drain system, check
gaskets and fittings around drain for leaks and plugs.
WATER DRIPPING INSIDE
• Wall sleeve is not installed level • Wall sleeve must be installed level for proper drainage of condensation.
Check that installation is level and make any necessary adjustments.
ICE OR FROST FORMS ON INDOOR COIL
• Low outdoor temperature • When outdoor temperature is approximately 55 F or below, frost
may form on the indoor coil when unit is in Cooling mode. Switch
unit to FAN operation until ice or frost melts.
• Dirty filters • Remove and clean filters.