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Troubleshooting
Possible Causes Solutions
Unit Does Not Start
• Unit may have become unplugged
• Fuse may have blown
• Circuit breaker may have been tripped
• Unit may be off
• Unit may be in a protection mode
• Check that plug is plugged securely in wall receptacle.
NOTE: Plug has a test/reset button on it. Make sure the plug has not
tripped.
• Replace the fuse. See Note 1.
• Reset circuit breaker. See Note 1.
• Turn unit on (bottom right button on keypad).
Unit Not Cooling/Heating Room
• Unit air discharge section is blocked
• Temperature setting is not high or low enough
• Unit air filters are dirty
• Room is excessively hot or cold when unit is started.
• Vent door left open
• Unit may be in a protection mode
• Compressor is in time delay
• Make sure curtains, blinds or furniture are not restricting or blocking
unit airflow.
• Reset to a lower or higher temperature setting.
• Remove and clean filters.
• 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.
• Close vent door.
• Wait approximately 3 minutes for compressor to start.
Display Has Strange Numbers/Characters On It
• The unit may be in a protection mode.
• The unit may be set for °C (instead of °F).
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 runoff during 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
Dirty filters
• 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. Remove and clean
filters.
Compressor Protection
Power may have cycled, so compressor is in a
restart protection
• Random Compressor restart – whenever the unit is plugged in,
or power has been restarted, a random compressor restart will
occur. After a power outage, the compressor will restart after
approximately 3 minutes.
• Compressor Protection – to prevent short cycling of the
compressor, there is a random startup delay of 3 minutes and a
minimum compressor run time of 3 minutes.
Electric Heating Failure
• Clean the evaporator once every three months.
NOTES:
1.
If circuit breaker is tripped or fuse is blown 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.
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