Use And Care Manual
Page 20
8
TROUBLESHOOTING TIPS
Troubleshooting
Tips
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 the plug is plugged securely in wall
receptacle. If not, plug in securely.
Note: Plug has a test/reset button on it. Make sure
that 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.
Note: Setpoint limits may not
allow the unit to heat or cool
the room to the temperature
desired. Check section on
dipswitch settings.
• 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 that curtains, blinds, or furniture are not
restricting or blocking airflow. If so, move those
items to allow for proper airflow.
• Reset to a lower or higher temperature setting.
• Remove and clean filters.
• Allow sufficient amount of time for the unit to heat
or cool the room. Also please note that other heat
sources, such as cooking and increased occupancy,
can also affect the time required to heat or cool the
room.
• Close vent door.
• Check dipswitch and wall thermostat settings for
desired comfort.
• 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, gurging and whooshing noises are normal
during operation of unit.
WATER DRIPPING OUTSIDE
• If a drain kit has not been installed, condensation
runoff 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.