Unit is unplugged.
Blown fuse.
Tripped circuit breaker.
Unit is turned off.
Unit is in a protection mode.
Check that plug is securely connected to outlet.
Note: Plug has a test/reset button on it. Make sure that the plug
has not tripped.
Replace fuse. See Note 1 below.
Reset circuit breaker. See Note 1 below.
Turn unit on (bottom right button on keypad).
UNIT NOT COOLING/HEATING ROOM
Air discharge section is blocked.
Temperature setting is not high or low enough.
Note: Setpoint limits might not allow unit to
heat or cool the room to the temperature
desired. Check section on DIP switch settings.
Air filters are dirty.
Room is excessively hot or cold when unit starts.
Vent door left open.
Unit may be in a protection mode.
Compressor is in a time delay.
Make sure curtains, blinds, and/or furniture are not restricting or
blocking unit’s 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 before outdoor temperature, cooking heat,
or people make room uncomfortable.
Close vent door.
Check DIP switch 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 have been set for °C instead of °F.
Clicking, gurgling, and whooshing noises are normal during
operation.
If a drain kit has not been installed, condensation runoff during hot
and humid weather is normal. See Note 2 below.
If a drain kit has been installed and is connected to a drain system,
check gaskets and fittings around drain for leaks and plug them.
Wall sleeve is not installed properly.
Wall sleeve must be installed correctly for proper drainage of
condensation. Check that installation is levelled and make any
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.
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 compressor,
there is a random startup delay of 3 minutes and a minimum
compressor run time of 3 minutes.
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.
To Next Page
Loading...
