Owner's Manual

11
Table 3 — Troubleshooting
LEGEND
Table 4 — Unit Protection Devices
Fill out the following to save time on any future service calls.
Dealer’s Name _____________________________________________________________________________________________
Address ___________________________________________________________________________________________________
Telephone _________________________________________ Purchase Date _________________________________________
Indoor Model #_____________________________________ Outdoor Model #_______________________________________
Indoor Serial # _____________________________________ Outdoor Serial # _______________________________________
PROBLEM POSSIBLE CAUSE SOLUTION
Unit/System Does Not Work
• The circuit breaker has tripped or a fuse has
blown.
• Power failure.
• Green or Orange LED is flashing on and off,
which could indicate an indoor or outdoor unit
fault.
• Voltage is too low.
• Reset the circuit breaker or replace the fuse with the
specified replacement fuse.
• Restart operation when the power is restored.
• Call your service representative.
• Call your service representative.
Cooling is Not Working Properly
• The filter is blocked with dust.
• Temperature is not set properly.
• A window or door is open.
• The outdoor unit is obstructed.
• The fan speed is too low.
• The operation mode is in Fan or Auto instead of
Cool.
• Clean the air filter.
• Check the temperature and reset if necessary.
• Close the window or door.
• Remove the obstruction.
• Change the fan speed selection.
• Change the operating mode to Cool or reset the unit.
Heating is Not Working Properly
• The filter is blocked with dust.
• Temperature is set too low.
• A window or door is open.
• The outdoor unit is obstructed.
• Clean the air filter.
• Check the temperature and reset if necessary.
• Close the window or door.
• Remove the obstruction.
Unit Stops During Operation
• The Off timer is not operating correctly.
• Green or Orange LED is flashing on and off,
which could indicate an indoor or outdoor unit
fault.
• Restart the operating mode.
• Call your service representative.
LED — Light Emitting Diode
TYPE OF PROTECTION EFFECT OF PROTECTION OPERATING MODE
Indoor Coil High Temperature Protection Compressor speed slow down or off
Heating and Auto mode at high
outdoor temperatures
Indoor Coil Freeze Up Protection Compressor speed slow down or off
Cooling, Dehumidification and Auto mode
at low outdoor temperatures
Discharge Gas High Temperature Protection Compressor speed slow down or off
Cooling, Heating, Dehumidification and
Auto mode outdoor temperatures
Frequent Compressor Cycling Compressor time delay All
During heating operation the unit may defrost to remove
ice that might collect on the outdoor unit. During defrost,
the indoor fan will automatically stop, the louver will be
fixed at a horizontal position and can not be changed until
the defrost cycle is completed. Forcing the louver to
change its position during defrost could result in equipment
damage.