4
Troubleshooting ............................................................................................................ 40
Typical Start-up Problems ................................................................................................... 40
Unit Does Not Start-up ........................................................................................................ 40
Power Switch Light is Off ...................................................................................................... 40
Power switch light is on and the thermostat light is off .......................................................... 40
Power switch light is on and the thermostat light is on .......................................................... 40
Unit is operating and blows evaporator air, ........................................................................ 41
Problems Controlling Space Temperature ............................................................................ 41
Space Temperature is too cold when unit is not running ....................................................... 41
Problems Controlling Space Humidity ................................................................................... 42
Humidity too low or supply air is too cold, without optional humidifier .................................... 42
Humidity too low, without optional humidifier ......................................................................... 42
Humidity too low with optional humidifier ............................................................................... 42
Humidity too high when unit is running but not cooling .......................................................... 42
Humidity too high when unit is not running ............................................................................ 43
Humidity too high when unit is running and cooling ............................................................... 43
Other Miscellaneous Problems ............................................................................................. 43
Unit operates but the power switch light is not ON ................................................................ 43
Unit is leaking water .............................................................................................................. 43
Unit is running properly, but the sound of the unit is objectionable ........................................ 43
Noise is from airflow .............................................................................................................. 43
Redirect airflow ..................................................................................................................... 43
Basic Troubleshooting ............................................................................................ 44
-45
Advanced Troubleshooting ..................................................................................... 46
-47
High Pressure Switch has Shut Down the Unit .......................................................... 48
Instructions to Reset High Pressure Switch ....................................................................... 48
Advanced Troubleshooting (continued) ......................................................................... 49
Evaporator coil is freezing ..................................................................................................... 49
High pressure switch keeps tripping ...................................................................................... 49
Unit cycles on and off more than 8 times/hr .......................................................................... 49
High pitched or loud rubbing noise, clanking or vibration ...................................................... 49
Replacing the blowers ........................................................................................................... 49
Warranty ........................................................................................................................ 50
Contact and Warranty Information ................................................................................. 51
Contact Information............................................................................................................... 51
Warranty and Warranty Procedure ..................................................................................... 51