9
Symptom
Cause
Solution
Pump Alarm Trouble Code E4
1. Reset the unit by disconnecting the power cord, then reconnecting it.
NOTE: The unit will not work until the error code is cleared.
If maintenance alone is not enough, the hoses and/or pumps can be replaced
Troubleshooting
Machine Won't Run
Power Supply
Verify that the outlet has power and
that the
plug is properly installed in the outlet
Room Temperature Exceeds
1O5°F (HI Displayed) or is
Below 33°F
Unit is outside of operating temperature
range. Modify room conditions so that
the temperature is between 33°F and
105°F ft the system will begin to operate.
(Machine set humidity degree must be
less than ambient humidity for
machine to operate)
Low Air Flow
Air Filter is Clogged
Clean the filter according to the
instructions listed in the manual.
Air Inlet or Outlet is Clogged.
Clear blockage on inlet or outlet.
Loud Noise
Machine is Not Level
Filter is Clogged
Move it to a flat surface.
Clean the filter according to the
instructions listed in the manual.
Trouble code E: 1
E1 = Humidity sensor lssues
Check the wire connections at both ends.
If there are no visible problems, the
sensor may be faulty.
Trouble code E: 4
Water Pump Failure
Confirm whether the pump is malfunctioning,
if so, unplug it for two minutes and restart it.
(1. confirm whether the float switch is
effective 2. whether the motherboard
chip is damaged)
Trouble code: HI or LO
Room Temperature Exceeds
1O5°F (HI Displayed) or Below
33°F (LO Displayed)
The machine unit is outside the operating
temperature range. Modify room
conditions so that a temperature between
33°F 1O5 "F will begin operation. If the
room conditions are within the
temperature range, replace the sensor.
Trouble code E: 5
Coil temperature failure or
compressor lack of fluorine
Check whether the coil temperature
connector is off or coil temperature
failure, compressor lack of fluorine
2. Manually check if the pump is operational by pressing the drain button. Check that the pump is
properly powered on and off. Also, check to see if any water is draining from the unit.
3. If the system has not been cleaned recently, check the discharge line for obstructions, then
check the balance of the pump system (see "Maintenance" on page 8 for details).
