Install Instructions

TABLE 3 – Troubleshooting Guide
Symptom Possible Reason Troubleshooting Procedure
Dehumidifier does not
turn on/run.
No power to unit. • Check that the dehumidifier is plugged in.
• Check that the power switch is turned ON.
• Check that the control is turned ON.
• Check that the circuit breaker has not tripped.
Dehumidifier blower is
running but with little or
no airflow.
Pressure drop across
dehumidifier is higher
than 0.4”w.c. for Model
E080CS or 0.6”w.c. for
Model E100CS.
• Check dehumidifier air filter and wash or replace.
• Check for blocked duct work and clear.
• Verify that the outlet collar with backflow damper is installed on the outlet side of the dehumidifier.
• Check if backflow damper is blocked or stuck and remove obstruction.
Dehumidifier blower is
running but compressor
is not.
Float switch open. • If float switch installed, check connections at control board and empty condensate pan.
• If no float switch installed check that the jumper is installed at the float switch terminals on the
control board.
Coil frosting. • Lack of or reduced airflow. Check dehumidifier air filter and wash or replace.
• Check for blocked duct work.
• Inlet air conditions below 60°F. Increase the humidity setting.
Inlet air temperature is
outside of the 50°F –
104°F range or the dew
point is below 40°F and
there is a demand for
dehumidification.
• Verify all ductwork is properly sealed.
Dehumidifier is not
draining properly.
Drain line blocked or unit
not level.
• Verify that the unit is level.
• Check the drain line blockages and for a continuous downward slope.
• Verify presence and condition of drain insert. See MAINTENANCE in Owner’s Manual for cleaning
procedure, or replace with part number 5885 if missing or damaged.
Dehumidifier is
producing hot air.
Normal function. • Air is reheated across the condenser coil, resulting in a temperature rise between inlet and outlet,
this is normal.
TABLE 2 – Diagnostic Codes
Diagnostic
Code Failure Mode Action Reset
E6 Low Temperature
Thermistor Failure
1. Check the low temperature sensor connection at the power board.
2. Remove the side access panel and verify the sensor is not damaged and connected to the
suction line.
3. If the sensor is connected and secured to the refrigeration line, contact Technical Support.
Cycle Power
E7 Float Switch Open 1. Empty the condensate pan.
2. Check the float switch connection at the control board.
3. If not using a float switch, verify jumper is between float switch terminals on dehumidifier
control board.
4. If the problem persists, replace the float switch.
Self-Correcting
E8 Inlet Air Temperature
Out of Range
50°F – 104°F or dew
point below 40°F
1. Verify all ductwork is properly sealed.
2. If no signs of leak points, contact Technical Support.
Self-Correcting
HI
(E0)
High Dew Point
(Hight Dew Point on
Model 76)
1. Verify unit is functioning properly by checking self-correcting diagnostic codes.
2. If there has been an environmental event causing a spike in moisture/humidity, allow the
dehumidifier to continue to run.
3. If the fault persists, contact Technical Support.
Self-Correcting
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