Install Instructions

TABLE 4 – DIAGNOSTIC CODES
Diagnostic
Code Failure Mode Action Reset
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 50°F – 104°F
range 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
E9 Outdoor Temperature
Sensor Open or Shorted
1. Check the sensor connection at the power board�
2. Remove the wires from the terminals and
measure the resistance� A short circuit will have
a resistance very close to 0 Ohms and an open
circuit will have a very high resistance� The table
at right can be used to approximate the resistance
based on outdoor temperature�
3. If the sensor is not reading correctly, replace the
sensor, Part No� 8052�
Outdoor
Temperature Resistance
0°F 84,500 Ohms
20°F 46,000 Ohms
40°F 26,000 Ohms
60°F 15,500 Ohms
80°F 9,500 Ohms
100°F 6,000 Ohms
Self-Correcting
English 25