Install Instructions

TROUBLESHOOTING (CONTINUED)
TABLE 2 – 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.
• Check dehumidifier air filter and wash or replace.
• Check for blocked duct work and clear.
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.
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.
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