User Manual - Page 9

For RPD-421EW. Also, The document are for others Whynter models: PD-321EW,  RPD-421EW,  RPD-621EW

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9
PARTS AND CONTROLS
Auto Defrost Indicator
In the event frost builds up on the evaporator coils, the compressor will cycle off and the fan will continue to run until
the frost is evaporated. This happens when the appliance is operating in low temperatures (less than 53°F or 12°C),
which affects the efficiency of the dehumidifier. When this happens, the Auto Defrost light will turn on and the ma-
chine will go into periodic defrost mode automatically. Defrost time may vary. If the dehumidifier freezes up, turn the
appliance off for few hours and then restart. The appliance will not operate satisfactorily if the room temperature is
below 41°F
Display
The display screen shows a number of different indications depending on the selection function.
Shows the set % relative humidity level from 35%RH to 85%RH.
Once the RH% is set, the set RH% will stay on the display for about 5 seconds then it will revert back to current
RH%.
Shows Auto Start and Auto Stop time from 0.0 hour to 24 hours.
After the option settings are completed, the display shows the approximate room humidity level in a range of
30%RH (Relative Humidity) to 90%RH .
Auto Restart
In the event of a power outage, appliance restarts at the previously set function mode and settings when power is
restored (not applicable to Timer Function).
Error Codes and Protection Code
AS - Humidity Sensor Error
Unplug the unit and plug it back in.
ES - Temperature Sensor
Error
Unplug the unit and plug it back in.
P2 - Drain Bucket Full
Empty the drain bucket.
Please make sure float moves freely and is not stuck .
EC - Unit Malfunction
Please make sure whether the environment temperature is
between 4F (C), and 9F (35°C).
E3 - Unit Malfunction Unplug the unit and plug it back in.
Eb - Drain Bucket Error
Drain bucket is removed or not positioned correctly. Make
sure that the drain bucket is properly installed and the in
right position.
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