Whirlpool AD40U Humidifier
Problem for Whirlpool AD40U Humidifier

Does not dehumidify




By amakrepairs on May 20, 2009

" "
My dehumidifier has "very warm air" blowing out of the back, the front gets very cold, almost frosty, like it is supposed to, room is 70 degress, just cleaned it out today, no water....
Comments:

May 20, 2009

- we normally get water in our basement when it rains real heavy, which is why we use it. The dial/switch auto checks humidity levels and turns unit off when dialed down... you explained it exactly like I explained to my wife as I was cleaning the unit. normally we have to empty unit almos twice a day when we use it. can't figure this one out.

Best Solution

posted on May 20, 2009
Very Helpful)

justaskjoe

Rank: Guru  Whirlpool Expert
Rating: 85%, 2054 votes
Hello. I am here to help. Let me begin by saying that a dehumidifier only needs to be operated if the humidity in your home is too high. If the humidity is low, the humidifier will have to work really hard to try and remove water from it.

Here is an overview of how the dehumidifier is supposed to work:

When the unit runs, the circulating fan and compressor also run. The fan continually draws room air over the evaporator coils, which are cold, and then over the condenser coils, which are warm. Because the evaporator coils are cold, the moisture in the room collects on them--just as the outside of a glass of icy liquid "sweats" on a warm, humid day. When the moisture on the coils increases, it drips off of the coils into the collection container.

The air then flows over the warm condenser coils and out into the room. This process removes water from the air and, because of the heat from the fan motor and compressor motor, the exiting air is somewhat warmer, as well as dryer.
Comments:

May 20, 2009

- If your dehumidifier doesn't seem to run often but the humidity in the room is high, try adjusting the humidistat control on the dehumidifier to a dryer setting. If the dehumidifier seems to run constantly, but there's little or no water in the container, there may be a problem in the refrigeration system. Try cleaning the unit. If that doesn't work, you can't repair the refrigeration system yourself, you need a qualified appliance repair technician to do that.
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