Question about Haier HDN455 Dehumidifier

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Haier HDN455 dehumidifier fan runs continuously but not compressor

My Haier HDN455 dehumidifier runs continuously but never produces any water in the tank. Upon further inspection it appears only the fan is running most of the time, with the compressor only kicking in for a few seconds at time before clicking off again for several minutes. A quick check of the current flowing to the compressor motor indicated about 14 amps, which is nearly three times the rated current. Is that merely a spike in startup current that would drop back to about 5 amps if it kept running, or should I assume the motor and/or compressor is faulty and toss the whole thing? I'd hate to trash it if it's just a controller issue or a capacitor that needs replacement, but am not sure how to diagnose it further since it won't stay running long enough to figure out what else could be wrong.

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  • Infrared Feb 05, 2008

    Thanks for the response...it's a reasonable response, but a parameter that had already occurred to me and been eliminated. If you think about the current characteristics I posted in my question, it turns out that it was definitely related to the problem. Turns out I had a bad start capacitor in the unit. I couldn't find anything similar locally, but found one in an old HID light ballast that I figured it couldn't hurt to try, and sure enough, it worked. It might run smoother if I get the right cap so I'll keep looking, but in the meantime this thing works great even down to 50°F ambient.

  • Leo Leask Jun 07, 2008

    i have new haier 45-pt dehumidifier that runs but doesnot remove any moisture

  • celeste50 Jul 03, 2008

    same problem as above runs all the time.. hardly any water in the bucket

  • Anonymous Aug 10, 2008

    fan runs constantly but does not collect any water. never hear the compressor come on.

  • Anonymous Apr 06, 2009

    Where can I get a new start capacitor ?

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First ! you are trying to use this dehum in cold weather conditions. this time of the year there is little humidity in the air. best conditions for the dehum to work will be when the temp. is 65 degrees or high, and the humidity is 60% or higher. if you don't trust what I said then take it to sears to be checked out.

Posted on Feb 05, 2008

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I dont know how to work my dehumidifier its haier hdn455 i dont know where the manuel is


Lament no longer. The link below is to your Owner's Manual. You can download and print it for future reference.

http://www.managemylife.com/mmh/owner_manuals/19991/HAIER-Dehumidifier-L0522296

Hope this helps to you get it up and running.

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Hi,
There are many reasons why a dehumidifier willnot work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrongwith their dehumidifier

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heatman101

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Hi,
There are many reasons why a dehumidifier willnot work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrongwith their dehumidifier

Dehumidifier is running but no water is in bucket

heatman101

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Hi,
There are many reasons for a dehumidifier tto not work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier.

Dehumidifier is running but no water is in bucket
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

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is the fan blowing air out?

If so, there may be a coolant/compressor problem

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Hi,
There are many reasons for a dehumidifier2_bing.gif to not work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier2_bing.gif.

Dehumidifier is running but no water is in bucket
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

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Hi,
There are many reasons for a dehumidifier2_bing.gif to not work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier2_bing.gif.

Dehumidifier is running but no water is in bucket
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

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Hi,
There are many reasons for a dehumidifier2_bing.gif to not work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier2_bing.gif.

Dehumidifier is running but no water is in bucket
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

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