Question about Fedders A7DH65B2A Dehumidifier

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Dehumidifier icing up - no defrost cycle

My Fedder A7DH65B2A has started icing up completely with evidently no defrost cycle. This had happened before and a thorough cleaning (took the unit apart) brought it back. I'm thinking I need a new sensor.

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  • Fedders Master
  • 43,501 Answers

Hi,
The unit may be leaking freon...
Here is a tip that I wrote that will help you understand why and what you cando with a dehumidifier that ices up.

Dehumidifier is Freezing up and not working

heatman101

Posted on Sep 30, 2010

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1 Suggested Answer

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Posted on Jan 02, 2017

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Hi,

Here is a tip that I wrote that will help you understand why and what you cando with a dehumidifier that ices up.

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Here is a tip that will help you with basic trouble shooting..

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Hi,
This noise is the vibration from the compressor...sometimes things can come loose and magnify the noise...check for loose parts and tighten as needed...
The compressor may also be going bad...

Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier2_bing.gif.

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Fedder 65 pint dehumidifier model # A7DH65B2A


Hi,
If you haven't done so already, try removing and cleaning the inlet filter screen which is almost certainly just behing the inlet grille. If this is blocked with fluff then no moist air will get to the cold pipes, so little or no water will be extracted. There's also a chance that the humidity sensor is clogged with fluff, so fooling the system into thinking the room is pretty dry.

Is the compressor running? A running compressor can usually be detected as a deep throbbing from the machine.
If it is running, but not cooling the pipes, then you may have lost the refrigerant from the system via a leak. If the air coming out of the machine is warm (caused by the compressor running) but there is no water produced this is usually the cause.

If these suggestions do help you solve the problem, please give my reply a rating to help others judge my knowledge / guessing skills.
If they do not, please hold off on the rating and add a comment with more details so I can try to help you further. Cheers, D

Jul 11, 2008 | Fedders A7DH45B2A Dehumidifier

1 Answer

Fedders 65 Pint Dehumidifier Fan Problem


I have the same problem. The fan motor bearings are bad on mine. You can get a new fan motor at Appliance Factory parts.com. Phone number 1-800-955-7075. $44.95 + shipping.

Gene

Feb 05, 2008 | Fedders A7DH65B2A Dehumidifier

2 Answers

A7dh65b2a


Normal operation, the unit has sensed icing and is in the defrost mode (compressor off and fan on high). When the ice melts normal operation will resume.

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