I have a model #25343. It is making a whirring sound so I turned it off. What is causing this sound and will it still work?

Good Afternoon Friend,

I understand your Frigidaire dehumidifier, model# FAD704TDP, is making a humming sound, when it is turned off. I also see that you have tried cleaning the filter and grill already, and want to know if there you should be concerned about this. You should not be alarmed by this. Providing, your dehumidifier is doing what it is supposed to do, and is taking moisture from the air, your appliance sounds like it is working fine. Hope this is helpful.

-Best Regards-
WP

What you have described is usually caused by the bucket not being properly installed or if you have a model with a float valve in the top of the bucket , it is stuck in the UP position.

Turn the unit OFF & unplug it. Remove the bucket from it's holder and check for a float valve. If you have a model with that feature, jiggle the float valve's arm, to get it to return to the DOWN position.

If you don't have a float valve, the bucket must be installed "squarely'" into it's holder from top to bottom, so that the bucket makes firm contact with the actuator switch. The switch resembles a trigger switch, which is visible when the bucket is removed.

Troubleshoot the above, should solve the problem.

The black cylinder is the compressor. It sounds like your unit is cycling the compressor for some reason. If the compressor starts, runs fine, and removes water when you set the humidity control to the driest setting the compressor is probably OK and the problem may be with the humidity control causing the dehumidifier to "short cycle" for some reason. You may need to change the humidity control or relocate the dehumidifier in your crawl space.
If the compressor attempts to start, and then sits quiet for 10 minutes, and then attempts to start again, you have a problem with the dehumidifier. There are a few things that can cause this problem:
Low refrigerant charge
Bad compressor capacitor
Bad compressor overload
Plugged capillary tube or broken expansion valve
are the common causes of this behavior. If you suspect one of these problems, call the factory service department at 1-800-533-7533 for help.

Good luck with your dehumidiifer.

check the capacitor to the conpressor motor BUT IF YOU ARE A NOVICE STAY AWAY FROM THIS PART IT CAN BLIND YOU OR EVEN KILL YOU and its not worth that Truely its sounds like the capacitor is shot or ven worse your compressor mother is shot have a technition check it out it is really worth it. PS Im not jocking about the capacitor.

Hello,

First, make sure the reservoir is empty. If you plug the unit in and see a green power light, but the unit won't run, make sure the reservoir is properly inserted. Many dehumidifiers have switches or sensors to make sure that the reservoir is placed so that it won't leak. Look for these sensors and make sure the reservoir is engaging them. If your dehumidifier has a float or switch to indicate a full reservoir, make sure this switch isn't being tripped accidentally.

Good luck.

sounds like the compressor is seized.

Try cleaning the coil and filter. They may have collected alot of dust and this could have caused the issue. If it is still doing it after you clean it the issue may be thecompressor. If the compressor is bad it may be cheaper to pick up a new unit. I recommend picking up one that has an energy star rating. They are usually made of higher quality materials and will save you some money on your electric bills. If you found this solution helpful please rate it.

Thanks - Tech101

not sure which dehum yo have,but here I go! most fans are not part of the cooling system. first remove the housing where the fan is. turn the unit on and check to see if the fan is turning. if not then just wait till you hear the compressor kick in. if the compressor goes on then you do have a problem w/the fan motor and it will have to be replaced. worst comes to worst just bring it into Sears. they have techs which will let you know what the exact problem is and you can take it from there. make sure you give them the model # first,just to check if the have parts for your dehum.

probably is compressor. there is an overload which detects high heat and excess current. that is what is clicking. the only way to be sure is to access compressor and see if power is present or get you ear as close as poss and be sure it is compressor clicking

mine did the same thing and i had to replace the fan