Question about Frigidaire Dehumidifiers

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I have a FO code on my Frigidaire dehumidifier. Cleaning filter does not help. About four years old. Need to open case and check for rust?

Posted by David L Holle on


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Mark Cheong

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  • 791 Answers

First, I'm not a Frigidaire tech.
* Check your warranty. Call for service.
* Contact (note Live Chat link);
*** following is for information only ***
* Be sure to check the tub and filter (make sure they are seated properly.)
* Checking basic problems;
* Review;
* There are no customer service parts in unit other than what was mentioned in the video.
* Contact Frigidaire or your local Appliance store for service.
Aloha, ukeboy57

Posted on Jul 11, 2018


5 Related Answers


  • 41 Answers

SOURCE: Kenmore Dehumidifier

if the compressor is running it sounds like a refrigerant problem or dead compressor in both cases its not cost efective to repair dan

Posted on Jul 17, 2008


D. Floyd Kolb

  • 43501 Answers

SOURCE: Our dehumidifier has started making more noise

When the compressors start to go bad they often start to get very loud also...the cost to replace the compressor will probably be more then a new unit...

Also check out this tip about dehumidifier problems...

Dehumidifier is running but no water is in bucket

Yes they should last longer than that, but the sad thing is that they don't make anything like they used too...just check out all the problems in this site for a few minutes...most of the problems should never happen...



Posted on May 05, 2010


D. Floyd Kolb

  • 43501 Answers

SOURCE: Frigidaire 50 pint dehumidifier freezing up and

Dehumidifiers2_bing.gif freezing up can be causes by a few different problems.
Here is a tip that I wrote to help people with the freezing dehumidifier2_bing.gif problem....

Dehumidifier is Freezing up and not working


Posted on Jul 13, 2010

Rich Landrum

  • 4736 Answers

SOURCE: frigidaire 70 pint dehumidifier model

Turn the unit OFF & unplug it. Remove the water collection bucket and set aside. At the top of the bucket holder, just behind the louvers you should see a plastic pull tab, which is part of the filter frame. If you have never removed the filter before, there may be a piece of plastic tape on the filter frame. It was put there for shipping. Remove and discard it. Pull straight down on the plastic tab and remove the filter. It can be cleaned by vacuuming it or if it's really dirty, wash it in with warm water and mild dish washing liquid. Rinse thoroughly, shake off access water and allow to completely dry, before reinstalling it. Never operate the unit without the filter in place, as doing so could cause damage to the unit. The filter should be removed and cleaned once every two weeks.

Hope this helped you and thanks for choosing FixYa.

Posted on Sep 20, 2011



  • 4342 Answers

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    SOURCE: I have a frigidaire LAD704DUL 70 pint dehumidifier. Last year it worked great. This year, it has not collected any water in the bucket. The motor runs, it is on CO setting but still no water. I have c

    If you have a dehumidifier that is not producing any water then you are wondering what you need to do to get this thing to work for you. In some cases you may be able to do something and in other situations there may be nothing that you can do.

    If you do not hear the compressor running and the unit says that the humidity in the room is higher then the setting, then you have a problem with your dehumidifier.

    A few things that can cause this are:

    The circuit board relay has gone bad...replacement of this board will often cost more then a new unit. This also is a very common problem with many dehumidification units.

    The compressor has failed...if you hear a buzz for a few seconds, every few minutes, then you have a bad compressor or at least bad start components on the compressor. Either way it again is a costly repair.

    If the compressor is running and the coils are not getting cold then you have a refrigeration system leak. Recharging or fixing these units is very difficult and is another costly venture compared to the price of a new dehumidifier.

    If the compressor is running but the fan is not, this also will cause low water production and continual freezing of the coil.

    If the compressor and the fan are running but the coil is totally blocked then you will get no water production. Air needs to be continually moved over the cold coil to get the water out of the air.

    If nothing is running, then you may also have a control board failure. Or the humidity sensor or humidistat has gone bad which tells the machine to run. If the sensor says that the humidity is low enough then it will never run.

    Also if nothing is running check the float switch or the bucket switch. Many of these switches are very touchy and if you do not have the bucket in place just exactly right it will not trip the switch to allow the unit to run. These switches often are more fragile then they should be and break easily. The good thing is that when available they are easy to replace and relatively inexpensive.

    There are some parts available for a few brands, but with the prices for most of the parts that you can replace running anywhere from 40.00 - 80.00 dollars, replacement parts with labor to install them, makes a repair more then the few hundred dollar cost of many of these dehumidifiers.

    As you can see there are quite a few things that can cause your dehumidifier not to work. Systematically go through the list and eliminate things to get to the bottom of the issue causing your problem and then decide if it is worth spending the money to try to fix the old unit. Only you can make that decision.

    Posted on Aug 14, 2012

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    To remove the back cover, first remove the sides: two screws at bottom of side, one halfway up the back, one inside bucket opening. Also remove four screws holding the top on. Top slides forward to release, then sides slide up about 1/2 inch and pull straight out. Hooked into the front and back. Once the sides are off, the back will come off with remaining four screws.

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    I have a Frigidaire dehumidifier modelFFADD7033R1 with FO fault. book says to unplug-wait-plug in again. did several times but can't get it to run normal again. What do you suggest ??

    First, I'm not a Frigidaire tech.
    * Check your warranty. Call for service.
    * Contact (note Live Chat link);
    *** The following is for information only ***
    * Check the vids below for the various faults and corrective methods to clear them. Keep an eye on how sensitive the unit is to the exact placement of the filter and tub.
    * Review;
    * Correcting "Bucket Full" Error;
    * Review (includes using a hose drain);
    * Final; check your warranty.
    Aloha, ukeboy57

    Jul 06, 2018 | Frigidaire Dehumidifiers

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    Removing the filter model fdl7051

    Hello Friend, this is Z. Thank you for allowing me to assist you!

    You would need to remove the bucket to locate the filter of your Frigidaire dehumidifier (FDL70S1). Then pull the filter downwards for cleaning. The filter can be clean by using clean water or vacuum cleaner extension hose. If you use clean water, please allow the filter to dry. Once you reinstalled the filter then replace the bucket. To extinguish the light simply press the FILTER button and your dehumidifier should resume normal operations. Remember it is best to clean your filter every two weeks based on normal operating conditions and typically the FILTER REST light will illuminate after 250 hours of operation. Hope this helps!

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    When turned off, makes a humming sound which it never did before. Can I ignore or do I need to fix some?

    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-

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    Shows change filter where is it located?

    Hello Ann, this is JK. I understand that you are looking for the location of the filter in a dehumidifier. Generally, you will need to remove the bucket to be able to reach under to remove the filter. Please refer to your owner's manual for more detailed care and cleaning instructions. Hope this helps!

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    How do I change the filter? Frigidaire 70 pint. I bought one with no manual from Lowe's.

    Here's a link to your missing Owner's Manual. Look under the section Care & Cleaning on how to remove the filter. This manual will prove invaluable to you. So download & print it for future reference.

    I hope this helped you and thanks for choosing FixYa.

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    Just wondering if this unit has a filter or filters that need to be changed?? (Frigidaire 70)

    Yes, your unit has an air filter, that should be removed and cleaned at least once every two weeks, while in operation, The filter is located behind the louvers on the front of the unit. To access and remove it, remove the water bucket and just inside the bucket holder at the top of the opening, you will see a tab type of handle. This handle is part of the filter frame. Pull that down and out and the filter will come with it. Back flush the filter with clear warm water. Dry it thoroughly, before reinstalling it in the unit. Never operate the dehumidifier without the filter installed.

    To assist you further, in case you have misplaced your Owner's Manual, I have included a link to the Manual for your model. You can download and print the manual for future reference.

    Hope this helped you. Please let me know. Thanks.

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    The faulty float valve is almost always the problem, based on what you described. It is a replaceable part, but you may have to but the entire bucket assembly. Generally, they run around $50.00. However, not all parts are still available for that model, even though it's only 4 years old.

    If you want pursue finding the float valve or a new bucket assembly, the best place I've found is online is Appliance Factory Parts they carry parts for just about any appliance you can think of.

    Or Frigidaire Parts Select

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    All most all dehumidifiers have a defrost cycle to take care of this problem. However, yours is either not working or the air intake filter is clogged, which makes the unit strain to keep up. Turn the Master ON/OFF Switch to OFF and unplug the unit, before attempting to remove the filter. Allow the unit to thaw while it's unplugged. Once it's completely thawed, plug the unit back in, turn the Master ON/OFF Switch to ON and set your controls as you normally do. Within in an hour or two, you will know if this solved the problem. Also, keep in mind, dehumidifiers are designed only to work in temperatures above 41 degrees. If it's below that where you have the unit, that will cause it to freeze up.

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