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 ??

What is the make, and model number.

First, I'm not a Frigidaire tech.
* Check your warranty. Call for service.
* Contact (note Live Chat link); https://www.frigidaire.com/Owner-Center/Contact-Us/
*** following is for information only ***
* Check by setting to "Driest" or max setting. It should stay on longer.. If not then there may be a problem with the air sensor. Call for service.
* If the compressor keeps turning on and off every 2 mins then it may be "short cycling". Call for service.
* Be sure to check the tub and filter (make sure they are seated properly.)
* Checking basic problems; https://www.youtube.com/watch?v=SXJrVGP_Ixs
* Review; https://www.youtube.com/watch?v=BbwIEU3zlG8
Aloha, ukeboy57

Have same issue with 3 year old Frigidaire dehumidifier purchased in 2012. Must unplug to stop compressor running with power switch turned off. Unit gets hot and smells. Unplugging creates arcs at outlet since unit is pulling a lot of power. Plugging back in after some hours will make it appear to run normally and again remove moisture but it will not shut off when the fan goes off (humidistat bad?) and the set-point is reached. Cannot leave plugged in due to safetty/fire/overheating concern. Have not found answer on this forum or any other so far.

Unplug the unit for about 10-15 minutes. Go ahead and clean any filter and parts of the unit you can while you wait. Then reset the red GFI plug, if your unit has one, and plug the unit back in. Try again.

Hi,

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

Read the instruction manual thoroughly and ensure you did everything exactly. If it still doesn't work it is faulty and should be returned.

First, the unit may need to be cleaned and after that, unit may need to be reset. Turn the Master ON/OFF Switch to OFF and unplug the unit for 12-15 minutes. Then plug it back in and turn the Master ON/OFF Switch to ON. Set the controls as you normally do. Hopefully, that 12 - 15 minute timeout, allowed the electronics to reset themselves. If this continues to occur frequently, contact an authorized Frigidaire Service Center

Hope this helps you troubleshoot and solve the problem.

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.

With all that said, what you're seeing as the Error Code is in fact, AS (the 'S' looks a lot like a 5 on the LED screen) It indicates a Sensor Failure. In your case, it's more than likely the Defrost Cycle Sensor. The Owners Manual says "Contact your local Authorized Frigidaire Service Center, if this happens. I'm hoping that cleaning the filter (if needed) and allowing the unit to reset itself (while it's OFF & Unplugged) will solve the problem. But, it may only be a band aide fix.

Hope this helped you.

You can test it out by disconnecting the power cord, wait five minutes and plug it back in. If it retains the original settings you are good to go. If you are wondering before purchasing a new unit ask before you buy.