Recently bought a Frigidaire Dehumidifier four days ago. Ran it for 3 days on the co setting as the manual instructed. When I set the humidity level, after about 5 minutes it shuts down...does not come back on. My setting is on 40...it's the 25 pint machine.

It is broken.

Good Afternoon Miguel,

I understand that your Frigidaire dehumidifier, model# LAD704TDL, is not reducing the humidity, due to the coils constantly freezing up. I also see that it is located in good temperatures and in a good position. I suggest contacting the manufacturer directly. They should be able to point you in the right direction to having your appliance fixed. Hope this is helpful.

-Best Regards-
WP

Good Afternoon Friend,

I understand that you want to know how to measure the humidity in a room with your Frigidaire dehumidifier, model# FDL50R1. Typically, your appliance will not measure the humidity and tell you exactly what the level is. I suggest placing your dehumidifier in the room you want it in, and turning it on to the continuous mode. The display will show "CO". Leave it at this setting for the first 3-4 days. Once the 3-4 days has passed, I suggest setting it to the 50%, 60%, or 70% setting and change it to your liking. If it is more humid in the room than you would like, put the setting lower. I ask that you please follow up with a comment on the post, at your convenience, to advise if further troubleshooting is needed or if your washer status has changed successfully. Hope this is helpful.

-Best Regards-
WP

Hi Ra Ma,
After you have set the desired humidity, the readout will display the actual room humidity. It has a built in hygrometer which will be on the display while it is running.
You change it and it shows the actual levels.

See page 5 on manual.

http://manuals.frigidaire.com/prodinfo_pdf/Edison/2020266a0180en.pdf

Is it reading the room humidity, rather than showing the set point? Check the manual.

If the humidity level is at or lower than 30%, the unit won't turn ON, until the reaches 35 - 40%. It's rare for the sensors to go bad. Just keep in mind, the dehumidifier is reading the humidity near the floor, not up at say, chest level. Humidity levels change every season, so this really would not be that unusual. Make sure that your clean the air intake filter regularly. Cleaning and wiping down the coolant coils would be a good idea, too..

Hope this helped you. Please let me know.

You've posted in DEhumidifier section.

Sounds like you have a Humidifier. Please post there.

Although why you want to add humidity to the tropics is beyond me.

If you are in a very humid room or area it will not shut of until it reaches desired humidity% level that is set. If it is reaching the set level and not turning off I would return it.

Check this page:

http://forum.doityourself.com/archive/index.php/t-308629.html