Frigidaire De Humidifier model FFAP7033. The FO light comes on and the dehumidifier runs but does not remove moisture from the room. The manual does not say what can be wrong with the machine.

SOURCE: Frigidaire gas range oven does not go up to correct temperature

It sounds like the thermostat is off. This would be the first place I would check.

SOURCE: Dehumidifier not removed moisture from air

Hi,
There are many reasons for a dehumidifier to not work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier.

Dehumidifier is running but no water is in bucket
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

SOURCE: 0GE Dehumidifier AHM65LKM1 not taking moisture out of the air

Hi,
There are many reasons for a dehumidifier to not work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier.

Dehumidifier is running but no water is in bucket
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

SOURCE: Honeywell Natural Warm Moisture Humidifier Is On But No Steam?

I have the same problem and I have 2 of them fairly new. I can't seem to find out what the problem is either.

Stumped?????????

SOURCE: I have a 2 year

Don, unless your dehumidifier is a Low temperature model, that very well may be the problem.
The air temp in a basement at floor level is colder than that chest level. Dehumidifiers don't work well at temperatures at 40 degrees F or less. Raising the unit up off the floor on to a sturdy table, counter top, etc, that is strong enough to handle it's weight, plus a full tank of water, will generally solve the problem. The higher up you can safely put it, the better. Also, lower the humidity extraction level to 35%. As 50% is just not low enough in a basement application.

Hope this helps you to solve the problem.