I have a problem with my Kenmore dehumidifier. I turn it on and I can hear the fan running, then I can hear the condenser start to run. Then about 3 seconds later the condenser shuts off, (with the fan still running). Then the condenser comes on for a few seconds and shuts off again. This continues indefinitely. Model #580.52450200

SOURCE: runs for a couple of minutes and then stops

Try cleaning out the air filter using cold water. I did not even know the unit had one until I had the same problem. Pull out the bucket. The filter is located where the front top edge of the bucket would be located if it were in the instrument. Remove it by pulling straight down. It may be taped to the instrument for shipping purposes. According to the manual, this should be done every month. I have had the machine since Katrina and this is the first time I have had a problem. Hope this helps.

SOURCE: Dehumidifier shuts off after 2 mins

you might have a compressor problem, in which it won't be economical to repair. if you are using the unit in cold weather then it just might be that there is not enough humidity in the air and it is cycling fast.

SOURCE: Kenmore 54701 Dehumidifier

I'm working on mine right now as we speak with the same problem , it runs for 3-4 minutes and then drops out and what I think I have found is the compressor comes on but the fan that blows over the condensor/evaporator assemblies never turns on ! I tore the covers of mine and put a volt meter across the orange and black wires (with the unit on high ) , on the little white plug in the metal box on a pc board , that all the wires go into and with the comressor off just before it starts on power up I have 122vac (volts ac) and then the compressor kicks in and it drops to about 107 vac but no fan action so I'm getting on line to order a motor assembly Kenmore # 4681A20040K ! I just happened across this site so I hope It works for me and helps you !

SOURCE: motor runs fan does not

you may have a stripped out fan unit, the fan motor runs, but the fan does not spin? my fan was plastic and stripped out there should be a flat spot the lines up with shafton motor ifit is round your should replace fan blade unit. i could not find one so i pushed tooth picks in between shaft an fan and glued them has worked for a couple months now

SOURCE: Kenmore dehumidifier 580 5370 1300

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