The unit has power, all controls work. The machine "turns on" when the humidity level exceeds the level set. However, the fan or wheel or whatever it's called does not turn. I took apart the unit and observed, cleaned the parts, vacuumed the dust out but the "fan" will not spin.

Verify the humidity reading with another device. Perhaps the humidity sensor is dirty or bad.

Another possibility is the switching device that runs the compressor and fan is shorted. If it's a mechanical relay, the contacts may have welded together, or if it's a solid-state relay, it's got a punch-through or meltdown in a device junction. My guess is it's a mechanical relay since you mention it used to click on and off and now you don't hear that. The relay may be on the control board, or it may be mounted separately - I don't have a photo or diagram of the inside of your model available.

if its a newly mfg unit then yes the fans gonna run all the time , that's done to increase efficiency , if you hold down on arrows then you should be able to adjust the rooms humidity level, the default screen is the actual rooms humidity level , if you hold down mode button , this will cycle thru some timer modes that ind on the display

it should turn itself off when bucket is full , this even stops that fan from running most times

Bob, some humidifier fans run a lot, because they are designed to keep the air moving and when the humidity level rises, the compressor turns ON to extract the humidity. If you're operating the unit in a continual mode, it's not unusual for the fan to run almost constantly.Especially, is the humidity extraction level is set at or above 50%. Lowering it to 35% will cause it to extract more humidity and will turn on an off less.

Hope this helped you and thanks for choosing FixYa.

Lyle, your particular model is designed for the fan to function constantly. However, the fan running doesn't mean the compressor is always running. The reason the unit was designed this way, is for the air to be continually moving, and when the humidity sensor picks up a rise in the humidity level (above where you have it set) the compressor will turn ON and extract that humidity.

Your unit is working as it should. Thanks for choosing FixYa.

Set the temp level at whatever point your home's temperature is now. Lower the humidity level to 35%. If you don't have an LED screen on your unit, set the manual control to maximum.This way, you will extract the maximum amount of humidity and make your home more comfortable.

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

Fred, here is an in home test, that will determine whether your unit is working properly or not.

Please the unit in the bathroom, plug it in, turn it ON and set the humidity level at the LOWEST setting. Turn the shower On hot enough to generate steam. Do Not turn the bathroom's exhaust fan ON and make sure any window(s) is closed. As you exit the bathroom, close the door. Wait 15 to 20 minutes before reentering the bathroom. Then turn the shower OFF and allow the unit to run for 5 more minutes. Then, check the water collection bucket for any signs of water. If you find water in it, it's working as it should. It may simply have been a case that the humidity extraction level was originally set to high.

If you found no signs of water in the bucket, the humidity sensor in the unit may have failed or the compressor is low on refrigerant. Either one is repairable, but the cost of troubleshooting it, finding the part and the time repair it, may exceed the cost of a new unit. As, yours is a 4 years old unit.

Hope this helpd you to troubleshoot and solve the problem. Please let me know. Thanks.

Assuming that the unit is plugged in to an outlet that has power, press the ON button and a green light should come ON. That will indicate the unit is getting power and is ready to function. If however, you have the humidity level set to high and it's equal to or higher than the humidity level in your home, the unit's compressor and fan will not turn ON and run. Keep in mind, the humidity level, whether it's and LCD readout screen or just a minimum and high setting, that's not the amount of humidity that the unit will remove. It's what it will maintain. So, setting it as low as possible, should cause the unit to start functioning.

If it doesn't start, check the water collection bucket, to be sure that it's installed properly and is making contact with the safety trigger switch. If it's not making contact, the unit will not turn ON.

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

Part of the problem may be that you have the humidity level set to high. The fan runs constantly to move the air around. When the unit senses a humidity level higher than what you have it set for, the compressor turns ON. Once it's ON, if the humidity level is short lived, it turns OFF.

Try setting the humidity level to the lowest possible setting. Usually, that 45%. If the humidity level in you home is higher than that, the compressor should turn ON and run until either the bucket is full or the humidity level reaches 45%. If this doesn't solve the problem, turn the Master ON/OFF Switch to OFF and unplug the unit from the wall outlet for 12-15 minutes. Plug the unit bakc in, turn the Master ON/OFF Switch to ON and set the humidity level at it's lowest setting. Allow the unit to run until it cuts OFF and check the bucket for water. Hopefully that 12-15 minute time out allowed the unit to reset itself.

Hope this helped you to troubleshoot and solve the problem. Please let me know. Thanks.

Keep in mind, that a dehumidifier only draws humidity from the air, if the level of humidity is higher than what the controls are set on. For instance, if you have the dehumidifier set on 65 to 70%, that's a high level of humidity to maintain in a house. If you have it set for 35 or 45%, that's a low level of humidity to maintain in a house. Which, generally is what you want to maintain in the hot, humid summer months. Also, it's not uncommon on some dehumidifiers for the fan to almost run constantly. It's designed to keep the air moving, in a effort to detect when the humidity level rises.

Also, a dirty air intake filter makes the unit strain to keep up and can't take in moisture as it should. So, if you haven't cleaned the filter no is the time to check and clean it. And while your at it, clean the cooling coils too. Since it sounds like this unit has been working hard for 2 weeks.

The easiest and best way to test a dehumidifier at home, to see if it's working properly. Is to place it in the bathroom and turn the shower ON and don't operate the bathroom's exhaust fan. Set the humidity level low (45%), turn the unit ON and close the door when you leave. Wait 15 to 25 minutes and check the water collection bucket. If there's water in it, it's working as it should.

For more information on the proper operation of a dehumidifier, go to the Tips section of Fixya and look up "Taking the confusion out operating a dehumidifier".

Hope all this helps you troubleshoot and solve the problem. Please let me know. Thanks.

Keep in mind, that a dehumidifier only draws humidity from the air, if the level of humidity is higher than what the controls are set on. For instance, if you have the dehumidifier set on 65 to 70%, that's a high level of humidity to maintain in a house. If you have it set for 35 or 45%, that's a low level of humidity to maintain in a house. Which, generally is what you want to maintain in the hot, humid summer months. I find it uncanny, that all 3 units are not collecting any water. So, it may simply be the case, that the humidity level on each unit is improperly set.

Also, a dirty air intake filter makes the unit strain to keep up and can't take in moisture as it should. So, if you haven't cleaned the filters on a regular basis, not is the time to do so. And while your at it, clean the cooling coils too.

The easiest and best way to test a dehumidifier at home, to see if it's working properly. Is to place it in the bathroom and turn the shower ON and don't operate the bathroom's exhaust fan. Set the humidity level low (45%), turn the unit ON and close the door when you leave. Wait 30 to 40 minutes and check the water collection bucket. If there's water in it, it's working as it should.

Hope this helped you to solve the problem. Please let me know.