Compressor sounds as if its on, the fan is on, but water is not extrated from the air

Capacitor
If your dehumidifier is no longer pulling water from the air and you have verified that the ambient room temperature is above 65 degrees Fahrenheit, then the unit's compressor may not be running. The compressor is the pump that circulates the refrigerant through the evaporator to extract moisture from the air. There is a capacitor in the compressor circuit to help the compressor motor to start and if the capacitor has failed then the compressor won't run. If the compressor doesn't run or if the overload device continues to trip, then you may have a defective capacitor. An accurate diagnosis can be determined by a qualified person using special test equipment.
Overload
If your dehumidifier is no longer pulling water from the air and you have verified that the ambient room temperature is above 65 degrees Fahrenheit, then the unit's compressor may not be running. The compressor is the pump that circulates the refrigerant through the evaporator to extract moisture from the air. There is a device in the compressor circuit called an overload and it is used to protect the compressor motor from damage. If the overload has failed then the compressor won't start. If you have verified that the compressor doesn't run, then you can test the overload for continuity with a multi-meter. A common cause for the overload to fail is from operating the dehumidifier on long or undersized extension cords.
Fan Motor

If your dehumidifier is not making water and you have verified that the ambient temperature is above 65 degrees Fahrenheit, then you may have a faulty fan motor. For proper operation, a dehumidifier needs to have an adequate amount of air blowing across the evaporator coils to prevent frost or ice buildup. If you feel little or no air coming through the grille area and the filter is clean, then remove the cover and check the fan area. Inspect the coils to make sure that they are not restricted with lint or dirt and clean them if necessary. Make sure that the fan motor rotates freely and that the fan blade or blower wheel is firmly attached to the motor shaft. Using caution, operate the unit in a fan only mode and observe the fan motor. If it hums but does not rotate or only rotates slowly then it is defective and will need to be replaced. If the motor does not rotate and does not appear to make any sound, it may still be defective, but will require further testing by someone who is comfortable with using a multi-meter and working with live electrical circuits.
Electronic Control Board or PCB Assembly

If your dehumidifier is no longer pulling water from the air and you have verified that the ambient room temperature is above 65 degrees Fahrenheit, then the unit's compressor or fan motor may not be operating. The compressor is the pump that circulates the refrigerant through the evaporator, and the fan motor blows air across the evaporator coils to extract the moisture. On some modern dehumidifiers an electronic control board, often called the PCB, is used to control the compressor and fan motor. The control board has sensors connected to it that monitor the relative humidity and when the level is higher than the control setting, the control board will activate relays to turn on the compressor and fan motor. If you have an electronic control model and the compressor or the fan is not operating, then the electronic control may be at fault. A voltage test, using a multi-meter at the output relays, would be required to help in the diagnosis as well as confirmation that the sensors are operating normally.

I think the first step we should access is text extration from pdf files. Any suggetion?

Hi,
There are many reasons why a dehumidifier willnot work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrongwith their dehumidifier

Dehumidifier is running but no water is in bucket

heatman101

It sounds like what you hear working is the fan. The unit also has a compressor; if the compressor is bad or the freon is gone, the fan will run but the coils wont cool to remove moisture from the air.

The thermosenser on the fan motor may be blown if the fan isn't blowing.

If it is also not extrating motsture then ther may be a coolant/compressor issue - time for a new unit

Hi;
Your dehumidifier is similar to a refridgerator or air conditioner. It has a compressor and coils, and a fan. Basically, the unit has to **** in air with it's fan, and as the humid air goes across the cold coils, the humidity condenses in to water. If the coils are not getting cold, they won't condense any water, or if the fan isn't running, or the coils are dirty. If you check your unit over, see if you can tell if anything isn't working. Make sure the control knob is set at the highest setting. If the compressor lost it;s refridgerant charge, and won't get cold, it isn't probably worth fixing

compressor run but gas charge not enought
so it not very cool,and no water come out

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

You most likely have a freon leak, or the compressor is not running. When the machine first turns on you should be able to see if the compressor is running or if it is just the fan. If the compressor is not running it does have a start devise and a relay on it that can be replaced. If the compressor is bad, most units have a 5 year warranty on the compressor, so contact the manufacturer for warranty service. If the compressor is running you have a freon leak, and it would need to be found, repaired and the freon replaced. This is a large repair, estimated charge for a leak repair would be around $149.99 The reason is the long time it takes to find the leak, and all the parts needed. Drier, valve, freon, etc.. Good luck, and I hope it is only the relay. You can get those relitively inexpencively. 3 in 1 kits are also good for a hard to start compressor. They give the compressor a little more kick to start it. They are about $28.00 and easy to install once you are to the compressor. I hope this will FixYa.
Mike

Dehumidifiers have only a few components, and operate on the same principle as a refrigerator, freezer, or air-conditioner.
Components Residential dehumidifiers have a cooling system made up of these primary components:

• The compressor is the quiet motor (engine) of the cooling system. It's the black, football-size component at the bottom of your dehumidifier. The compressor runs as long as the dehumidifier humidistat (the humidity-sensor) calls for a reduction in the humidity.
  
  
• The condenser is a series of finned tubes, similar to a radiator. It's usually near the circulating fan.
  
  
• The evaporator is located near the back of the dehumidifier, right above the water-collection container. It also resembles a radiator or a coiled-up set of tubes. When the dehumidifier's humidistat senses increased humidity, it cycles on, which starts the compressor and circulating fan.
  
  
• The circulating fan circulates the air over the evaporator and condenser coils.
  
  

Principle When the unit runs, the circulating fan and compressor also run. The fan continually draws room air over the evaporator coils, which are cold, and then over the condenser coils, which are warm. Because the evaporator coils are cold, the moisture in the room collects on them--just as the outside of a glass of icy liquid "sweats" on a warm, humid day. When the moisture on the coils increases, it drips off of the coils into the collection container.

The air then flows over the warm condenser coils and out into the room. This process removes water from the air and, because of the heat from the fan motor and compressor motor, the exiting air is somewhat warmer, as well as dryer.