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Contents
  • 1. The Humidity is Too Low
  • 2. The Air Filter is Dirty or Blocked
  • 3. The Coils are Frosting or Freezing
  • 4. Improper Room Size or Overcapacity
  • 5. There is an Internal Problem or Clogged Drainage
  • 6. The Refrigerant Is Low 
  • 7. Fan or Pump Malfunction
  • Conclusion
Contents
  • 1. The Humidity is Too Low
  • 2. The Air Filter is Dirty or Blocked
  • 3. The Coils are Frosting or Freezing
  • 4. Improper Room Size or Overcapacity
  • 5. There is an Internal Problem or Clogged Drainage
  • 6. The Refrigerant Is Low 
  • 7. Fan or Pump Malfunction
  • Conclusion

Dehumidifier Not Collecting Water: 7 Reasons Why

I have been in that case before, frustrated and questioning, Why is my dehumidifier not collecting water, yet it is still on. I initially thought it was broken. However, upon further investigation, I discovered that there may be a number of reasons why the problem exists. 

The question is, why has my dehumidifier stopped collecting water? runs through the mind. In this guide, we will take you through the best causes and remedies. I will also provide some viable commercial dehumidifier products that can save you a headache in the future.

dehumidifier on but not collecting water

1. The Humidity is Too Low

Low room humidity is among the most prevalent causes of a dehumidifier not operating successfully and picking up water. Most dehumidifiers are calibrated so that they get triggered when there is a given level of humidity, typically when humidity exceeds 50 percent or so.  In case your room is quite dry already, the machine will continue to operate but will not harvest water.

What To Do

The remedy to this is to measure the humidity of your room using a hygrometer. If it goes below 50 percent, you are not really facing a malfunction; it is merely too dry. Here, you might be in need of a dehumidifier that functions excellently across a wider humidity level. 

Creworks 130 PPD Commercial Dehumidifier would be a wise investment in this case.

  • It is most suitable in crawls, basements, and warehouses, and the machine has a capacity to maintain the humidity level of 10 to 98% RH.
  • It also has the ability to remove up to 130 pints a day at full load, which is necessary to maintain solid performance in any tricky environment.

2. The Air Filter is Dirty or Blocked

When your air filter is clogged, air can’t circulate properly. This reduces the machine’s ability to pull in moisture, leaving you with a dehumidifier not collecting water but running noisily in the corner. A dirty filter also makes your unit work harder, which shortens its lifespan.

The fix is simple: remove and clean the filter according to the manufacturer’s instructions. For heavy-duty use in damp spaces, I recommend choosing a model with easy maintenance.

The Creworks 180 PPD Commercial Dehumidifier features an upgraded condenser and evaporator system, ensuring smooth airflow. Its intuitive control panel makes it easy to monitor and maintain efficiency.

3. The Coils are Frosting or Freezing

If you notice ice forming on your dehumidifier’s coils, that’s a big red flag. Frozen coils prevent proper heat exchange, meaning your unit can’t condense moisture from the air. This often happens when the room temperature is too low for the machine’s design.

What To Do

The solution? Defrost the coils by switching off the unit and letting it thaw. For long-term prevention, invest in a model with auto-defrost features. 

The Creworks 180 PPD Commercial Dehumidifier with Auto Defrost is built exactly for this scenario. It keeps coils ice-free, so your machine keeps running smoothly, even in colder basements or crawl spaces.

why is dehumidifier not removing water?

4. Improper Room Size or Overcapacity

Sometimes, it’s not the dehumidifier’s fault; it’s just not the right size for your space. If your room is too big for your dehumidifier’s capacity, it won’t be able to keep up. On the other hand, if the room is too small, the machine might shut off prematurely.

Measure your space and check the coverage area of your unit. For instance, the Creworks 130 PPD Commercial Dehumidifier works best in areas from 500 to 1440 square feet. If you’re dealing with a larger basement, warehouse, or factory, the Creworks 180 PPD Commercial Dehumidifier (600–1600 sq. ft.) would be a better match. Choosing the right size ensures your dehumidifier for basements collects water efficiently.

5. There is an Internal Problem or Clogged Drainage

Another reason for a dehumidifier not collecting water could be a clogged drainage system. If the water bucket or hose is blocked, the machine can’t drain properly, and it may shut down or stop collecting water altogether.

Check for kinks in the hose, clear out any blockages, and make sure the bucket is positioned correctly. For a hassle-free option, I recommend the Creworks 180 PPD Commercial Dehumidifier with Built-in Pump. With its automatic pump and 16.4 ft. hose, it drains water continuously and in any direction, perfect for basements or crawl spaces where manual draining is a pain.

6. The Refrigerant Is Low 

Dehumidifiers use refrigerant to cool the coils and condense moisture from the air. If your unit has a refrigerant leak or is running low, you’ll notice that it keeps running but doesn’t collect much water.

This usually requires professional servicing, but if your unit is older, replacement may be more cost-effective. Modern models use upgraded refrigerant systems and coils to provide long-lasting efficiency. Investing in a reliable model can save you from expensive repairs in the future.

dehumidifier failing to remove water

7. Fan or Pump Malfunction

The last reason that can result in your dehumidifier not collecting water and operating indefinitely is when the fan is not blowing air across the coils, or the pump itself is not functioning. Such mechanical problems limit the amount of air and moisture processing by the machine.

You may inspect the fan motor, change the pump, or ask the manufacturer about the replacement parts in this situation. However, when repair expenses accumulate, it can be wiser to upgrade to a heavy-duty commercial model.

The Creworks 180 PPD Commercial Dehumidifier with Pump and Auto Defrost ensures both airflow and drainage work seamlessly together, preventing these common breakdowns.

Conclusion

Your dehumidifier fails to collect water, and this can lead to frustration. However, in most cases, the problem is related to simple factors: the lack of humidity, a dirty filter, freezing of coils, or poor drainage. By discovering the origin of the problem and taking the appropriate actions, you can repair your unit.

In case your existing model continues to malfunction, then it is perhaps time to invest in a high-quality one. Creworks provides highly effective, efficient, and simple care and maintenance of dehumidifiers used in crawl spaces, basements, warehouses, etc.

 Prevent damage to property or comfort in your premises caused by excess humidity, and select a model that suits your space and controls the excess humidity.

Explore Creworks line of commercial dehumidifiers today and finally say goodbye to musty odors, mold, and dampness!

Michael Anderson
My name is Michael Anderson, and I am a senior engineer specializing in heavy machinery and equipment. I hold a degree in mechanical engineering and have extensive experience in mining and construction industries worldwide. My aim is to simplify complex technical concepts, making them accessible and understandable to a wide audience.
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