How to Recharge dehumidifier?

In the past, I have experienced firsthand how vital it is to properly recharge a dehumidifier. After all, recharging a dehumidifier can be tricky if you don’t know where to start; however, it doesn’t have to be a daunting process.

The technique of how to recharge dehumidifier is very easy! Simply connect it to a power source using the provided cord and allow it to replenish its energy, ensuring proper functionality and optimal moisture removal performance.

How to Recharge dehumidifier

In this blog post, I will walk you through the step-by-step process about how to recharge dehumidifier and equip you with all the knowledge necessary to do it quickly, easily, and safely.

Can You Recharge A Dehumidifier On Your Own?

Recharging your dehumidifier yourself may seem like a great way to save money, but it can be dangerous and even illegal in some states. Many types of coolants used for recharging are hazardous, posing a health risk to both humans and the environment. 

Even if you manage to get the recharge kit needed for older models, we strongly recommend that you reach out to a legal HVAC company or professional for assistance instead. Protect yourself and your family by taking the proper precautions when it comes to recharging your dehumidifier.

When Should You Recharge A Dehumidifier?

If you own a dehumidifier, it is important to keep an eye out for signs that indicate it needs recharging. With refrigerant dehumidifiers, there are several telltale signs that the coolant is low and the device requires a recharge.

  • Lack of condensation
  • Less Water Collected
  • Control panel
  • Humid Air
  • Humidity Level Doesn’t Change

Lack of condensation:

Condensation problem of dehumidifier

The lack of condensation can be a major issue for your dehumidifier. Without the internal compressor or internal coils functioning properly, water vapor cannot be converted to liquid and collected in the tray. This process is essential to preserve the refrigerant or coolant within your device, so if you notice that your tray is dry, it’s important to recharge your dehumidifier as soon as possible.

Moist Air:

If you notice that the air coming out of the dehumidifier is still moist, even if it’s draining the collected water through a hose, then this could indicate that the machine does not have enough refrigerant.

Less Water Collected:

Dehumidifier not collecting water

When a dehumidifier typically collects a certain amount of water in a day, and suddenly you find it collecting much less than usual – even when the outdoor humidity level hasn’t changed significantly – then this is likely due to the device being low on coolant.

Control panel:

Dehumidifeir red light for filter change

The Control Panel in modern dehumidifiers is equipped with a light indicator to easily monitor the machine’s functions. When the warning light turns RED, this indicates that the coolant needs to be refilled as soon as possible. Replenishing the coolant will help ensure the optimal performance of your dehumidifier. Failure to do so could lead to damage and malfunction of the unit.

No Change in Humidity Level:

One of the simplest ways to tell if your dehumidifier needs recharging is by monitoring the humidity level in your home. If the device is running, but you’re not noticing a change in humidity levels, then it may be time to recharge your dehumidifier.

Recharging a dehumidifier can be costly. In some cases, it might be best to invest in a new machine rather than trying to recharge the old one. 

Which Type Of Dehumidifier Is Rechargeable & why?

There are two main types of rechargeable dehumidifiers:

Refrigerant dehumidifiers:

Refrigerant dehumidifiers work similarly to air conditioners, using coolant that circulates between the evaporator coil and condenser coil. The coolant releases heat as it passes through the condenser coil and absorbs heat as it passes through the evaporator coil, which is why moisture in the air gets condensed out when passing through the evaporator coil.


Over time, though, this coolant may leak or break down, meaning it needs to be recharged in order for the dehumidifier to keep functioning properly.

Desiccant dehumidifiers:


Rechargeable desiccant dehumidifiers are non-electric and don’t use coolant at all. Instead, they make use of a moisture-absorbent chemical material that naturally adsorbs dampness from the air. When this material absorbs enough moisture, it will change colour as an indication that it needs to be recharged this can be done by placing it in a microwave or plugging it into a power outlet.

How to Recharge dehumidifier? Desiccants Dehumidifiers or dehumidifier bags?

Recharging your desiccant dehumidifier is a necessary step to ensure that it works efficiently and effectively. Desiccants are materials that absorb water vapor, and they’re the most common type of dehumidifier. To recharge these devices, you need to heat the desiccant material in an oven or with a built-in heating plate at 200 degrees Fahrenheit for two hours.

Here’s a step-by-step guide on how to recharge your desiccant dehumidifier:

  • Place the dehumidifier on a flat surface in a well-ventilated area.
  • Remove the desiccant pack from the unit and place it in an oven or on a built-in heating plate.
  • Heat the desiccant at 200 degrees Fahrenheit for two hours.
  • Allow the desiccant to cool down completely before placing it back in the dehumidifier.
  • Plug the unit into an outlet and turn it on.
  • Sometimes, you’ll be able to tell when your desiccant needs recharging by looking at its beads they usually change color from orange to green when they are fully charged again.

By following these simple steps, you can recharge your desiccant dehumidifier so that it will work like new again!

How to Recharge dehumidifier? Refrigerant dehumidifiers?

Recharging a refrigerant dehumidifier involves adding or replenishing the refrigerant gas that the system uses to eliminate moisture from the air. However, it’s important to understand that handling refrigerant requires specialized knowledge and tools. If you’re not familiar with refrigerant systems, it’s advisable to seek help from a professional technician or the manufacturer’s service center.

To recharge a refrigerant dehumidifier, follow these steps:

Identify the Refrigerant Type: Confirm the type of refrigerant used in your dehumidifier, such as R-410A or R-134a. You can find this information in the user manual or on a label near the compressor or condenser.

Safety Precautions: Prior to any work, turn off and unplug the dehumidifier to ensure safety. If you’re unsure about the process, seek professional assistance.

Accessing the Refrigerant System: Locate the access port or valve on the refrigerant system, usually found near the compressor or condenser. The access port enables you to connect the refrigerant charging equipment.

Refrigerant Cylinder: Use the appropriate-sized refrigerant cylinder to store and supply the refrigerant gas for recharging.

Recharging Equipment: Prepare a refrigerant charging kit that includes hoses, gauges, and a valve to control the refrigerant flow.

Connecting the Cylinder: Follow the manufacturer’s instructions to securely connect the refrigerant cylinder to the charging kit.

Adding Refrigerant: Slowly and carefully open the valve on the refrigerant cylinder to allow the gas to flow into the dehumidifier’s system. Monitor the pressure gauges to avoid overcharging the system.

Monitoring Pressure: As you add refrigerant, keep an eye on the pressure gauges to ensure they remain within the recommended levels for your dehumidifier model.

Sealing the System: Once the correct amount of refrigerant is added, close the valve on the refrigerant cylinder and carefully disconnect the charging kit from the dehumidifier’s access port.

Testing the Dehumidifier: Plug in the dehumidifier and turn it on to ensure it functions correctly after the recharge. Observe the unit for any signs of issues or abnormal behavior.

Remember, refrigerant handling requires expertise and proper equipment. If you lack experience with refrigerant systems, it’s best to leave the task to a qualified technician who can recharge the dehumidifier safely and effectively.

How to Identify the Type of Refrigerant cylinder?

To determine the refrigerant type used in your dehumidifier, you can use the following steps:

How to Identify Refrigerant Type 1-20 screenshot

Refer to the User Manual: Your dehumidifier’s user manual is a reliable and direct source for this information. It usually contains essential details about the refrigerant type and other technical specifications. Check the manual’s section discussing the refrigerant or unit specifications.

Inspect Labels or Stickers: Manufacturers often affix labels or stickers on the dehumidifier, providing data about the refrigerant type and capacity. Look on the back, sides, or inside the unit for such labels.

Check the Nameplate Information: Locate the nameplate, which is typically a metal or plastic tag found on the rear or side of the dehumidifier. It contains vital details, including the model number, serial number, and occasionally the refrigerant type.

Identify Refrigerant dehumidifier cylinder Type screenshot

Reach Out to the Manufacturer: If you are unable to find the information through the user manual or labels, consider contacting the manufacturer directly. They should be able to provide you with the specific refrigerant type used in your dehumidifier.

Consult a Qualified Technician: Should uncertainty persist after attempting the above methods, it’s best to seek advice from a qualified technician or HVAC professional. They possess the expertise to identify the refrigerant type and offer any necessary maintenance or recharging services.

Always remember that handling refrigerant involves specialized knowledge and equipment, owing to environmental and safety concerns. If you lack experience with refrigerant systems, it is vital to refrain from attempting any work on the dehumidifier yourself and instead seek professional assistance.

How to Recharge Gun Safe Dehumidifiers?

Recharging your gun-safe dehumidifier is an easy task that doesn’t require any special tools or knowledge. All you have to do is keep an eye on the indicator light.

Recharging a Gun Safe dehumidifier
  • Plug it into an outlet when it changes from orange to green. This indicates that it’s time to recharge the unit and will provide hours of peak performance for your gun safe.
  • Let the dehumidifier recharge until the light changes back to orange, then you’ll know it’s ready to use again.
  • Ensure that the unit is away from young children and pets while recharging in order to prevent any accidents.
  • There are many different models and brands of gun-safe dehumidifiers available on the market, so finding one that is rechargeable should not be difficult.

With the right model, you’ll be able to keep your gun safe dry and in top condition without having to worry about harmful chemicals or coolants.

How to recharge hornady dehumidifier?

When it comes to recharging the Hornady dehumidifier, there’s no need to worry about batteries since it isn’t a battery-powered device. Instead, think of it as a ‘reset’ for the silica gel crystals. This process ensures optimal moisture absorption without any battery-related concerns.

Recharging a Hornady dehumidifier

In order to recharge the Hornady dehumidifier, you’ll need to:

  1. Gather a screw driver or battery drill for installation.
  2. Simply remove it from its bracket and place the unit in an area with temperatures above 120°F.
  3. Install the bracket onto the wall of your safe.
  4. Clip the Hornady dehumidifier onto that bracket – and that’s it!  
  5. Once they have finished recharging, just clip the dehumidifier back onto the wall mount and it is ready to use again

Plus, it’s small size makes it easy to store in virtually any gun safe. So make sure to recharge your dehumidifier regularly for maximum protection from moisture damage.

How to recharge Pingi dehumidifier?

Recharging a pingi dehumidifier
  1. Recharge Pingi bags in the microwave oven for optimal results.
  2. If you do not have a microwave oven available, recharge the bag in the sun or on a central heating radiator.
  3. Exceptions are the Pingi ASB-1000 and DSB-600 models which were developed for oven recharging.
  4. Follow the instructions included in the packaging and preheat the oven to the recommended temperature before placing the bag inside.
  5. Allow the bag to remain in the oven for no more than 10 minutes.
  6. Allow the item to cool completely after removing it from the oven before putting it to use.
  7. Make sure to store the bags in a cool, dry place when not in use to maximize their lifetime.

Replace the bag if necessary to avoid damage and ensure optimal performance.Repeat process if necessary, depending on how often you need to use your dehumidifier. 

How to recharge car dehumidifier?

The car dehumidifier charges similar to desiccant dehumidifiers, as they both utilize the same silicon balls in their design.

Recharging a car dehumidifier
  1. Remove the top cover of the unit and locate the desiccant cartridge, usually a plastic container filled with silica gel beads.
  2. Preheat an oven to 200 degrees Fahrenheit or 90 degrees Celsius (whichever your oven allows).
  3. Place the desiccant cartridge in the oven for 1 to 2 hours at that temperature, or until you see that the color of the beads has changed from blue (or other colors) to a light yellow or white.
  4. Remove and let cool completely before replacing it in your car dehumidifier unit.
  5. Once the desiccant cartridge has been replaced, plug in the unit and turn it on. You should notice that it now runs more effectively than before.
  6. To maximize efficiency, keep your car dehumidifier away from direct sunlight and areas of high humidity. This helps to reduce the amount of moisture in the air and allows your unit to work more efficiently

How to recharge GE dehumidifie?

A GE dehumidifier can be an effective tool for removing excess moisture from the air, preventing mold growth, reducing dust mites, and improving indoor air quality. While it may seem intimidating at first, recharging a GE dehumidifier is actually quite simple and straightforward.

Here are some easy steps to follow to recharge your GE dehumidifier:

  1. Make sure the appliance is unplugged and power is off.
  2. Unscrew the housing of the dehumidifier and remove any dirt or dust from inside the appliance.
  3. Insert a new foam filter into the unit before putting it back together.
  4. Locate the recharge port and attach a charged recharging cylinder to it.
  5. Set the humidity level on the appliance to your desired setting and turn the power back on.

Allow the dehumidifier to run for several hours until it reaches your desired humidity level, then unplug it again and remove the recharging cylinder.

Why Do Modern Dehumidifiers Not Have Recharging Kits?

Modern dehumidifiers no longer come with recharging kits due to the environmental concerns associated with its use. The majority of modern dehumidifiers make use of Freon, a compound that is highly damaging to the environment if it is not handled properly.

For this reason, it is illegal in many countries for anyone other than a qualified professional to recharge a device containing Freon. Even if recharging kits were available, they would be incredibly difficult and dangerous to use without proper instruction.

For this reason, we strongly advise against attempting to recharge any modern dehumidifier at home as it can have severe consequences both legally and environmentally. It is far safer and more cost-effective in the long run to simply buy a new unit or to take your current one in to be serviced by a professional.

Precautionary Measures While Recharging A Dehumidifier:

Recharging a dehumidifier can be a dangerous exercise if proper precautions are not taken. It is therefore essential to follow certain safety measures in order to ensure that the process goes smoothly and without any potential harm to the user or environment.

Here are some tips for recharging your dehumidifier safely:

  • Put on protective gear including gloves, goggles, and a dust mask when handling chemicals.
  • Do not attempt to recharge a unit with Freon as this is illegal and hazardous; instead, call a professional for help if you detect any leaks while recharging.
  • Work in an area that is well-ventilated and free of smoking or open flames of any kind.
  • Follow the instructions on the chemical containers to the letter and never mix different chemicals together.
  • Always mix liquid desiccants with water before putting them in the dehumidifier, ensuring that you are following the right chemical-to-water ratio for your particular type of desiccant.
  • Replace your desiccant after a certain period of time as reusing it without replacing can be dangerous.
  • After completing the recharge process, wash your hands thoroughly and remove any clothing that may have come into contact with the chemicals.
  • Finally, store all of your chemicals safely out of reach of children and pets to avoid any potential accidents or misuse.

By taking the necessary safety precautions and following these steps when recharging a dehumidifier, you can ensure that the process is safe and successful. It will give you peace of mind knowing that you are taking proactive measures to protect yourself and your environment against hazardous chemicals and materials.

 Can You Recharge A Portable Dehumidifier?

Yes, you can recharge a portable dehumidifier! There are several methods for doing this quickly and easily. For traditional models, you simply plug the battery into a wall socket to recharge.

Recharging A Portable Dehumidifier?

Newer models, like Afloia, use an innovative silicon bead system with a separate charging base that utilizes heat to rid the beads of moisture before reuse. It’s important to read up on your particular make and model of dehumidifier in order to ensure the safest and most efficient results.

Each unit may have special safety features or lack thereof that must be taken into consideration when recharging it. With the right instructions and precautions, however, recharging your portable dehumidifier is no problem at all.

What To Do When Recharging Does Not Work?

When recharging your air conditioner does not work, it can be a frustrating and confusing experience. However, there are several steps you can take to try and get your unit back up and running again safely.

  1. The first thing you should do is to read the manufacturer’s guide carefully for any troubleshooting tips. This will help you identify what may be causing your problem and how to solve it.
  2. It’s important to ensure that all of the components are properly connected, as this could lead to an insufficient recharge.
  3. If your unit is still under warranty, contact customer service for further assistance.
  4. You should inspect the air conditioner closely for any dirt or debris that may have collected inside of it.
  5. Carefully remove any visible dust or dirt with a vacuum cleaner and brush attachment before beginning the recharging process again.
  6. Once all visible debris has been removed, ensure that the fan is running properly.
  7. Listen for any sounds or rattling noises which may indicate loose screws within the unit.
  8. You can also check to see if the internal compressor is working as well.
  9. If none of these steps help to restore your air conditioner’s performance, it may be necessary to contact a professional technician for further assistance.

Ways To Avoid Charging Your Dehumidifier:

Way to avoid charging your dehumidifier requires a bit of effort on your part, but it’s more than worth the time and energy you’ll invest. With proper care and maintenance, you can enjoy many years of reliable operation with fewer recharge cycles. To maximize the lifetime of your unit, here are a few key steps to follow:

1. Use your dehumidifier efficiently and as intended: Adhering to the manufacturer’s instructions will allow you to make the most out of your dehumidifier and ensure it has the longest lifespan possible.

2. Ensure Your Dehumidifier is Right for Its Room Size: Using a dehumidifier that isn’t powerful enough can cause it to work too hard, leading to burnout or malfunction. It is important to use one that is suited for its environment.

3. Utilize Smart Humidity Control Systems: Most modern dehumidifiers come equipped with humidity control systems which automatically adjust settings in order to maintain desired humidity levels without you having to manually intervene every time.


Discover the delightful secret of keeping your dehumidifier in top-notch condition with ease! Wondering “How to Recharge Dehumidifier?” Worry not! It’s a breeze! Just follow the simple steps and take some preventative measures to avoid frequent recharges. Your trusty unit will keep serving you efficiently for years to come! Show it a little love, use it wisely, choose the perfect unit for your space, and stay on top of regular maintenance.

Related F.A.Qs

which refrigerant cylinder is used in dehumidifiers?

R410A refrigerant is commonly used in modern dehumidifiers. R410A is a chlorofluorocarbon-free (CFC-free) alternative to R22, which is no longer in production due to its negative environmental impact.

How do I know if my dehumidifier needs recharging?

If your dehumidifier isn’t performing as it should, or is taking longer than usual to remove moisture from the air, this may be an indication that it needs to be recharged. Other signs include strange noises coming from the unit and excessive frost build up on the coils. If you notice any of these symptoms, it’s time for a recharge.

How often should I recharge my portable dehumidifier?

The frequency with which you recharge your portable dehumidifier will depend largely on its usage and environment. It is recommended that you check your manual for specific guidelines as to when it needs to be recharged. Generally speaking, however, recharging a dehumidifier every 6 months or so should suffice.

How many years do dehumidifiers last?

Dehumidifiers can last anywhere from 5 to 15 years, depending on the model and how well it is maintained. Regular maintenance such as cleaning the filters and coils, vacuuming out dust and dirt, checking for loose components, ensuring proper airflow, and replacing refrigerant when necessary will all contribute to the longevity of your dehumidifier.

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