This guide walks you through how to check if your dehumidifier is safe in 2018, including inspecting for recalls, testing electrical components, and ensuring proper maintenance. You’ll learn to spot hazards, understand safety labels, and keep your home protected from fire and mold risks.
Quick Answers to Common Questions
Tip/Question?
How often should I clean my dehumidifier’s filter?
Clean the air filter every 2–4 weeks during heavy use, or monthly during lighter use. A dirty filter reduces efficiency and increases fire risk.
Tip/Question?
Can I use my dehumidifier in a basement without a drain?
Yes, but you’ll need to empty the water tank regularly. Consider a model with an automatic shutoff or a built-in pump for convenience.
Tip/Question?
Is it safe to run a dehumidifier 24/7?
Yes, as long as it’s functioning properly and not overheating. Many modern units are designed for continuous operation.
Tip/Question?
What’s the ideal humidity level for my home?
Aim for 30–50% relative humidity. Use a hygrometer to monitor levels and adjust your dehumidifier accordingly.
Tip/Question?
Should I unplug my dehumidifier when not in use?
Yes, especially if you’re away for extended periods. Unplugging reduces electrical risks and saves energy.
How to Check If Your Dehumidifier Is Safe in 2018
If you own a dehumidifier, especially one purchased before or during 2018, it’s crucial to ensure it’s safe to use. In recent years, several popular dehumidifier models have been recalled due to fire and overheating risks. This guide will walk you through a complete safety check, helping you protect your home, your family, and your property from potential hazards. You’ll learn how to inspect your unit, identify warning signs, verify recalls, and maintain it properly for long-term safety.
By the end of this guide, you’ll know exactly how to check if your dehumidifier is safe in 2018—and beyond. Whether you’re a homeowner, renter, or property manager, these steps are essential for peace of mind and fire prevention.
Why Dehumidifier Safety Matters in 2018
Visual guide about How to Check If Your Dehumidifier Is Safe 2018
Image source: hvactrainingshop.com
In 2018, the U.S. Consumer Product Safety Commission (CPSC) issued multiple recalls involving over two million dehumidifiers from major brands like Frigidaire, GE, LG, and Kenmore. These units were found to overheat, smoke, or catch fire due to faulty internal components, particularly the compressor and wiring. Many of these incidents occurred without warning, causing property damage and, in rare cases, injuries.
The root cause? Defective parts that could degrade over time, especially in high-humidity environments. Because dehumidifiers run for long periods and are often left unattended, a malfunction can go unnoticed until it’s too late. That’s why it’s so important to proactively check your unit—even if it seems to be working fine.
Step 1: Check for Recalls
The first and most important step in determining if your dehumidifier is safe is to check whether it’s been recalled. Recalled units pose a serious fire risk and should not be used until repaired or replaced.
How to Find Your Model Number
To check for recalls, you’ll need your dehumidifier’s model and serial numbers. These are usually located:
- On a label inside the front or side panel (often behind the air filter)
- On the back or bottom of the unit
- In the user manual or on the original packaging
The model number typically starts with letters (like “DH70” or “ADR45”) and may include numbers and dashes. Write it down exactly as it appears.
Search the CPSC Recall Database
Visit the official U.S. Consumer Product Safety Commission website at cpsc.gov/recalls. Use the search bar to enter your brand and model number. You can also browse recalls by category—select “Home Appliances” and then “Dehumidifiers.”
Alternatively, use the CPSC’s free recall app or call their hotline at 1-800-638-2772.
What to Do If Your Unit Is Recalled
If your dehumidifier appears on a recall list:
- Stop using it immediately. Unplug it and do not operate it under any circumstances.
- Contact the manufacturer. Most companies offer free repairs, replacements, or refunds. Follow their instructions carefully.
- Do not attempt DIY fixes. Tampering with recalled units can void warranties and increase risks.
For example, in 2018, LG recalled over 900,000 dehumidifiers due to fire hazards. Owners were instructed to register online and receive a free repair kit or replacement unit.
Step 2: Inspect the Power Cord and Plug
A damaged power cord is one of the most common causes of electrical fires in home appliances. Even if your dehumidifier isn’t recalled, a frayed or worn cord can be dangerous.
Visual Inspection
Unplug the dehumidifier and examine the power cord from plug to unit. Look for:
- Fraying or cracking: Exposed wires are a major fire hazard.
- Discoloration or burn marks: These indicate overheating or arcing.
- Loose or bent prongs: The plug should fit snugly into the outlet.
- Brittleness or stiffness: Old cords can become brittle and crack.
If you see any of these signs, stop using the unit and replace the cord or the entire dehumidifier.
Test the Plug and Outlet
Plug the dehumidifier into a different outlet to rule out outlet issues. If the unit doesn’t turn on, the problem might be the outlet—not the dehumidifier.
Use a plug-in circuit tester (available at hardware stores for under $10) to check if the outlet is properly grounded. A dehumidifier should always be plugged into a grounded (three-prong) outlet.
Use a GFCI Outlet
For added safety, plug your dehumidifier into a Ground Fault Circuit Interrupter (GFCI) outlet, especially in basements, bathrooms, or laundry rooms where moisture is present. GFCI outlets shut off power instantly if they detect a ground fault, reducing the risk of shock or fire.
If your home doesn’t have GFCI outlets in these areas, consider having an electrician install them.
Step 3: Listen for Unusual Noises
Your ears can be a powerful tool in detecting problems. While dehumidifiers make some noise during operation, certain sounds indicate trouble.
Normal vs. Abnormal Sounds
Normal sounds include:
- A steady hum from the compressor
- Fan noise as air circulates
- Occasional gurgling as refrigerant flows
Abnormal sounds to watch for:
- Buzzing or humming that’s louder than usual: Could indicate electrical arcing or a failing compressor.
- Clicking or popping: May signal a relay or switch malfunction.
- Grinding or scraping: Suggests mechanical wear in the fan or motor.
- Loud bangs or sparks: Immediate danger—unplug and stop use.
If you hear any of these, turn off the dehumidifier and inspect further.
When to Call a Professional
If unusual noises persist after cleaning and basic checks, it’s best to consult a qualified technician. Electrical and compressor issues require specialized tools and knowledge.
Step 4: Check for Overheating
Overheating is a major red flag. Dehumidifiers generate heat during operation, but they should never become too hot to touch.
How to Test for Overheating
After running the dehumidifier for 30–60 minutes:
- Touch the exterior casing (avoid hot spots near vents).
- If it feels uncomfortably hot or you can’t hold your hand on it for more than a few seconds, it may be overheating.
- Smell for burning plastic, rubber, or electrical odors.
Overheating can be caused by:
- Blocked air filters or vents
- Dirty coils
- Faulty thermostat or compressor
- Overloading the unit (running it in a space too large for its capacity)
What to Do If It Overheats
If your dehumidifier overheats:
- Turn it off and unplug it immediately.
- Let it cool for at least 2 hours.
- Clean the air filter and check for blocked vents.
- Ensure it’s not placed near heat sources or in direct sunlight.
- If it overheats again, stop using it and contact the manufacturer or a repair service.
Never ignore overheating—it’s a leading cause of appliance fires.
Step 5: Inspect the Water Tank and Drainage System
A malfunctioning water tank or drainage system can lead to leaks, mold growth, and electrical hazards.
Check the Water Tank
Remove the water collection tank and inspect it for:
- Cracks or warping
- Mold or mildew buildup
- Sticky residue or odors
Clean the tank weekly with warm, soapy water and a mild bleach solution (1 tablespoon bleach per gallon of water). Rinse thoroughly and dry before reinserting.
Test the Float Switch
The float switch shuts off the dehumidifier when the tank is full. To test it:
- Fill the tank partially and reinsert it.
- Turn on the dehumidifier and observe if it runs.
- If it doesn’t stop when the tank is full, the float switch may be stuck or broken.
A faulty float switch can cause overflow, water damage, or electrical shorts.
Inspect the Drain Hose (If Applicable)
If your dehumidifier has a continuous drain hose:
- Check for kinks, clogs, or leaks.
- Ensure the hose is securely attached and draining into a suitable location (e.g., floor drain or sump pump).
- Clean the hose monthly to prevent mold and mineral buildup.
Step 6: Clean and Maintain Your Dehumidifier
Regular maintenance is essential for safety and efficiency. A dirty dehumidifier works harder, overheats more easily, and poses a greater fire risk.
Clean the Air Filter
The air filter traps dust and allergens. A clogged filter restricts airflow, causing the unit to overheat.
To clean:
- Unplug the dehumidifier.
- Remove the filter (usually behind a front panel).
- Rinse it under warm water or vacuum it.
- Let it dry completely before reinserting.
Clean the filter every 2–4 weeks during heavy use.
Clean the Coils and Interior
Over time, dust and mold can accumulate on the evaporator and condenser coils. This reduces efficiency and increases fire risk.
To clean:
- Use a soft brush or vacuum with a brush attachment to remove loose debris.
- Spray coil cleaner (available at hardware stores) and let it sit for 10–15 minutes.
- Wipe gently with a damp cloth.
- Never use water directly on electrical components.
Do this every 6 months or as recommended in the manual.
Wipe Down the Exterior
Use a damp cloth to clean the outside of the unit. Avoid harsh chemicals that could damage plastic or leave flammable residues.
Step 7: Follow the Manufacturer’s Instructions
Every dehumidifier is different. The user manual contains vital safety information, including:
- Recommended room size and humidity levels
- Maintenance schedule
- Warranty details
- Contact information for support
If you’ve lost your manual, search the manufacturer’s website using your model number. Most companies offer free PDF downloads.
Important Safety Labels
Check for safety certification labels such as:
- UL Listed: Indicates compliance with safety standards set by Underwriters Laboratories.
- ETL Listed: Similar to UL, certified by Intertek.
- CSA Certified: Canadian Standards Association approval.
Avoid using uncertified or counterfeit units, especially those purchased from unknown online sellers.
Troubleshooting Common Safety Issues
Even with regular checks, problems can arise. Here’s how to handle common issues:
Dehumidifier Won’t Turn On
- Check the power cord and outlet.
- Ensure the water tank is properly seated.
- Test the float switch.
- If none work, the internal fuse or control board may be faulty.
Unit Smells Musty or Moldy
- Clean the water tank and filter.
- Run the dehumidifier with a cup of white vinegar in the tank to disinfect.
- Ensure the room is well-ventilated.
Excessive Vibration or Movement
- Place the unit on a flat, stable surface.
- Check for loose screws or panels.
- Ensure the fan isn’t obstructed.
Water Leaking
- Check the tank for cracks.
- Ensure the drain hose is not clogged.
- Verify the unit is level.
When to Replace Your Dehumidifier
Even with proper care, dehumidifiers have a lifespan—typically 5 to 10 years. Consider replacing your unit if:
- It’s over 10 years old.
- It frequently overheats or makes loud noises.
- Repairs cost more than 50% of a new unit.
- It’s been recalled and no repair is available.
- Energy efficiency has declined (higher electricity bills).
Newer models are more energy-efficient, quieter, and include advanced safety features like auto-shutoff and humidity sensors.
Conclusion
Checking if your dehumidifier is safe in 2018 isn’t just a one-time task—it’s an ongoing responsibility. By following these steps, you can significantly reduce the risk of fire, electrical hazards, and mold growth. Start with a recall check, inspect the cord and plug, listen for unusual sounds, monitor for overheating, and maintain the unit regularly. Always use a GFCI outlet and follow the manufacturer’s guidelines.
Your dehumidifier should make your home healthier and more comfortable—not put it at risk. Stay proactive, stay informed, and keep your family safe.