Dehumidifier Making a Loud Noise- Easy Fix

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Dehumidifiers aid in regulating humidity levels in the house by removing excess moisture from the air. Also, the device prevents the growth of molds and algae on the walls, ceiling, clothes, among others. Further, the dehumidifiers increase the coziness of the living room, bedroom, etc. To use dehumidifiers effectively, it is advisable to connect them with a thermostat that suits your preference.

Dehumidifiers are widely used because of their many advantages. The advantages include; ease of installation, easy to care for and maintain and increase comfortability in the house. Despite the many benefits, the dehumidifiers may start making loud noises while in use. Luckily, the information below shows the lists of the main causes of dehumidifiers making noise and the possible troubleshooting tips.

Common causes of dehumidifier noise and possible troubleshooting tips

dehumidifier making loud noise

Sometimes, the dehumidifier may fail to function correctly and will require instant troubleshooting. Common causes may include; fault blower wheel, fault compressor, among others. Many of these causes are easily fixable without help from skilled personnel. The following are common causes of dehumidifiers making noise and the best solutions for fixing the problems.

1. Fault blower wheel

Fault blower wheel

Sometimes, the blower wheel may fail to rotate freely, resulting in the wheel rolling against the fan housing. Once the blower wheel fails to function, as usual, it results in the emission of loud noise. It is advisable to avoid ignoring the noise and try fixing the problem instantly. The following steps show how to fix the blower wheel.

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  • Switch off the power source and unplug the dehumidifier. Ensure you handle the unplugging process carefully to prevent the occurrence of electric shock. Also, you can wear an anti-wristband for protective measures.
  • Find the position of the blower wheel and disconnect the lower wheel from the dehumidifier.
  • Inspect the blower wheel carefully and identify any possible issues such as loose connection.
  • If the blower wheel is loose, consider tightening it using an appropriate tool such as a screwdriver and a wrench to screw the bolts tightly. Avoid over-tightening the blower wheel and the motor shaft to avoid distorting the blower wheel.
  • If the problem persists after tightening the blower wheel and the motor shaft, consider replacing the wheel.
  • Also, if the blower wheel is distorted beyond repair, replace the wheel instantly to keep the dehumidifier functioning as required.

2. Damaged dehumidifier fan blade

A fan blade is a key component in the dehumidifier, and it forces air to move away from the dehumidifier machine, thus establishing a cooling effect. It is essential to remove excess moisture in the house by drying the air and water that provides the best conditions for mold and algae growth. Once the fan blade rolls against fan housing, a loud noise is emitted due to a sign that the blade is faulty.

Also, a loose fan blade may result in the emission of loud noise. Therefore, it is advisable to check the fan blade carefully before troubleshooting the identified problem. The following steps describe how to resolve a fault fan blade.

  • Assemble all equipment necessary such as a screwdriver, a wrench, a new fan blade in case of replacement, etc.
  • Unplug the dehumidifier from the power source after turning the switch off.
  • Open the dehumidifier and locate the position of the blade fan.
  • Examine the fan blade to see if it is functioning correctly. If not, lost the faults identified.
  • Using a screwdriver and a wrench, screw the loose fan blade in position. Avoid over tightening the fan blade to avoid breaking it.
  • Test the fan blade to see if the noise is eliminated. If the problem persists and the fan blade is damaged, consider replacing it with a new one.

During the replacement or repair process, handle the fan blade carefully to avoid cutting your hand or any other part. Also, consider following the manufacturer’s instructions on how to replace the fan blade. Finally, ensure you position the new fan blade in its correct position to eliminate the noise produced.

3. Distorted fan motor

Distorted fan motor

Fan motor aids in removing moisture from the room or any other place applicable. In most cases, the fan motor fails to lubricate due to insufficient lubricant present in the motor. Low lubricant prevents the fan motor from spinning freely, thus producing loud noise. To troubleshoot the issue, follow the steps below.

  • Before repairing the fan motor, test it using a multimeter to see if there is power transmission into the fan motor. If the fan motor fails to turn on, proceed to the next step.
  • After disconnecting the fan motor, inspect it to detect any defaults.
  • Lubricate the fan motor using the recommended greasing agent. Ensure you lubricate the fan motor evenly and test if the noise is eliminated.
  • If the fan motor is loose, tighten it using appropriate tools.
  • If all the above troubleshooting methods fail, another instant action is necessary. For instance, consider replacing the whole dehumidifier since replacing the fan motor is costly.

Finally, it is advisable to frequently check the grease present in the fan motor and apply it immediately after it is fully used up. Also, consider cleaning the motor to remove old and dirty grease before applying the new one.

4. Distorted dehumidifier compressor

Sometimes, the dehumidifier compressor may get old with time and fail to function as normal. Once the compressor fails to work, irritating and funny noise is produced as a result. If you hear a funny sound from the compressor, it is a sign that the compressor is wearing out and requires replacement. The only way of fixing a wearing compressor is by replacing it with a new one.

If the compressor’s lifespan exceeds more than six years, consider replacing the whole dehumidifier. When replacing the compressor, consider the following factors;

  • Buy a compressor of high quality to last longer.
  • Consider the cost of the compressor. Purchase an affordable compressor.
  • The dehumidifier model. Buy a compressor that suits your dehumidifier and is recommended by the manufacturer.

5. Uneven dehumidifier legs

Sometimes, the dehumidifier may produce loud or clicking noise when placed on an uneven surface. If the legs are inappropriate, a rattling sound is continuously produced unless the problem is resolved instantly. There are different methods of fixing the problem, and they include;

  • Inspect the condition of the dehumidifier legs and see if they are correctly positioned.
  • Adjust the dehumidifier until they are straight. Also, place the dehumidifier on a flat surface or look for possible ways of leveling the floor.
  • If the legs are loose, use a screwdriver and a wrench to tighten them. Avoid tightening them firmly to avoid breaking them.
  • If the legs are dirty, clean them using recommended cleaning detergent.
  • Consider replacing the legs if they are damaged beyond repair and cannot sit upright.

6. Presence of dirt on the internal parts

Dirt present in the machine’s internal parts is the common cause of the dehumidifier making noise. Open the dehumidifier and inspect it carefully. If there is dirt accumulated in the internal components, use the appropriate tool to remove all dirt, such as a vacuum cleaner. Also, consider taking the device to the nearby repair shop for fixation.

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A noisy dehumidifier increases discomfort and irritation, especially at night and mostly if the device is positioned near bedrooms. However, many people tend to ignore the dehumidifier noise by either increasing music volume or sleeping with the noise.

If your humidifier is emitting clicking or squeaking noise, inspect the humidifier for any problem. Also, use the information above to identify the cause of the issues and use the above troubleshooting ideas.

Finally, ensure you tightly screw all loose parts in the dehumidifier using a screwdriver or a wrench. Make sure you frequently service the dehumidifier to increase its lifespan and improve its operation. Finally, call a skilled technician to help you troubleshoot the problem if you cannot fix or replace the dehumidifier parts.

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