Do you frequently move your portable dehumidifier only to discover it’s leaking from the bottom? Or do you find a pool of water beneath a wall-mounted unit? If so, you’ve probably been left wondering, “Why is water from my dehumidifier ending up on the floor?

A leaking dehumidifier can, ironically, give rise to the very issue it’s designed to prevent: the presence of dampness and excess humidity. Therefore, the process of uncovering the reasons behind this leakage is just as vital as developing a solution.

So, join me below as we explore the main reasons why your dehumidifier may be leaking water onto the floor, and offer some simple, easy, and effective solutions to combat this annoyance and regain total control.

Why Is Your Dehumidifier Leaking Water Onto The Floor?

A dehumidifier leaking water onto the floor is caused by one of the following; poor drainage, loose hose fittings, improper leveling, excessive humidity, or frozen coils.

Regardless of the cause, it is both exasperating and potentially unsafe. Water from a leaking dehumidifier unit can turn any space into a slippery hazard, as well as create an ideal breeding ground for mold and mildew, compromising your safety and quality of life.

By comprehending the underlying cause of the leak and delving into the contributing factors, we can effectively ensure that the dehumidifier operates at its best, successfully fulfilling its intended role of creating a dry and comfortable environment.

Here Are the Most Common Reasons Why Your Dehumidifier is Leaking:

Poor Drainage

In many dehumidifiers, a key component of the unit’s design is its drainage system. This system is responsible for directing the extracted moisture away from inside your dehumidifier. When the drain system isn’t functioning optimally, water can accumulate in the water collection bucket or overflow channels, eventually leading to leakage.

The buildup of excess water can strain the capacity of the water reservoir and cause unintended seepage onto the floor. Regular maintenance, such as cleaning out drainage lines and ensuring unobstructed water flow, can help prevent this issue.

Loose Hose Fittings

Dehumidifiers almost always rely on hoses to transport collected water to appropriate disposal points. If these drain hoses are not securely connected or if the fittings become loose over time, water can escape from these junctions.

This water leakage can not only damage your flooring but also impact the efficiency of your dehumidifier’s water removal process. Disconnect and check the drainage hose connections regularly. Inspecting it for cracks, clogs, and tighten any loose fittings can go a long way in preventing leaks caused by this issue.

Improper Leveling

Placing your dehumidifier on an uneven surface may seem like a minor concern, but it can have a significant impact on its operation and performance. When the appliance isn’t level, water tends to accumulate unevenly within its internal components. This uneven distribution could cause water to overflow from certain areas and cause leaks.

It’s important to ensure that your dehumidifier is placed on a stable and level surface to facilitate proper water collection and discharge, thus avoiding the possibility of water leaking onto your floors.

Excessive Humidity

Dehumidifiers are designed to tackle high humidity levels, but in extremely humid environments, they might struggle to keep up with demand. When the air’s moisture content is exceptionally high, the dehumidification process becomes more challenging. 

In these instances, the evaporator coils within the appliance can develop frost due to the excess moisture, and when these frozen coils melt, the resulting water can escape and create leaks.

Adjusting the humidity settings on your dehumidifier to match the conditions of your space can help prevent this problem. If adjusting your unit’s settings doesn’t work, you may also need to upgrade to a model with a higher dehumidification capacity

Faulty Coils

The coils inside a dehumidifier play a pivotal role in the moisture removal process. These coils cool and condense the moisture from the air, facilitating its removal. If these coils become damaged or malfunction, the dehumidification process can be compromised.

When this happens, it can lead to not only reduced efficiency in moisture removal but also cause water leakage. Regular maintenance, including cleaning the coils and addressing any signs of damage, can help mitigate this issue and prolong your dehumidifier’s lifespan.

Bad Pump

Some dehumidifiers make use of pump mechanisms to expel collected water, especially when the unit is located in a low-lying or challenging drainage area, such as a crawlspace. If your dehumidifier is experiencing leaks, it’s crucial to check the pump’s condition.

Malfunctioning Overflow Switch

Some dehumidifiers feature an overflow switch as a built-in safety mechanism to prevent overflow. This switch activates when the water bucket reaches its maximum capacity, shutting off the dehumidifier to avoid spills.

If the overflow switch becomes faulty, it may fail to trigger the cutoff, causing the dehumidifier to leak water onto the floor. Regularly check the overflow switch’s functionality to ensure it’s operating correctly to prevent this type of leakage.

Low Ambient Temperature

When your dehumidifier operates in environments with temperatures consistently below 60 degrees Fahrenheit, a common issue is the formation of ice on the unit’s internal coils. These coils are instrumental in cooling the air and condensing moisture.

In frigid conditions, the coils can accumulate ice, impairing their functionality and potentially causing the dehumidifier to malfunction. As the temperature rises, the ice will melt causing water leakage from the bottom of your dehumidifier.

Relaxing with a working humidifier

Dehumidifier Leaks – Mystery Solved

Unexpectedly finding out your dehumidifier has a water leak onto the floor can be a frustrating and potentially hazardous ordeal. Ironically, a device designed to combat dampness and high humidity can sometimes become the source of it.

Whether it’s poor drainage, loose hose fittings, improper leveling, excessive humidity, faulty coils, a malfunctioning pump, or a failing overflow switch, each issue can be effectively resolved.

So, take charge of your dehumidifier’s performance, and say goodbye to those unexpected puddles on your floor. 

Regular maintenance, proper placement, and adjusting settings to match your space’s conditions can make a significant difference. Remember, a well-maintained dehumidifier not only keeps your surroundings dry and comfortable but also helps prevent potential hazards like slippery floors and mold growth.

Hopefully after checking the conditions above you were able to correct the issue. If you have done all of the troubleshooting and your dehumidifier is still leaking water. It may be time to purchase a new one. If that is the case let us be your guide.