How to Contend With Mold Growth in the Drip Pan

Published on: July 25, 2012

HVAC systems include a number of intricate elements such as an evaporator coil and heat pump, which work together to keep the temperature in your home comfortable. Your system also includes a drip pan to catch water from your unit, which can condense from your evaporator coil. As a result, you will need routine air conditioning maintenance on your unit.

Your Unit’s Drip Pan

In order to prevent water damage from occurring, your HVAC system features a drip pan. When your unit runs, it will create water, which drains into the drip pan. If the water remains in your unit’s pan for a long time, then mildew and mold will grow. Once water accumulates, it usually means that you have a clogged line and should contact our AC repair team for assistance.

After we remove the water from your drip pan, there are steps we will take to stop the mold from coming back. Be sure to contact our air conditioning maintenance team to prevent clogs from occurring.


Our AC repair company will clean your unit’s drain line by locating the line section on the exterior of your home. With a shop vacuum, we will remove the clog from your line and clean your unit’s drip pan with a bleach solution, which will kill the mold and prevent the fungus from returning.

After our air conditioning maintenance team completes the cleaning process, you’ll want to keep an eye on your drip pan to make sure the mold does not return.

HVAC Unit Design

If your HVAC system is more than 10 years old, then it may include an outdated design. You can contact our AC repair team to review your unit for design flaws. In order for mold to grow, it needs a dark location, moisture, organic material and a solid surface. Your HVAC unit is likely to include the perfect breeding ground for the fungus.

When your drain pan is the correct shape, it will dissuade the growth of mold. Our AC repair staff will review the shape of your pan to ensure that water from your system is draining out of the device.

Ultraviolet Light

When you contact our air conditioning maintenance staff for routine maintenance, we will inspect your unit for mold. With older systems, we may suggest installing an ultraviolet light, which will kill the fungus.

In fact, an ultraviolet light will typically kill the airborne elements that cause mold. With this feature, you’ll have a device that will kill mold before it has a chance to form in your drip pan. However, with the light addition, you must use caution as human exposure to the light can cause eye damage. Once our AC repair department discovers mold, we will recommend the best way to eliminate the fungus.

You can protect the health of yourself and your family members by ensuring your drip pan is free of mold. When you contact our air conditioning maintenance team, we will complete the proper upkeep on your unit to prevent the dangerous fungus from forming.