Repair Your Musty Hamilton Air Conditioner in 5 Steps

Adam's Air Systems • April 27, 2023

Don't let a musty air conditioner ruin your summer - follow these 5 easy steps to repair it today.

As temperatures rise, we all rely on our air conditioners to keep us cool and comfortable. But what happens when your air conditioner produces a musty smell? Not only is it unpleasant, but it could also be a sign of a bigger problem.

Step 1: Check the Air Filter

The air filter is responsible for trapping dust and debris as the air conditioner circulates air through your home. Over time, the filter can become clogged with dirt and restrict airflow - leading to poor air quality and even musty smells. Check the air filter and replace it if it looks dirty or has been in use for longer than three months.

Step 2: Clean the Coils

Dirty coils can also contribute to a musty smell. The evaporator coil, located inside the air conditioner, can collect moisture and dust as it cools the air. This can lead to mold and mildew growth - causing the stale smell you're experiencing. Turn off the power to the air conditioner and gently clean the coils with a soft brush or cloth to remove any buildup.

Step 3: Empty the Drip Pan

Water that collects in the drip pan can also cause a musty smell. If the pan is full, it can overflow and cause water damage. To prevent this, empty the drip pan regularly - especially during humid weather. You can also clean the pan with soapy water to remove any buildup.

Step 4: Check the Dehumidifier

If your air conditioner has a dehumidifier function, it's possible that it's not working properly. A malfunctioning dehumidifier can leave excess moisture in the air, leading to mold and mildew growth. Check the settings on your air conditioner and make sure the dehumidifier is turned on and set to the appropriate level.

Step 5: Call a Professional

If you've followed these steps and your air conditioner still produces a musty smell, it's time to call in a professional. A qualified technician can perform a thorough inspection of your air conditioner and identify any underlying problems. They can also provide cleaning and Hamilton air conditioner repair  services to keep your air conditioner running smoothly.



A musty air conditioner can be a sign of a bigger problem. By following these 5 easy steps, you can repair your air conditioner and enjoy cool and clean air once again. Remember to check the air filter, clean the coils, empty the drip pan, check the dehumidifier, and call a professional if necessary. 


At Adams Air, we specialize in air conditioning repair, we're here to help you stay cool and comfortable all summer long. We offer reliable and affordable air conditioning repair services in Hamilton and the surrounding areas. Our team of certified technicians has the knowledge and experience to handle any air conditioning problem - big or small. Don't let a musty air conditioner ruin your summer - Contact us today to schedule your appointment.


A man is sitting in front of a radiator holding a light bulb.

HVAC Troubleshooting Tips for Homeowners

By Adam's Air Systems • April 15, 2025
HVAC Troubleshooting Tips for Homeowners
A white fan is sitting on the side of a building

Should I Keep My HVAC Fan Running?

By Adam's Air Systems • March 18, 2025
The Pros and Cons of keeping the HVAC fan running
A fan is covered in snow next to a fence

Keep Your HVAC System Running Well in the Winter

By Adam's Air Systems • February 19, 2025
HVAC in the Winter
A man is kneeling down and working on a furnace

My Furnace is Making Strange Noises – What Should I Do?

By Adam's Air Systems • January 16, 2025
If your furnace is suddenly making strange or unusual noises, don't ignore it. While some sounds can be harmless, others may signal underlying issues that require immediate attention. To help you ensure your home stays warm and safe, here’s a breakdown of what those noises might mean and what you can do about them.
A bunch of air conditioner fans are sitting on top of each other.

Top 10 Benefits of Upgrading to Energy- Efficient HVAC Systems

By Adam's Air Systems • December 17, 2024
When it comes to keeping your home comfortable, your HVAC system plays a crucial role. But did you know that upgrading to an energy-efficient HVAC system can do much more than heat or cool your home? It can reduce energy consumption, cut down on your utility bills, and even increase the quality of life for you and your family. For homeowners in Hamilton, making the switch to an energy-efficient system is an investment that pays off in multiple ways. If you're considering an upgrade, here are the top ten benefits of choosing energy-efficient HVAC systems.
A picture of a heat pump and a picture of a furnace.

Heat Pump or Furnace? Choosing the Right Heating Solution for Your Home

By Adam's Air Systems • November 26, 2024
When it comes to keeping your home warm during cold seasons, the decision between a heat pump and a furnace can be tricky. Both heating solutions have their unique benefits, but choosing the right one for your home depends on several factors, including your budget, energy efficiency, and climate. If you're in the Hamilton area, trusted experts like Adam's Air Systems in Hamilton can help you make an informed decision. Let's break down the key considerations for both options:
A room with a large hot water heater and a lot of pipes.

Battle of the Hot Water Tanks

By Adam's Air Systems • October 26, 2024
In today's eco-conscious world, the quest for energy efficiency extends even to our home water heating systems. Homeowners are increasingly faced with a decision between traditional hot water tanks and their modern counterparts, tankless water heaters. But which is the right choice for your home? This comprehensive guide explores the pros and cons of each, helping you make an informed decision that aligns with your lifestyle and environmental values.
Furnace Repair Hamilton

Tell me About Furnace Tune-ups

By Dawn Sherwin • September 23, 2024
Furnace tune-ups are essential maintenance procedures designed to ensure that heating systems operate efficiently and safely. During a tune-up, a qualified technician typically performs a thorough inspection of the furnace, checking for any signs of wear or potential issues. This includes cleaning and adjusting burners, inspecting the heat exchanger for cracks or corrosion, and ensuring that all safety controls are functioning correctly.  Regular tune-ups not only enhance the efficiency of the furnace, leading to lower energy bills, but also extend the lifespan of the unit and reduce the likelihood of costly repairs down the line. Additionally, a well-maintained furnace contributes to improved indoor air quality, making it a crucial investment for any homeowner.

Take Control of Home Humidity for Ultimate Comfort

By Dawn Sherwin • August 13, 2024
Ever felt like your home is too sticky in summer or too dry in winter? Humidity plays a crucial role in your home's comfort and health. Understanding how to manage it with your HVAC system can make all the difference. This blog post will guide you through the importance of controlling humidity, the impact on your home and health, and how to use your HVAC system to keep it in check. You'll also find practical tips to maintain optimal humidity levels, ensuring a comfortable and healthy living environment.

Program Your AC and Furnace Settings

By Adam's Air Systems • July 15, 2024
Properly programming your AC and furnace settings can drastically improve your home's energy efficiency and comfort levels. Start by setting a consistent schedule to match your daily routine. For instance, during the summer, set your AC to a higher temperature when you are away from home and lower it when you are typically there.  Conversely, in the winter, lower the furnace settings when the house is empty and raise them when you are back. Utilizing programmable thermostats or smart home devices can automate this process, making it more convenient and reducing the chance of human error. Additionally, it's essential to perform regular maintenance, such as changing filters and checking for leaks, to ensure your HVAC system operates at peak performance.
Show More