5 Common Air Conditioning Issues You Should Know About

Summer is here, and the hot temperatures will be sticking around for a while. While an ice cold beverage is comforting, it’s the AC system that can keep our homes and businesses cool during the hot summer season.

If your system malfunctions, it may interfere with home or business operations. It may be a good idea to fix your AC system for this hot season. Here are some of the common issues you may experience with your AC system and how you can fix these problems.

1. Less Cold Air from the Vents

The AC system may be working correctly, but there may be a problem with the ducts and the airflow they produce. If the airflow is restricted, it can become hot and stuffy. You may notice that one room seems warmer than another, or that there is a difference in the temperature between the two rooms.

The problem could be that the ducts need cleaning or a blockage that needs to be removed. The cause of the blockage may be insulation or the use of airtight ducts, which are designed to reduce air leakage.


Check the ducts to see if they are blocked by dust or any other debris. Clean them if this is the case. Contact us for professional duct cleaning and duct sealing services. You need to also check the filter and replace it if necessary. Replace your filter every 60 days, or every 30 days if you have pets that shed a lot of hair.

2. Condensation From Refrigerant

Condensation results from the refrigerant in the AC system turning into gas during the cooling cycle. It can form inside the unit, on the coils, or on the inside walls of the house. The water can cause damage to the coils, as well as to the electrical components. Mold can also develop in the AC and in the walls, which can be expensive to remove and cause further damage.

If there is a high amount of moisture in the air, this could be a sign that the air filter needs to be changed or other mechanical problems.


To resolve this issue, you should install a drip pan at the bottom of the unit. This will prevent water from falling on the unit and the electrical components, and the pan will absorb the excess water. If you are experiencing this problem on a periodic basis, it may be an indication that you need to replace the old unit or have us install a condensation pump.

3. Unusual Sounds

The noises that some AC systems make can be quite worrying. However, some of these noises are normal and should not be a cause for panic.

Doors and windows may rattle when the air conditioner turns on. This is because the vibration produced by the air conditioner causes the windows and doors to shake in their frames.


In most cases, you can alleviate the noise by ensuring that all the screws and bolts are tight and secure. Ensure that all the ducts are secured to prevent flapping. Clean the condenser coils, and lubricate the fan if these measures fail to work. In other cases, unusual noises can be a sign that the unit is reaching its end of life, and you will need to replace it. Many noises can be mitigated by a professional tune-up, which will keep your system tightened, lubricated and in good shape for all seasons.

4. Large Temperature Variations

This can be caused by a number of issues with the AC system or thermostat. The temperature in the house may change drastically as the AC cycles on and off, or your thermostat may not be communicating properly with the outdoor air conditioning unit. You should not experience wild swings in temperature.

Solution: Ensure that you check the thermostat and adjust it if necessary. If it can’t hold the proper temperature consistently, call our office for an air conditioning check-up.

5. Excessive Humidity

If you experience high humidity levels in your home during the summer, it is most likely because the air conditioner does not have the required amount of refrigerant. It may be due to insufficient refrigerant or a leak in the system. It’s also possible the air conditioning unit is not sized properly for your house.


Our technicians can perform AC repair service to check the refrigerant level in the unit and refill it if needed, or find the cause for your indoor humidity.


Many people often overlook these problems and end up replacing their AC units before they actually need to. If you pay attention to these 5 common issues and address them before they get out of hand, you can ensure that your AC is working well and also extend its life.

Holtkamp Heating & Air offers professional air conditioning repairs on your cooling equipment. We provide you with the best service and the most reliable repairs for your home or business. Let us get your cooling equipment running at peak performance. Contact us today!

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