AC Repairs: 4 Common Issues That Could Lead To High Indoor Humid Levels

Few things are more uncomfortable than sitting in a room with warm, stuffy, and sticky air. Even if your air conditioner seems to be running properly in the background, your indoor air might have high humidity. So why does your AC fail to regulate the moisture content in the air? The following are possible reasons you need AC repair services to fix high humidity. 

1. Mono-Speed Function  

Some AC systems are only capable of operating at a single constant velocity. They run on or off, making it hard to eliminate the excess moisture in the air. When a unit runs at a single speed, it will go on and cool your home until it reaches the desired temperature on the thermostat. It then shuts off until the temperature increases past the set threshold. In that case, the AC fails to regulate humidity consistently. Technicians may recommend retrofitting the system to install variable speed drives that will improve efficiency and regulate humidity. 

2. Air Pressure Issues

When there's a great pressure differential between your indoor space and outside, air tries to balance itself by pushing through tiny spaces and gaps in your house. This explains why you hear a gust of wind enter the room immediately after opening a door. Similarly, humid air may be sucked into your indoor space due to air pressure problems. Your AC might be too overwhelmed to deal with the unusual increase in humidity. Your AC repair technician might recommend improving your house's ventilation to improve air pressure and decrease humidity levels. 

3. Frozen Evaporator Coils 

It is not uncommon for evaporator coils to freeze. Since ice build-up slows heat transfer, the refrigerant takes more time to absorb heat from the air to lower temperature and humidity. Frozen coils may be caused by a clogged drain, blocked condenser, and refrigerant leaks. Therefore, consider contacting an AC repair technician to defrost the coils and find the cause of the ice build-up. Fixing refrigerant leaks and unblocking drain clogs may solve the problem and lower humidity levels. 

4. Incorrect Thermostat Settings

The "fan on" indicator may dupe you into thinking that the AC is cooling your home. Unfortunately, the fan may blow moisture condensed from the unit back into your indoor space before it gets drained. As a result, you might experience humidity issues. However, an AC contractor can help you reset the thermostat to avoid humidity issues. 

Extremely high humidity levels can expose you to health risks and damage your home. Therefore, work with an AC repair service such as Roth Heating & Air Conditioning to help you balance indoor humidity using your air conditioner.