Why My AC Can’t Keep Up
New Jersey summers are hot and humid, sometimes exceptionally so. When it gets really hot outside, we often have clients tell us that their homes are not staying cool; their air conditioning just doesn’t seem to be doing a good job. Does this mean there is something wrong with their system? Not necessarily.
Most A/C systems are designed to handle typical summer conditions, not extreme heat. New Jersey summer temperatures exceed 91°F only 2% of the time. The cooling systems are based on design standards that the energy code mandates. At a 91°F outdoor temperature, your A/C can maintain about 74°F indoors, but when it climbs higher outside, say 95–100°F, the system can’t keep up, and indoor temperatures may rise to around 80°F.
In short, if your A/C struggles during a heat wave, it might not mean something is wrong; it is more likely that your air conditioner is just reaching its design limits.
Do I need a bigger A/C system?
A bigger system will be more powerful, so when the outdoor temperature is in the normal range–less than 100 degrees— the system will very quickly be able to reduce your home’s indoor temperature. But because it cools so quickly, the system will not run long enough to dehumidify the air. It is the dehumidification that makes your home comfortable, so if the humidity is still in the air, your home will feel cool and clammy. Moist air, even if it is cool, is not comfortable. Getting a bigger unit than your home needs is not the answer.
Your A/C must be sized properly for the load of your home and kept in good running condition. Don’t let someone who hasn’t performed a load calculation tell whether your system is properly sized or not.
How can I make sure my A/C is running well?
Regular expert tune‑ups and maintenance are key. Having trained technicians perform a full seasonal check that includes inspecting and replacing air filters, checking refrigerant levels, examining electrical components, cleaning coils, checking the condensate drain, and performing a complete safety and performance inspection will help your system run efficiently and reliably. Regular maintenance like this not only prolongs the life of your equipment but also keeps you comfortable and can help prevent costly breakdowns when the heat is at its worst.
Are there some ways I can help my A/C keep my home comfortable?
There are several things you can do to help your home feel more comfortable and reduce the load on your air conditioning.
- Take a quick walk around your home. Make sure none of the registers on the floor or wall are blocked or obstructed at all. This could lead to inefficient system performance as well as decreased comfort.
- Use blinds or drapes to limit the sun coming from windows during the day. Studies have shown that medium-colored drapes with white plastic backing can reduce heat gains up to 33%!
- Shut down any electronics or lights that don’t need to be on. Electronic equipment, such as televisions, computers, and video game consoles, generates heat and forces your air conditioning system to work harder. Shutting off any equipment you don’t need will not only keep temperatures down, but it will also save you money on your electric bills.
- Limit the use of your oven or stove. Instead of making dinner, make a reservation! Using an oven or stove can drastically increase the temperatures in your home.
How do I know when it’s time to replace my A/C?
Deciding whether it makes more sense to replace your air conditioning system than to repair it is an individual decision. Most systems are designed to run for around 12-15 years (some shorter, some longer), so if it is older than that, it might be time to consider replacement.
Additionally, if you’re calling for repairs often, or the system is leaking or causing odors, the system might be at the end of its life. You can read more about how to choose between repair and replacement of your A/C on our website.
Keep Your A/C in Top Condition with Professional Maintenance
Keeping your air conditioner in top shape isn’t just about cooling your home; it’s about peace of mind and comfort all season long. With regular maintenance and expert tune-ups, your system can operate at its best even when temperatures soar, running efficiently and reliably while lasting longer. By taking care of your A/C and addressing minor issues before they become major problems, you can enjoy consistent comfort during even the hottest New Jersey summers. Over time, this proactive care helps your home stay cooler, your system stay healthier, and your indoor environment more comfortable overall.