Posted: December 9, 2025

Common HVAC Problems

Is It a DIY Fix? Know When to Call a Pro

When the season starts off mild, with sunny days that feel almost like beach days well into October, you may not notice a problem with your HVAC system. But when the temperature drops, and you think, Gosh, it’s chilly in here! Until you realize the heat is off. Uh-oh!

Of course, when your heating or cooling equipment is on the fritz, we’ve got your back! We’re here for you and our techs can get you up and running fast. But sometimes there’s an easy fix that you can handle yourself and can help you avoid the expense of a service call.

Maintenance 101

Keeping your system in good shape is the best way to avoid the need for an emergency repair. Professional maintenance at least once a year is essential, but there are a few things you can—and should—tackle on your own between tuneups.

• Change your filters at least every six weeks in winter, and more often if you have pets. Dirty air filters make your system work harder, reducing efficiency and putting extra strain on components. Clean or replace them as recommended by the manufacturer. Ask our techs to show you how to do this easy DIY job so you can make it part of your routine.
• You can also make sure vents are clear and outdoor units are clear of leaves and debris, particularly after storms or heavy snow.

Troubleshooting

Your heat shutting down abruptly isn’t always the major repair you might think it is. Sometimes, the problem is as simple as a tripped circuit breaker. (Although if this happens frequently, you may need to upgrade your electric panel.)

• Make sure your thermostat is set to a temperature at least 5° above room temperature and set to “heat.” Is it the batteries? Try installing fresh ones.
• If you haven’t checked your tank gauge in a while, you may have run out of fuel—especially if it’s been very cold recently, or if you’ve been spending more time at home during the day. If you’re out, know that we’re on call 24/7 for emergency deliveries.
• If you have a steam boiler, check the water level gauge. It should be at least half-full. Call us if it isn’t.

Why Call a Pro

Modern heating, cooling and ventilation equipment is more sophisticated, with smart panels and high tech efficiency mechanics, that make DIY repairs a bad idea. You can do more damage, or even void your warranty.

Sometimes, a “small” issue is indicative of a bigger issue. For example, if your system is constantly turning on and off, it means it’s having trouble keeping up. One cause could be that your cooling system isn’t big enough for your home. Another cause could be a mechanical problem. Either way, constant cycling on and off will wear the system out quickly and lead to a breakdown. A trained technician can quickly diagnose the problem, and fix it.

Need HVAC Service?

Atlantic-Pratt has a century of experience providing HVAC system repair and services, but we also want to help you prevent problems in the first place. Maintenance is the key, and we offer comprehensive heating and cooling equipment tune-up services as well as comprehensive service plans to help you save on repairs.

Find out why more of your South Shore neighbors trust our knowledgeable and highly trained service with all their home heating (and cooling!) needs. Contact us for more information and to become a customer today.