AC and Heating FAQ

Commonly Asked Questions About AC, HVAC, Central Heating, and Air

With the announcement of new investments from Astara Capital Partners and the establishment of a new executive leadership team Del-Air is ready to offer an even better customer experience to all its customers.

The answer is “Yes.” Here are some simple procedures you can perform before opting for the expense of a service call: Check disconnect switches (indoor and outdoor if you have a split system). Make sure that circuit breakers are ON and that fuses have not blown. Check for sufficient airflow. Make sure air filters are clean and that supply-air and return-air grilles are open and unobstructed. Check the settings on your thermostat. If you want cooling, make sure the temperature control selector is set below room temperature and the SYSTEM switch is on the COOL or AUTO position. If you want heat, make sure the temperature control selector is set above room temperature and the SYSTEM switch is at HEAT or AUTO. The FAN switch should be set at AUTO.

Yes, check out our service troubleshooting section for some help on what you can check to possibly avoid the expense of a service call.

Yes. The maintenance warranties offered do not cover replacement or damage due to external causes.

If your air conditioning drain line has a tee installed, remove the cap and pour one gallon of hot water down the drain slowly so water will not back up into the overflow shut off. Following the hot water, a cup of vinegar may be added to inhibit future buildup in the drain line.

Maintenance warranty protection is is included with all new systems. There are no hidden costs.

Yes, this is typically associated with the defrost cycle on a heat pump and is part of the normal operation. It may also occur on certain model units when heat is running and the temperatures are slightly warmer inside and outside.

No, turning the temperature down further will not make it cool any better and may only compound the problem. If your air conditioner does not seem to be cooling, there may be a problem with its operation and a professional should be called to check the system.

Not typically–on a cold night a heat pump’s outdoor coil will freeze and it must be defrosted to maintain the unit’s heating efficiency. During this process the system will shift modes and may make some loud “whooshing” noises.

Three main factors to consider are:

  • Life expectancy of current system.
  • Operating cost.
  • Looking at the big picture.

When you’re frustrated by an equipment breakdown, it can be tempting to find the least expensive “quick fix” to get on with your life in relative comfort. That “quick fix” may be the least expensive option now, but it may not give you the most value–or cost you the least–in the long run.

Paying for repairs on an old or inefficient system often simply prolongs the inevitable. It’s almost like putting a bandage on a serious injury. An older system that breaks down once is likely to break down again… and again. That means more emergency service calls or, worse yet, the risk of damage to your home or to other components of your heating and cooling system.

Operating Cost

There’s also an ongoing cost factor to consider. Restoring your old system will only bring it back to its current level of energy efficiency. After you’ve recovered from the repair bills and the frustration of system breakdowns, you still won’t save on your energy bills.

Even six-year -old heat pumps and air conditioners are considered grossly inefficient by today’s energy efficiency standards, as are most furnaces built before 1980. With new high-efficiency equipment, you could save up to 60% on your energy bills. That’s why installing a new heating and cooling system can actually pay for itself in energy savings within a relatively short time.

Looking at the Big Picture

When one component of your system breaks down unexpectedly, it’s easy to just focus on repairing or replacing that component. However, each part of your system works with the others to boost efficiency and reliability, so it helps to keep the big picture in mind.

Replacing your old furnace with a new higher-efficiency model but leaving your old mechanical thermostat in place, for example, won’t allow you to enjoy all the efficiency advantages the furnace has to offer. Likewise, if you install a new furnace but don’t get a humidifier, the air may seem cooler, forcing you to operate your new system at a higher temperature to be comfortable. Plus, you can often save on installation costs if you have several components of your system (for example, a furnace and air conditioner) replaced at the same time.

Inspect and change your filter as needed and flush out the drain system on a monthly basis.

It is best to set the temperature to a setting that is comfortable for your individual preferences. Typically, most people are comfortable between 76°-78° for cooling and 68°-70° for heating.

What To Expect

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See What Your Neighbors Are Saying

This past summer, my AC Unit in my New House stopped working during the middle of a HEAT WAVE and Del-Air came through and fixed the problem. My technician was very thorough and took his time to figure out the problem and also explained what needed to be done. I also decided to get the maintenance…

Jennifer R.

Melbourne, FL

Outstanding service! I called Del-Air to report a concern with my A/C system. After listening to my problem, they scheduled a tech to visit the next day. Since I am scheduled to have annual maintenance performed on my system soon, they decided to schedule that work to be done at the same time. The tech was…

4ever V.

Melbourne, FL

My A/C at home stopped cooling. Called Del-Air for assistance, within 4 hours I had a tech on site and the unit fixed in minutes. The tech double checked if all was working good and system all around for issues. Now the best part... it was SUNDAY! Try to find better service than that!

Mariusz S.

Melbourne, FL

We’ve had these guys out for some warranty work since buying our new house in spring 2022. Easy to schedule, technicians are well-trained and do good work - happy to have Del-Air as our HVAC provider!

John S.

Melbourne, FL

I got an appointment the same week I called. They called to let me know when the technician was on his way and the time estimate was spot on. The technician finished the tuneup on time and made sure I got the discount from the card they sent. Del-Air installed my A/C unit in 2018 and…

Terry B.

Melbourne, FL