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As Arizona’s #1 AC company, we promise to do more than provide a service and walk away. We’re also going to educate you on our recommendations so you’re armed with the wisdom you need to feel confident we are the best option for your comfort… and your wallet. We listen to your questions and take the time to answer them honestly. In fact, we have answered some of the most commonly asked questions below. Don’t see what you’re looking for? Give us a call and we’ll be happy to help!

Air Conditioning / Heating FAQs

The best central air units are reliable, efficient and quiet. Today’s new central air units can cool more with less electricity and refrigerant than in days past due to massive technological improvements. Still, even the top central air units require regular maintenance and cleaning to have a long, fruitful life.

Good air conditioners can last as long as 15 years if they’re properly maintained, but average air conditioners are expected to develop problems after seven to ten years if they’re neglected. If you want to get the most out of your new system, check your filters monthly and replace them as needed, keep your outdoor unit clean and free of debris, and shade the unit during the hottest parts of the day. By performing a little easy maintenance, you can greatly extend the life of your air conditioner and keep it working at its best.

The best temperature for your thermostat is the highest one at which you and your family still feel comfortable. For many people, this point is between 75 and 80 degrees Fahrenheit; for others it’s much lower. Try setting the thermostat higher when summer first creeps up, then turn it down until you find a suitable temperature.

There are several ways to increase the efficiency of your air conditioner, including leaving all air vents unblocked, installing a programmable thermostat, doing regular maintenance on your system, and using ceiling fans to help keep rooms feeling cooler so you can comfortably turn the thermostat up.

Heating and air conditioning systems get old, just like people, and eventually fail. If you elect to replace your unit before it suddenly comes to a halt, you’ll have more control over the timing of replacement and type of furnace or air conditioner installed. You’ll know it’s time to start thinking about a new unit when your current unit reaches about seven years of age, begins costing more to run than in years previous, or suddenly needs frequent repairs.

In the long run, you’ll be way ahead of the game if you choose to replace your unit before it totally collapses. Not only will you save a bundle because of the efficiency of a newer unit, you’ll also avoid costly repairs on your old unit.

The best way to ensure that you have the correct sized air conditioner installed is to have an HVAC professional accurately measure and perform a proper new unit evaluation of your entire home . There are a number of variables that go into calculations that determine how much tonnage any given home requires, including how much shade the outdoor unit will receive.

It’s important to buy a properly sized air conditioning unit. (This is one of those cases where bigger isn’t always better.) An undersized unit may run all the time and still not completely cool your home. On the other hand, an oversized unit will tend to short cycle, running in limited bursts that cool your home, but don’t remove excess humidity. Short cycling is expensive, since the majority of an air conditioner’s energy is used during startup.

All modern air conditioners are more energy efficient than older units—as much as 60 percent more efficient than similar units that were built just 10 years ago. However, some units are more efficient than others, and the more efficient your unit, the more cooling you’ll get out of the same amount of electricity.

You can compare new air conditioning units by their Seasonal Energy Efficiency Rating (SEER). Higher numbers mean more efficiency. Today’s typical low-end unit is a SEER 13, but units are available that exceed SEER 20. By 2015, certain regions of the United States will be upgraded to a SEER 14 standard, meaning that SEER 13 units will not be purchasable in these areas. You’ll have to balance your desire for energy efficiency with your budget to determine what best makes sense for your home.

Good air conditioners can last as long as 15 years if they’re properly maintained, but average air conditioners are expected to develop problems after seven to ten years if they’re neglected. Our Precision Plus AC Units come with a lifetime unit replacement warranty, the best in the industry. In order to maintain your AC unit and its warranty, it is important to perform yearly maintenance. If you want to get the most out of your new system, be sure to check your air filters monthly and replace them as needed, keep your outdoor unit clean and free of debris, and shade the unit during the hottest parts of the day. By performing a little easy maintenance, you can greatly extend the life of your air conditioner and keep it working at its best.

Some filter sizes are less common than others due to differences in manufacturing and material quality. If you can’t find your filter at your local home improvement store, contact us and we can order the filter directly from the manufacturer. You may discover that the filter that came with your unit is reusable, requiring you to only wash it gently once a month rather than replace it. Reusable filters can be just as good at pulling dust and pollutants out of the air as disposable filters and are rated using the same scale. For the best results, invest in an electrostatic washable air filter. Premium brands like BoAir will offer a lifetime warranty making it an even more compelling option.

Plumbing FAQs

Just as good or even better. We use the same technology, reverse osmosis (RO), as other major bottling plants use to filter water. Our drinking water has a refreshing taste with a touch of minerals —not like the flat taste of distilled or bottled water. RO systems purify water daily in your home which is more naturally fresh and healthy compared to stagnant water that has been sitting in plastic bottles for many months.

The five-stage system design delivers the most stable and complete RO process for home water purification, and it allows you to manage the unit’s performance and ensure the purity of the water to protect you and your family, something that you cannot do with bottled water. This eco-friendly solution also protects the environment from plastic waste as RO users will never have to purchase bottled water ever again!

Cities are in desperate need of replacement from old age and wear. Water contamination can occur at almost any point in the delivery channel including lead leaching from corroded pipe solder, bacteria entering the system from water main breaks, or gardening chemicals back-siphoned from a careless neighbor.

Unfortunately most local and state governments do not have the financial resources to address these very expensive problems now or in the foreseeable future. To make matters worse, most cities also add chemicals like chlorine and fluoride to their water. The truth is, tap water quality in the US will most likely continue to decline in the coming years. The best way to protect your family from the increasingly wide range of contaminants found in today’s tap water is by installing a reverse osmosis drinking water system.

RO is the most convenient and effective method of water filtration. It filters water by squeezing water through a semipermeable membrane, which is rated at 0.0001 micron (equals to 0.00000004 inch!). This is the technology used to make bottled water, it is also the only technology capable of desalinating sea water, making it into drinking water.

This is actually the biggest myth in the water industry. To understand the issue clearly, first we need to examine “what minerals” are in our tap water. If we were to send a sample of water to a testing laboratory, we would get back a report that includes calcium, magnesium, and sodium along with a list of other minerals and contaminants. While some of these minerals are safe and benign, there are also many toxic ones on this list including fluoride, arsenic, chromium and radium just to name a few. Unfortunately there are no filtration systems available that can differentiate between good and bad minerals. Basic carbon filter systems will leave in all the minerals, including the highly toxic and radioactive ones. On the other hand, RO systems will remove 90-99% of these undesirable contaminants.

We recommend changing your filters once a year. The membrane should be changed once the TDS (total dissolved solids) in the water are above 100 pm. This can be checked with a TDS tester.

Home Performance FAQs

There has been a lot of talk within the heating and cooling industry about the impending phase out of R22 and what that means to our customers. Information that is both factual and also misleading.

Hydrochlorofluorocarbon, is a colorless gas better known as HCFC-22 or R-22. R22 is the main ingredient used in air conditioning units for over the past 4 decades. Unfortunately, a byproduct of R22 when leaked into the atmosphere is a noticeable depletion in the Ozone Layer. There is more detail on this by visiting the EPA’s Montreal Protocol. So, in 1992, The EPA began a phase-out of this ingredient due to these ozone depleting properties.

The original phase out of this mandate slated for a 90% reduction in R22 consumption by the year 2015 and a 99.5% near elimination of all R22 production by 2020. However, the EPA recognized that the industry was not on track to meet these mandates. So, in January of 2012, the EPA moved ahead deadlines by decreasing the overall allowable production levels of R22 by an additional 45%. Hence, the cost of refrigerant is now nearly double of what it once was.

At Precision Air we are not only in the business of serving our Customers but also leading the way within our industry. So, here is what WE are advising to be proactive with this situation.

As a homeowner you have two options:

Option 1 is to attempt to maintain your existing system as long as you can without dangerous leaks. You can accomplish this with regular annual maintenance of your unit including a complete AC Tune-Up.

Option 2 is to upgrade to new compatible equipment. While Option 2 will be the most recommended solution, it can be misleading. Most contractors will tell you that you need to upgrade to a new higher efficiency (non R22) AC unit. Actually there is a third option that may make sense for some homeowners. There are some newer EPA approved Refrigerants like Dupont’s ICEION MO-99 being manufactured that will run in older R22 units. The cost of this refrigerant will be high and the performance could be substandard compared to the old R22 refrigerant. Please be advised that most of these replacement refrigerants including MO-99, may not yet be approved by manufacturers, and if mixed with your current systems R-22, it might and quite possibly will void your manufacturer warranty.

If upgrading to a new unit is recommended, the good news is that many of these newer units actually cost less to purchase plus use significantly less energy than the older R22 systems.

So when you’re ready to consider repair or replacement of your old R22 AC unit, call Precision Air and Plumbing. All our technicians are NATE certified, the highest Certification available in the industry. Only NATE certified technicians will be able to provide the most accurate diagnosis for your situation.

Maintenance FAQs

Yes. Professional maintenance goes beyond what a typical homeowner is equipped to deal with, including things like checking your refrigerant level and cleaning the evaporator coil. Having a professional examine your air conditioner once or twice a year will also help catch problems while they’re still small and manageable.

The number of people and pets living in your home and how frequently you run the air conditioning will affect how often you need to change your filter, but everyone should check their filters monthly. When the filters are discolored or plugged, they need to be replaced; this is typically 30 to 90 days after installation. During more frequent use (ie Summer) you may need to clean or replace filters every 2 weeks.

Regularly clean vegetation, leaves and debris out of your air conditioner and hose it down well with the unit turned off. By keeping the outdoor unit clean, you’ll maximize its ability to exhaust heat into the environment, making it run more efficiently.

If you notice your air conditioner has bent fins on the outside unit, purchase a fin comb designed for air conditioners and gently straighten them. Make sure the unit is off before you attempt this simple procedure.

Repair FAQs

Air conditioners that suddenly start making new noises or produce new smells should be checked right away. Other signs that your unit is having problems include it running constantly despite temperatures under 100 degrees Fahrenheit, or blowing warm air into the room, or utility bills that increase dramatically despite normal usage.

Before you call us, check that the furnace filter isn’t clogged and that the air conditioner is on and set to a temperature that will cause it to cycle. Check if the thermostat is operational, it may be possible that the batteries are simply bad. If you know where the disconnects are located, check those as well, and note if anything smells, looks, or sounds unusual.

The temperature that your air conditioner blows at will depend on the temperature of the air entering the return. Typically, room air should blow out at a temperature between 15 and 20 degrees cooler than when it went in, but if there’s excess humidity in the air, this range may vary slightly. Allow your unit to run at least 15 minutes before you compare the return air temperature to the blowing air temperature.

Air conditioners are closed systems, meaning that refrigerant should never escape from the system. Therefore, regular charges are unnecessary. The only time you’ll need to charge your air conditioner is if there is a leak present. If you do have a leak, have a professional fix it right away.

Indoor air handlers do double duty, removing heat and moisture from the air in one go. They are designed with a small pan to catch the moisture, but occasionally the drain line from the pan may become plugged. If you see water around your indoor air handler, remove the drain line and give it a good cleaning by running bleach or vinegar water through it to help clear out build-up.

Usually, an air conditioner that has frozen is suffering from restricted air flow. Turn the unit off as soon as you notice a problem and check the filter. If it’s pristine, you may have accidentally blocked the air return or have a refrigerant leak. Check your vents before you call a professional out to hunt down a leak.

Replacement FAQs

Once your air conditioner has passed its seventh year, it’s likely that any major repair is going to be more expensive than replacing the unit. An older unit that’s showing signs of trouble and needs frequent visits from the repairman, that cools poorly, or suddenly creates much higher energy bills than in years past is probably ready to be replaced.

You can sometimes simply replace your outdoor unit and leave the indoor unit intact, but a mismatched system like this may cost you a lot more in energy use by reducing the efficiency of your new outdoor unit dramatically. Plus a new system may not run the same type of freon that your old system was using, thus not allowing you to keep one half of your system. You’re always better off replacing all the parts of your air conditioner at the same time for maximum efficiency and performance.

Absolutely. An air conditioner that’s just 10 years old may be as much as 60 percent less efficient than a brand new baseline unit. Today’s energy efficient models do a lot more cooling with a lot less electricity, keeping operating costs low.

No. Bigger isn’t always better. Don’t be tempted to up-size your unit unless your old unit was incorrectly sized to begin with. A too-large unit will run in frequent short cycles, preventing it from removing humidity properly from your home and shortening its lifespan.

What Our Customers Are Saying About Us

Marc Rezzonico

Precision Air & Plumbing is ALL-PRO in my book. They have been our Go-To HVAC Team for many years now.

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4.5 Star Rating

With 1000+ reviews

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4.6 Star Rating

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Andrew Burkhart

Precision Air and Plumbing is a wonderful company to work with! They are very experienced and professional. They have helped us in our home for many years via a/c service and air duct cleaning.

Kingsley Evans

Precision Air is a company of integrity. I signed up with them August 1st, 2019 for their AC maintenance plan for 2 years... Someone from their office called me a week ago to set up their yearly maintenance visit. SO GRATEFUL.

Jeff Stanczak 

He did a great job; professional and knowledgeable! Kalin is the technician’s name and Precision Air and Plumbing should take a bow for hiring such an invaluable employee!!!

We’re Here to Protect Your Comfort

How Can We Help You Today?