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Call for reliable AC replacement in Mesa AZ.
For AC repair in Mesa AZ, like us on Facebook!
For AC repair in Gilbert AZ, visit us on Google!
To schedule your Air Conditioner installation in Chandler AZ, just email us!
see what your neighbors say about the AC repair or installation we performed near Mesa AZ on Pinterest!
For AC repair in Gilbert AZ, follow us on Twitter!
For Ductless AC repleacement in Mesa AZ, watch our videos on YouTube.
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Call John's Refrigeration today for AC repair service in Chandler AZ
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Blog Index 26

Blog Index 26

John’s Refrigeration Blog

Whole-House Humidifier System

November 20th, 2013

How many times have we all heard “It’s a dry heat” during our scorching summers? The Arizona desert is well known for its lack of humidity, except during the monsoon. Humidity refers to the amount of water vapor in the air and warm air holds more water vapor than cold air.


Low humidity causes static electricity, dry skin and hair, itching, and chapping of the skin. Mucous membranes in the nose and throat dry out, making you more susceptible to colds and respiratory illnesses. Using a cool mist humidifier in the bedroom where you sleep or in the living room while your family watches TV can safely add moisture to a single room. These portable devices need to be cleaned and refilled often, though.

Since there are issues with both exceedingly dry air and air that is too humid, a whole-house, humidification system, where you can control and maintain the proper levels of relative humidity, may be the answer. With a whole-house humidification system from John’s Refrigeration, you will be able to maintain ideal levels of humidity all year long.

When the air in your home holds the correct levels of humidity, there’s no need to set your thermostat higher for the desired level of comfort, which saves you money on your utility bills and contributes to energy efficiency. In fact, you can expect to save 5% or more on your annual utility bill and also add to your family’s indoor comfort while helping to prevent and control problems with dry, itchy skin, asthma, allergies, colds, and other respiratory issues. Your family will be healthier once the air inside your home is healthier.

This system will not only help you control and maintain your indoor air quality, but will also help keep your family healthier and breathing easier. Call John’s and let us help you breathe easier, all year long.

How an Air Conditioner Works

November 19th, 2013

Most people understand that their air conditioning systems use a fan to blow cold air throughout their home but few people understand how they’re able to remove heat from your home. Having a basic understanding of the air conditioning process is a great way to be able to identify problems and know when you need to call for repair. John’s Refrigeration offers a full range of Mesa, AZ air conditioning services and we wanted to share a little about how an air conditioner works.

Mesa, AZ Air Conditioning Tip: How AC Works

Take a look below to learn a little bit about how your air conditioning system removes heat from your home.

Compressed Refrigerant

Think of a can of compressed air that you use to clean your computer. When you squeeze the trigger air blasts out and the outside of the can gets cold. This happens because that remaining air inside the can has to expand and fill the space left by the exiting air. The expansion of that air requires energy so it pulls in all the heat energy it can from the area around it thus making the outside of the can feel cold.

The Split System

If you have a central air conditioning system then you likely have an indoor unit and an outdoor unit which is why the system is often referred to as “split”. The outdoor unit contains a fan, a set of condensing coils and a compressor. The inside unit contains another fan and the evaporator coils.

The Refrigeration Process

So here’s how all the pieces fit together. The compressor in the outdoor unit compresses the refrigerant and then circulates it inside to the evaporator coils where the pressure is released causing the coils to get very cold. A fan in the indoor unit pulls in warm air from your home and passes it over the evaporator coils where the refrigerant absorbs heat and cools the air. The now-hot refrigerant then continues outside where it enters the other set of coils in the outdoor unit and its heat is exhausted by the other fan. The process is then repeated.

If you’ve noticed any type of problem with your air conditioning system or if you need to have a new one installed call the Mesa, AZ air conditioning service experts at John’s Refrigeration.

Peak Performance Evaluation Home Energy Audit

November 13th, 2013

John’s Refrigeration Heating and Cooling takes a holistic, whole house approach toward optimizing how your home, duct system, A/C system, and insulation work together. We offer a Peak Performance Home Evaluation–a home energy audit–which assesses the whole house as a system, not just the A/C unit and ductwork. This energy audit is designed to provide you with the best solutions to lower utility bills and improve your home environment, including temperature comfort, indoor air quality, and safety.


After John’s has conducted this test on your home, you will have specific recommendations for improving your central air conditioning system efficiency. Ensuring that you have the right size system will help you to enjoy reduced energy bills. We’ll also make sure you have the proper insulation, effective air flow, and no leaks in your ducts – or anywhere else – that could allow cool or warm air to escape into the spaces in your home that don’t need it.

We perform a Duct Efficiency Test where we compare air in vs. air out.  This tells us whether there is duct leakage, how much air the HVAC unit is delivering, and if your home has the proper duct size. We also test the leakage rate of your duct work. If more than 20% of the air moving through the system is leaking into spaces you do not want heated or cooled, we’ll seal them. Then we insulate your ducts to protect them from excessive heat and cold. John’s is authorized by both SRP and APS for duct testing and repair, which means that our customers may quality for rebates which will save you even more money.

The Peak Performance Home Evaluation home energy audit will also tell us where we can install dampers to make sure some rooms aren’t warmer or cooler than others. By optimizing the air flow throughout your air conditioning system with these actions, you are likely to see lower utility bills and be more comfortable in your home.

We’re confident you’ll choose John’s for the best in year-round indoor comfort.

Energy Saving Air Conditioning Tips

November 11th, 2013

We all need to run our air conditioning systems a lot here to stay comfortable. But with energy prices seemingly on the rise all the time, what can homeowners do to make sure that their AC is running as efficiently as possible? John’s Refrigeration is a family owned business and we’ve been offeringprofessional air conditioning service in Mesa, AZ, including repair, installation and maintenance services since 1970. We wanted to offer some of tips to our customers to help them reduce their energy usage and increase their home’s efficiency. Call us today to talk with one of our NATE-certified specialists about any services that you might need.

Mesa, AZ Air Conditioning Tip: How to Save Energy

These are a few of the things that you can do to increase the energy efficiency of your home and reduce your energy usage.

  • Regular maintenance – Your air conditioning system likely comprises a large portion of your home’s energy bill. If it isn’t regularly maintained then it will develop small problems that cause it to have to work harder to cool your home. But when you get it regularly inspected, cleaned, repair and tuned up, then you know that it will be operating at peak performance.
  • Energy audit – A great way to find out where your home is losing energy is with a home energy audit. This involves a visit from our technicians as well as a whole-home inspection. We’ll then offer a plan of action to address any areas of inefficiency and energy loss.
  • Insulation – One of the most important components of your home’s energy efficiency is the insulation—particularly in your attic. As the sun beats down on your attic it will heat up. That heat can leak into your home if the insulation in your attic is thin, old or rotting.

When you need any Mesa, AZ air conditioning repair, installation, maintenance or replacement just call the experts at John’s Refrigeration. We would love to talk with you about we can work together to increase your home’s efficiency and reduce your energy usage.

Programmable Thermostats

November 5th, 2013

Most people choose a programmable thermostat over a traditional thermostat to help manage energy costs. These devices save money by helping to cool or heat the home when rates are off-peak or when no one is home. Now there are thermostats that can even be accessed through an app, which means you can manage the temperature of your home right from your cell phone or tablet!


A programmable thermostat is designed to adjust the temperature in your home according to a series of programmed settings that take effect at different times of the day. For example, during the summer, this device may be set to allow the temperature in the house to rise during the workday when no one is home. It may then be set to turn on the air conditioning before you get home, allowing the house to be cool upon your arrival. The reduced cooling required during the day also means you’re saving energy during the peak outdoor temperatures and money when energy costs are highest. According to the Department of Energy, “You can save as much as 10% a year on heating and cooling by simply turning your thermostat back 3-5°F for 8 hours a day from its normal setting.”

During the winter, the programmable thermostat may be set to a cooler temperature while the house is unoccupied during the day and at night after everyone has gone to bed. Just as in the summer with the cooling of the house, the programmable thermostat can be set to raise the temperature prior to your coming home in the evening or waking up in the morning.

The pre-programmed settings that come with this type of thermostat are intended to deliver energy and utility savings without sacrificing comfort. Depending on your family’s schedule, you can notice significant savings in a short period of time by merely adjusting those settings appropriately for your lifestyle. Think of a programmable thermostat as the energy command center of your home; it’s like the brain that tells your HVAC unit how and when to pump air through its ducts.

Using a programmable thermostat in your home is one of the easiest and least expensive ways you can save energy and money. The key to saving is in establishing appropriate settings that automatically reduce heating and cooling in your home when you don’t need as much. Maximize the efficiency of your heating and cooling system by installing this money saving device or allow John’s Refrigeration to install one for you. If John’s installs a programmable thermostat for you, we will program it for you based on your schedule.

Common Air Conditioning problems

November 4th, 2013

When you run your air conditioning system as much as we do here in Arizona it can develop several common problems. Here a John’s Refrigeration we offer a full range of air conditioning repair services in Mesa, AZ for many different types of cooling systems. We’ve been in business since 1970 and we wanted to share some of the most common problems that we see. Give us a call today and one of our NATE-certified air conditioning technicians will be able to help you with any services that you need.

Air Conditioner Repair Tips: Common Issues

Here are a few o of the most common problems that homeowners face when it comes to their air conditioning systems.

  • Not enough cooling – We often get calls from homeowners who say that their AC is blowing warm air or that their home isn’t getting cool enough. This could be caused by low refrigerant in the system, a broken compressor, a bad fan motor or a clogged air filter.
  • Noises – When your air conditioning system starts to make strange noises it’s time to call for Mesa, AZ air conditioning repair services. Your AC has a number of moving parts and if they break down they will start to make noise. Squealing usually indicates that the fan motor belt is bad. Hissing often is a sign of a refrigerant leak and gurgling can mean that you have low refrigerant.
  • Clogged air filter – Probably the most common cause of air conditioning repair is a clogged air filter. If your AC’s air filter gets clogged with dust and dirty it will restrict the flow of air through the system. This could lead to insufficient cooling, increased repair, decreased efficiency and much more.
  • AC won’t turn on – If you air conditioner won’t turn on then you have a big problem. But sometimes this could be something simple like the AC has become unplugged. But it often is more serious than this. It might be that the motors’ capacitors are bad, that the motors themselves are broken or that the thermostats in your home need replacing.

When you need professional air conditioning repair service in Mesa, AZ, make sure that you call John’s Refrigeration.

Join John’s Refrigeration for the LCPS Golf Tournament

October 29th, 2013

We are pleased to announce that John’s Refrigeration is the title sponsor of the Learning Center Public Schools (LCPS) Golf Tournament. The event will take place November 2, 2013 at the Ocotillo Golf Resort in Chandler, AZ. Prizes will be awarded for 1st and 2nd Place Foursome, Longest drive Contest for men and women, Longest Putt, Closest to the Pin for men and women, Shankopotomus Award along with various raffle prizes.

The golf tournament benefits the Learning Center Public Schools (LCPS), a public charter school district that includes the San Tan Learning Center and Fulton Ranch Learning Center. Proceeds from the event will go to support the LCPS Growing Brilliance Campaign, an opportunity for the Gilbert area community to become involved and invest in the success of these local public charter schools. The schools are 501(c)3 organizations and all or part of your donation at the event is tax-deductible.

Register on the official event website. Cost is $87.50 per player or $350 per foursome. 

3 Tips to Size and Seal Your Duct System Properly

October 22nd, 2013

(Also Called: Getting Your Ducts in a Row)

Size matters

Improperly designed HVAC systems may have ducts that are too small for the amount of air they need to carry. If we think of the house like a human body, having ducts that are too small causes high blood pressure. Make sure you hire a company that will check the sizing and examine every square inch for leaks, blockages, as well as poor design. Improperly using air filters – either dirty filters or using a filter that constricts the flow of air – is equally important.

So, not only is the size of the ductwork important, but making sure the air is flowing through it is just as essential to the overall health of the house. The whole idea of size is to make sure that the blood pressure is low so that adequate air flow can be achieved. Air flow is the key to efficiency and size of the equipment. After all, if the house can’t breathe, then it can’t work and will have a heart attack.

Air flow and fresh air

A certain amount of fresh air is needed for good indoor air quality, and there are specifications that set the minimum amount of fresh air needed for a house. An honest, experienced contractor will be able to test your home to measure not only the amount of airflow, but how much fresh air is needed, thereby ensuring an efficient air conditioning and heating system.

If a duct system is poorly designed or installed, your home will waste energy no matter how well insulated it might be, so don’t think simply heaping on more insulation will solve the problem. A certified technician will measure ducts and vents and look for problems. Fix or replace damaged ductwork before adding insulation so that air stays where it belongs: moving through the ductwork on its way to individual room.

Hole-y ductwork

In typical houses, about 20 percent of the air that moves through the duct system is lost due to leaks, holes, and poorly connected ducts. Some ductwork becomes kinked or crushed, especially if work around the ducts has been done, like what happens during home repairs or renovations. Moving the ducts frequently or too roughly can cause them to break or tear, causing leaks. If air is escaping through these breaks, then your attic or crawl space is being cooled instead of your house. Think of these tears in your ductwork as holes in your pockets where money continues to fall through. Repair the leaks and keep your money where it belongs: in your pocket.

And just because duct tape is a similar color and has the word “duct” in it, don’t think it can be used to repair the tears in your ductwork. Duct tape does not stand up over time when used in this application and will eventually become dry and brittle. Mastic sealant or metal tape is made for sealing tears in ductwork, so it’ll stand up to the conditions of the heated or cooled air flowing through the ducts, as well as the areas where the ducts are, like an attic or crawl space.

Asthma, Allergies, & Indoor Air Quality: Natural Allergy Remedies

October 18th, 2013

Allergy and asthma control begins where we spend 90% of our time: at home. Controlling the air quality in your home can naturally reduce allergy and asthma symptoms and decrease the triggers that cause flare-ups. Your home is the perfect place to start for natural allergy remedies.

Allergies don’t only cause sneezing and runny noses; they are also a main trigger for asthma attacks. You could have a chronic problem breathing well (easily, deeply) or coming down with respiratory issues. And it’s possible to develop asthma and allergies as an adult, even if you never had either as a child.


Although everyone is affected by it, people with asthma are more sensitive and experience the effects of poor indoor air quality more quickly and more severely. Pollutants increase the chance of upper respiratory infections and cause adults to miss work, children to miss school, and often require multiple visits to doctors’ offices and sometimes even the emergency room. The U.S. Environmental Protection Agency (EPA) states that asthma “is the leading chronic illness of children in the United States and the leading cause of school absenteeism due to chronic illness.”

The American Lung Association recommends source control as the first line of defense against indoor air pollution. Increasing the circulation of outdoor air into the home and reducing the humidity as much as possible helps because fresh air can also reduce the levels of indoor air pollutants. By reducing humidity, dust mite and mold growth decreases. Air conditioners help reduce the humidity and also prevent the exposure of outdoor allergens, as long as the units are routinely serviced and running correctly.

Most health risks associated with poor indoor air quality can be minimized with proper system maintenance. A clean and efficient HVAC system is an essential tool for natural allergy remedies to have in your family’s health tool box. John’s Refrigeration Heating and Cooling is authorized by both SRP and APS for duct testing and repair. We test your duct system to identify areas where the contaminants are getting into your home and will recommend actions you can take to keep your indoor air as safe as possible. We also sell and can install reusable electrostatic air filters, which attract and hold onto airborne particles like a magnet. The particles are only released when the filters are cleaned. This way, those particles stay in the filter instead of making their way into your lungs.

At John’s, we are your indoor comfort specialists and can address any issues with the air inside your home; making it easier to breathe easier.

“Breathe Easy: How to Make Your Home Healthier” eBook Now Available!!

October 18th, 2013

Did you know the air in your home could be more polluted than the air outside?

Since 1970, our team at John’s Refrigeration has been helping families create and sustain clean, healthy air in their homes. We want you to not only be comfortable in your home, but to understand how your home breathes and what that means to your health, both physical and financial.

We are pleased to announce the release of our first e-book called “Breathe Easy: How to make Your Home Healthier”.

The health of your home is about more than making sure it is cool or warm. It’s about how that system is installed. The health of your home is about creating energy efficiency, saving you money and decreasing your carbon footprint. That is our promise to you and why we created this book.


Click here to sign up and download this free 16-page e-book today and learn:

  • Simple ways to make your home healthier
  • How to select an HVAC installer
  • Ways to save money on utility bills
  • Why a Low Level Carbon Monoxide Monitor is important to your family’s health
  • More ways to create a healthy home and how John’s Refrigeration can help you

Every person who signs up for the eBook before October 31, 2013 will be entered to win one free 21-point home inspection. Act now to Breathe Easy!

It is our job to understand your home as if it were our own. We want your home to be safe and energy efficient. Our team of technicians is trained to provide a red carpet customer experience to all our valued customers. We guarantee 100% satisfaction or your money back.

24 Hour Emergency Service • Call Us Today • (480) 648-2400 • or • Fill Out Our Online Form
We service most AC brands and models near Mesa AZ.
Business Address:
211 E. 10th Drive, Ste. 2
Mesa, AZ 85210
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Company Phone:
Phone: 480-649-1000
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