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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.
John's Refrigeration is now hiring qualified Air Conditioner technicians in Gilbert AZ.
Call Us Today!
Call John's Refrigeration today for AC repair service in Chandler AZ
Call for reliable AC replacement in Mesa AZ.
Call John's Refrigeration today for Air Conditioner repair service in Gilbert AZ
John's Refrigeration is in your  community with our Gives Back program
We are donating $1000 to the organization that gets the most votes! Vote Now
You can vote once per day!

Blog Index 3

Blog Index 3

John’s Refrigeration Blog

Indoor Air Quality Products Halt Winter Sickness

December 14th, 2015

With winter weather comes winter colds, and our dry conditions here in Mesa, AZ only make matters worse. When humidity levels drop, our sinuses dry out, leading to increased vulnerability to sickness and germs. This can be compounded by the increased socialization during the holidays—with things like Christmas parties and friends and family coming in from out of town—which can spread colds and flu bugs like a wildfire throughout your household. Continue Reading

How long should my heat pump run?

December 9th, 2015


Winter is officially here! The shorter days and longer nights mean our heat pump is probably getting as much use as it did during the summer, especially with the current cold spell we’ve been experiencing in Mesa, AZ. A lot of our customers frequently ask us, “How long should my heat pump run?”

The run time is determined by two things: (1) the set point and (2) the type of thermostat that you have in your home.

The set point

In the summer months, the unit will typically run more and when we have extreme temperatures, it may not even cycle off. We usually size our units to keep the temperature at 75° when it’s 108° outside. As long as the set point remains in place, the unit should operate efficiently.

The type of thermostat

Older thermostats used a temperature gap of 2°, which meant if the thermostat was set to 76°, it would turn on at 78° and off at 74°. The newer thermostats use just a .5° gap and tend to cycle more often than the older models.

If you are traveling this winter, we advise you to keep your heat pump on while you are away. Many homeowners are surprised to learn that you don’t save on utility bills when powering off the system, as the heat pump will need to work twice as hard when you turn it back on. This can be more costly and cause a strain on your HVAC unit. Instead, we recommend a set point of between 3 and 5 degrees higher than normal when you are heading out of town.

If you are also thinking about replacing your thermostat, consider looking into a Wi-Fi enabled option. This will maximize the amount of control you have on your heating system and it’s a cost effective way to save on energy while ensuring your home is at a comfortable, controlled temperature.

If you are unsure about the efficiency of your heat pump, give John’s Refrigeration a call. We’d be happy to answer your questions.

Why Your Heat Pump Won’t Switch Over

December 7th, 2015

Heat pumps make a lot of sense in Mesa, AZ: able to provide reliable air conditioning in the summer, then switching over to heating mode on those few occasions when the weather starts to get chilly. It saves money and makes the ability to heat your home a lot easier than using an entirely separate system. But what happens when your heat pump won’t switch over from cooling to heating mode? We get calls like that a lot this time of year, when temperatures start to dip, and if you spot the problem, we can be there in a flash to fix it. Here are a few possible reasons why your heat pump won’t switch over. Continue Reading

How to protect your home while traveling this winter

December 2nd, 2015

If you are traveling during the winter months, it is vital that you conduct a “safety audit” on your property. Winterizing your home in this way will ensure your home is protected from the elements and any unwanted guests, including burglars and bugs!

Start with maintenance

The temperature in Mesa, AZ in the winter can average lows of 40°, making it essential to tune-up your heating systembefore traveling out of town. If you haven’t had a maintenance checkup on your heating system for some time, you should seriously think about scheduling one. Regular maintenance checks not only extend the life span of the heating system, but also increase its efficiency, while reducing the likelihood for repairs. While we don’t typically get a lot of rain in metro Phoenix, that is predicted to change this winter with El Niño.

To prevent a buildup of twigs, leaves, and dust blocking the vents in your outdoor A/C unit, we recommend that you keep this area clear of windblown debris. This stops unwanted pests from using these areas as breeding grounds. It may seem crazy to think about winterizing your home in Mesa, AZ, but following these tips will save you headache and money.

Shut off the water mains

Whether you are traveling for an extended period of time or just for a long-weekend, turn off the main water shut-off valve. We also recommend that you drain the water lines after you shut the valve off. If you are having difficulty locating the main shut off valve, the water company in your city may be willing to come by and shut it off at the meter. It’s worth checking to see if the local utility company provides this service, as water damage can be catastrophic.

Secure your property

Don’t give unwanted guests a reason to visit when you’re out of town. You can easily deter burglars from your property by following a few simple tips. Either stop your mail for the duration of your time away or have a neighbor check your mailbox daily to keep overflow from occurring. If you have various access points to your property, such as the gates in your backyard, purchase heavy duty locks for these entryways. Install a motion detector light at the main and rear entrances of your property. For added security, you may want to consider investing in a home security system service, where you pay a monthly subscription fee.

Home automation is becoming more and more popular, and there are a number of devices that are Wi-Fi enabled that can turn your house into a “smart” home, which makes it even easier when winterizing your home. John’s is currently working to bring our customers the best in home automation products, includingWi-Fi enabled thermostats. Stay tuned for more details on these products in 2016.

If you are interested in learning more about our maintenance program, we’d be happy to discuss its many features. In order to make sure your home is fully protected while traveling this winter, carry out these simple steps for winterizing your home for added security and peace of mind.

Why Is My Furnace Short Cycling?

November 30th, 2015

Cool weather has come to Mesa, AZ, and while that is a relative term out here, we still need our heaters to keep us warm during those chilly desert nights. That means you need to pay close attention to your system and act promptly when any problems arise. Otherwise, it could leave you without any heating just when you require it the most. Among the most common and problematic issues with your furnace is short cycling, where it turns off and on rapidly multiple times throughout the day, often without adequately heating your home. Why is your furnace short cycling and what can be done about it? Read on for the answers. Continue Reading

How to Replace a Thermostat: What to Ask Before You Buy

November 24th, 2015

The thermostat is one of the most important elements of your home heating and air conditioning system. Before you rush out to replace or upgrade your thermostat here’s what you need to know prior to buying:

Thermostat options

Deciding on the best thermostat option for your home involves a number of factors, such as your energy goals and budget. Here is a list of the types of thermostats available and found in most homes:


Digital thermostats are typically installed in newer homes, instead of the older manual thermostats. The digital thermostat has an easy-to-read digital display with large buttons that allow exact temperature control.


Just as the name suggests, programmable thermostats allow you to program and set specific times for the air or heat to turn on and off.

Wi-Fi Enabled

If you are energy conscious and want the maximum amount of control from your thermostat, then a Wi-Fi enabled option is best for you. These products are often part of a bigger home automation system or allow you the option to buy related products from the line and link them together through an app that can be controlled from a smartphone or tablet. Wi-Fi thermostats are great for the business traveler or if you own a rental property. It’s simple to access the app and easily turn off the heat or air no matter where you are.

The Benefits of Home Automation

Home automation is the way of the future for homeowners. The benefits of home automation are far-reaching. Apart from saving you money, which is often the number one factor for the homeowner,automation offers peace of mind and convenience. Having the ability to adjust the temperature in your home for optimum comfort is a nice luxury also. We are currently working to bring our customers the latest and greatest in home automation. Stay tuned for more updates in 2016.

How to Replace Your Thermostat

Once you’ve decided on the best thermostat replacement for your home, we can help with the installation. We offer a full lineup of thermostat services and have a team of certified employees in Mesa, Gilbert, and Chandler, AZ.

If you are a D.I.Y. aficionado and are willing to roll up your sleeves to install yourself, here are instructions on how to replace a thermostat:

  1. Turn off power to your heating system
  2. Remove the cover from your old thermostat
  3. Take a picture of the wire positioning
  4. Disconnect the wires from the old thermostat
  5. Remove the mount from the old thermostat
  6. Install the new mount and connect the wires
  7. Screw the mount into the wall tightly
  8. Attach the new cover
  9. Turn on the power to your system
  10. Configure

When installing a new system, always remember safety first.

To learn more about our services, call John’s. Access to greater control and safe-guarding your home is the end goal in thermostat replacement and home automation. We’re excited to work with you and make your home as safe and comfortable as possible.

Beware of Formicary Corrosion

November 23rd, 2015

Heaters and air conditioning systems have become more effective and efficient as time goes on, which has become a great boon out here in Mesa, AZ. But that often creates new challenges and even new dangers which can cause your system no end of trouble. Among them is the recent rise in formicary corrosion, which strikes at the copper tubing in your heating and air conditioning system, and is responsible for trouble like refrigerant leaks and even the full-bore failure of the tubing. A good technician can correct the problems caused by formicary corrosion and help your indoor air quality to boot. Let’s take a look at how it all works. Continue Reading

Heat Pump vs Furnace: What’s the Difference?

November 18th, 2015


In many cases, the decision to install a heat pump or a furnace is largely dependent on whether your house uses natural gas or electricity to heat the home. Although there are a variety of furnace models on the market that offer electric, gas, and propane options. Don’t just huddle under a blanket, stay warm with a heat pump or a furnace.

The furnace is one of the most common heating systems found in homes throughout the U.S. because of its reliability, efficiency, and durability. While the East Valley gets its share of cool days and nights during the winter months when the furnace will be operating, much of the country experiences a more seasonal climate. When it comes to deciding to install a furnace in your home, a number of factors come into play, including local utilities; is your neighborhood within the parameters of a gas line/service area? Other factors include the actual building structure of your home and how it’s configured. It’s important to know the differences and what each system offers so you can ask the right questions in order to help with a smooth installation.

At John’s, our technicians are certified and able to answer your questions every step of the way. We’ll make the initial calculations to help find the right size furnace to effectively heat your home. Once we have established what model to install in your home, we will begin the process. Then, 60 days after an installation is complete, we return for an inspection, as promised in our guarantee.

Heat pumps do an excellent job in more temperate climates, as they provide both heating and cooling in one convenient systemHeat pumps are one of the most efficient HVAC systems on the market, making them an attractive option to many homeowners looking to reduce energy usage and costs. A heat pump uses electricity to heat and cool your home and they are typically found in many homes in Arizona.

Installing or replacing a heat pump in your home is not a small decision. You will live with it for many years, so you want to be certain that it provides an efficient way to heat and cool your home. One of the most common causes of heat pump issues is poor installation. There are many different components involved to ensure the system runs like clockwork. At John’s, we go the extra mile and take a whole-house approach to make sure your heat pump operates efficiently with the ductwork and structure of your home.

It is our responsibility to provide 100 percent customer satisfaction and we proudly carry an A+ rating from the Better Business Bureau, so you know you’re in good hands when you call on John’s. We also offer a money-back guarantee on new installations and replacements. If you aren’t happy with the performance of the system we installed – or the service within the first year – you can call us to remove the unit free of charge.

If you still have questions about the differences of both the furnace and heat pump, contact John’s; we’re here 25 hours a day, 8 days a week and are happy to address any of your heating concerns.

Simple Signs of Heating Trouble

November 16th, 2015

As our heaters see more and more use in the latter part of the year, Mesa, AZ residents need to keep a careful eye out for signs of trouble. Heating problems have a way of sneaking up on you, and something that’s easy to fix now may cost you a pretty penny if you let it wait for a few weeks. A good maintenance session from a trained professional can help you spot signs of heating trouble, but you yourself can keep an eye on your heater as well, and call in a professional as soon as you detect anything out of the ordinary. What does “out of the ordinary” mean? We’ve provided a quick list below. Continue Reading

Tips to Winterproof Your Home | Heating Repair in Gilbert, AZ

November 10th, 2015


Investing time and effort now to winterproof your home will not only save you major headaches later, it will keep your costs down during the chillier months. You can keep the cool air out and warm air in and have your home operating more efficiently by implementing a few winterproofing steps. To prepare your home for the change of seasons, follow these top tips:

  1. Add Insulation

This can be as simple as adding some plastic coating to your windows. You’ll be able to pick up a window insulation kit at your local D.I.Y. store for just a few dollars and once installed correctly, you won’t even notice it’s on the windows. This acts as a buffer against draftsAccording to the U.S. Department of Energy, drafts can waste 5-30 percent of your energy use. It can also make a big difference to add some more insulation in your attic area and insulate your pipes, which means you’ll pay less for hot water.

  1. Tune-up your Heating System

A heating system is much like a car, as it needs regular maintenance checks to make sure it’s performing at its best. Keep your system clean by changing out the filter on a regular basis. This will also help you reduce heating costs. If you suspect that your system is clogged, call John’s; we specialize in heating repair in Gilbert, AZ and throughout the metro Phoenix area.

  1. Run Ceiling Fans in Reverse

Most Arizonans think a fan’s job is to help cool you down, when in fact, it has a dual function. A nifty trick is to run your fan in a clockwise direction in the winter. This simple click of a button can help cut heating costs by as much as 10 percent.

  1. Invest in a Programmable Thermostat

Thermostats are one of the most essential components of your entire HVAC system. They control not only when the system is turned on, but also the temperature in your home. Many of the modern thermostatscan be connected to our electronic devices and can be controlled via apps to ensure peace of mind. The majority of households fork out 50-70 percent of their energy budgets on the cooling and heating of the home. It doesn’t make sense to pay for heat when you have left your house for the day. If you are interested in discussing zone control with John’s, we can talk to you on this topic. We can help you control the temperature in the different zones of your home independently, as we specialize in zone control system installation services.

Call John’s today if you are interested in scheduling a comprehensive energy audit of your home or if your heating system is in need of a checkup. With 45 years of experience serving many of the communities in the Valley, we can help ensure that your home is ready in time for the winter months.

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 Dr, Ste 2
Mesa, AZ 85210
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Phone: 480-649-1000
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