Category Archives: HVAC Maintenance

Signs Your HVAC Compressor is Failing

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A primary component of your HVAC system, which helps keep your home comfy throughout the year, is the compressor. Think of it as the beating heart of both heat pumps and air conditioners. When the compressor goes bad in a heat pump or AC system, it can derail the entire system from operating properly. In other words, it’s a good idea to know the signs of a failing compressor.

Ticking or Chattering

Before the core of your HVAC system fails, it can make an unusual ticking or chattering noise during startup. This noise occurs because the compressor is running into difficulties starting. Don’t ignore this sound. The ticking can be from a defective relay switch. This is when you want to seek out professional guidance from your local trained technicians.

Rattling or Rumbling

Hearing an unmistakably loud rattling or rumbling noise when the compressor is running? There may be a loose distributor motor, or a component inside the compressor housing may be thrashing about. When you hear either of these sounds, turn off your HVAC system entirely and reach out to your HVAC service technicians to resolve the issue to prevent further damage.

Too Hot or Too Cold

Depending on the time of the year, if your home’s interior is freezing cold or stifling hot, it may mean your compressor has already failed. If you’ve tried turning up or turning down the thermostat, and the compressor doesn’t kick in, don’t try to fix it yourself. Call for service, instead.

Tripping Repeatedly

Definite warning signs of compressor trouble are when the HVAC system keeps tripping the electrical circuit breaker or the circuit breaker in the box has failed to turn on after being flipped. The reason this may be happening is from the compressor overheating and trying to use too much electricity. Don’t continually reset the circuit switch as it may cause a latent fire hazard. Hot electrical equipment is never a good sign. It’s also not a time for DIY.

Call Cool Blew

When a compressor fails, you’ll need professional repairs. Call your HVAC technicians at Cool Blew any time of the day or night for help. Call us today at 623-872-2900 for your plumbing, heating, air conditioning, and electrical servicing issues.

Happy Holidays to You and Your Loved Ones

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As we get ready to celebrate Christmas and bid farewell to 2021, our family at Cool Blew wishes you and your loved ones the merriest holiday and the very best in the new year ahead. We thank all of our loyal customers for another year. As your preferred local Arizona experts in HVAC and plumbing repairs and installation, here are a few things to keep in mind during the holidays:

Reduce Holiday Plumbing Stress

The holiday season means additional guests and extra stress on your plumbing. During this time of the year, you want to make certain your pipes and drains are prepared to properly function.

  • Clear any clogs in sinks, showers, and toilets before guests arrive and make sure all toilets are flushing.
  • Make certain to have toilet plungers on hand in all the bathrooms.
  • Be careful of what you and your guests put down the garbage disposal by placing a garbage can nearby.

Be Electrical Safe

  • Be sure to keep an eye out for these potential holiday electrical hazards.
  • Check your Christmas tree, whether freshly cut or artificial, to make sure it is at least three feet from any heating source like fireplaces, space heaters, and vents.
  • Don’t overload your home’s electrical circuits by running all your festive holiday lights and decorations, both inside and outside your home, at the same time.
  • Remember to always turn off holiday lights before you go to bed or leave your house.
  • Test your smoke detectors and carbon monoxide (CO) alarms to make sure they’re working correctly.

Be Proactive, Not Reactive for HVAC Servicing

And remember, winter is an ideal time for HVAC service. By scheduling maintenance in January, February, or early March now, you’ll have the confidence of knowing that your HVAC system will be running smoothly when spring arrives. Unfortunately, many people wait for their HVAC unit to break down before they call for service. We refer to that as reactive service. Better to be proactive and get out ahead of potential HVAC issues. Our talented service professionals are trained at diagnosing and repairing small problems before they become major ones.

Call Cool Blew

Call us any time of the day or night at 623-872-2900 for any servicing issues that may pop up during the holidays. Merry Christmas and Happy New Year from our family to yours!

Don’t Let These Household Issues Spoil Your Thanksgiving

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Thanksgiving is a favorite holiday for enjoying a delicious, home cooked meal with family and friends. But one of the busiest cooking days of the year can become a stressful situation where you’re in immediate need of an electrician, plumber, or HVAC professional. One bad decision can lead to a backed-up kitchen sink, garbage disposal not grinding, clogged toilet, broken heater, or an electrical emergency. These are just some of the common issues that may happen on the day you least want problems! Let’s help prepare you to avoid these Thanksgiving disasters.

No Heat

Thanksgiving family and friends have arrived. Suddenly, the heat stops working on a chilly late afternoon. Make certain the air filter has been replaced if it’s dirty, that the thermostat is set to “heat.” Next, check the electrical breaker box to make sure the circuit breaker for the heater hasn’t been tripped. Still not working? Give Cool Blew a call.

Electrical Outlets Overloaded

Family and guests may be charging their phones, the stove and oven are both on, the dishwasher is running, and you turn on the Cuisinart mixer to mash potatoes. Suddenly, the mixer stops working. Most likely, the culprit is a tripped GFCI outlet in the kitchen shutting power off to the mixer. Simply press the red reset button and the mixer will be ready to go. A blown fuse is another possibility. Can’t figure it out? Call Cool Blew.

Garbage Disposal Clogged or Kitchen Sink Backed Up

Your Thanksgiving dinner usually requires at least the entire day to prepare dishes for the feast. Sometimes during food prep and doing the dishes, food scraps that should have been thrown in the garbage can end up in the sink and down the garbage disposal. Fatty liquids like turkey gravy, potato peels, and leftover food off plates can turn the sink and disposal into a trash can.

Often, these items cannot be easily ground up by the garbage disposal blades, causing the disposal to stop working. Liquid and food may backup into the sink creating a real mess. To prevent this from happening, position a garbage bag or garbage can in an area near the sink where everyone can quickly scrape food off their plate. If something like a turkey bone has ended up stuck in the garbage disposal jamming the blades, the quickest fix is to insert a hex (Allen) wrench in the bottom of the disposal. Or, give Cool Blew a call.

Toilet Overflowing

Depending on the number of guests for your holiday meal, the toilet can be flushed four to six times the normal usage. All that flushing and toilet paper used can cause the toilet to clog and potentially overflow. Make certain that a trash can is placed nearby so guests don’t toss anything that shouldn’t be flushed down the toilet. About 90% of the time, the quickest DIY fix is to use the handy toilet plunger to unclog it. If that doesn’t work, you can count on Cool Blew.

Call Cool Blew

If you do find yourself dealing with a drain or toilet that won’t unclog, a heater not blowing out warm air or an electrical outage, call your Valley of the Sun professionals for the fast, reliable service you deserve, any day of the year, at any time, even on the Thanksgiving holiday. Call Cool Blew at 623-872-2900 for servicing and repairs.

Common HVAC Issues in Phoenix

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Daily temperatures in the Valley of the Sun during the summer are usually either hot, very hot, or extremely hot. Too often, air conditioning systems develop problems during the season which must be dealt with quickly and professionally. No homeowner wants to be without their HVAC unit in the summer, so let’s explore two of the most common problems affecting HVAC systems and how to deal with them.

Thermostat-related Problems

Air conditioning systems are built to operate automatically with minimal maintenance. The thermostat’s main role is switching the HVAC system between heating and cooling. When the thermostat is faulty, it can lead to overheating or excessively cool rooms.

Any type of thermostat is subject to dust, dirt, and grime problems. And Arizona homes are notorious for dust, no matter how well they are sealed or how frequently they are cleaned. It’s important to note that the buildup of dust around the contact points can cause problems even with smart thermostats.

As well, with some newer HVAC thermostats, when the power goes out to your home, there may be issues with certain types of thermostat memory chips losing their programmable settings. Frequent adjustment, low batteries, or dead batteries on thermostats that use them, and mechanical damage from impact also can be responsible for issues associated with malfunctioning thermostats. Make sure to have extra AA or AAA batteries on hand in case of battery malfunctions.

Coolant Problems

The cooling system in air conditioners works on the same engineering principle as refrigerators. On older HVAC units, coolant runs through the evaporator and condenser, absorbing and carrying away heat to the outside. If this coolant leaks, cooling will not take place, and your home will get hot. A good indicator of coolant problems are abnormal temperature spikes that occur when the temperature outside gets hotter. The air conditioning system may be running but the temperature of the room may not be dropping to the desired level. While this may also indicate a faulty thermostat, the level of the coolant in your air conditioner needs to be checked. This is when you need to call the professionals to inspect your HVAC system.

At Cool Blew, we specialize in HVAC preventative maintenance and repair. Regular maintenance helps improve the efficiency of your cooling system and helps to minimize summer breakdowns and repairs. Valley of the Sun residents can count on Cool Blew to meet your cooling and heating needs year-round. Call us today at 623-872-2900.

10 Common HVAC Issues & How Pros Troubleshoot Them

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It’s important that you reach out to a trustworthy service technician when you come across signs that your AC unit isn’t working as well as it should. To make that happen though, you need to recognize the signs. Here are common HVAC issues—and how they look like or what their signs are—to help you. By knowing what to watch out for, you’ll know right away if you need to reach out to an HVAC service technician as soon as possible.

Clogged Filters

This is a common HVAC problem. Signs include compromised airflow. If there are hot and cold spots in your room or stuffy air, that’s a sign that you have clogged air filters. You’ll need to replace the filter to fix this issue. However, it’s easy enough to do. Have pros do this every two to three months on average. You can do this yourself but if you aren’t sure what to do, it’s better to hire pros of an HVAC repair company in Peoria to do the job.

Obstructed Condenser Unit

The condenser unit is typically located outside your home. However, being outside means it could get crowded around the unit. If there plants around the condenser, then that could cause the unit to get overheated. Is the unit always hot to the touch? Is it smoking? Don’t let it worsen. Before those things even happen, clear out the clutter around the unit.

Outdated HVAC Design

When you renovate your home, it’s smart to upgrade your HVAC unit too. An outdated HVAC system won’t be able to handle the needs of your home. If your unit isn’t cooling the room as well as before, or it doesn’t get as cold as before, then it’s time to replace that with a new one.

Slow Fan

Blower fans should work efficiently. If yours is slow and sluggish, that could be due to the grime and dirt that’s accumulated on the fan. This can also be one of the reasons why you’ve got poor airflow. Have a pro clean the fan to restore its smooth, efficient operation.

Low Refrigerant Levels

If your AC is leaking, that’s usually a refrigerant problem. Signs of this are compromised airflow and reduced cooling comfort. If this isn’t fixed right away, it could lead to the unit’s gradual decline in performance.

Related Read: Why You Shouldn’t Tackle Do-It-Yourself HVAC Maintenance

Blocked Vents and Registers

These are other common problems that HVAC owners find themselves dealing with sooner or later. One way to fix this is to check if you’ve misplaced rugs or furniture. Check if anything is blocking your vents or registers and then remove them.

Wrong Size

Big isn’t always better. You need a unit that’s just the right size for your property or rooms. Anything that’s too small won’t be able to provide the level of cooling comfort that you want. On the other hand, if you pick an oversized unit, it might often cycle on and off and might not remove the humidity in your space. The result is that you’ll end up feeling like your room is even stuffier or more uncomfortable than before. Pick a unit that’s properly sized.

Leaky and Blocked Ducts

Are your ducts leaky? Are they blocked? That’s another common problem that you’ll want to look into. Dust and dirt build up over time. That’s why you need to hire pros to check the condition of your ducts. If the airflow is impeded, then that means there’s a blockage that needs to be removed. It’s easy enough to get your ducts cleaned. Also, some ducts might have cracks or holes. That will affect the airflow of your unit as well. A professional service technician, though, will know what to do to repair the damage. Don’t try to DIY by putting duct tape on the cracks or holes, since it doesn’t really work well and is only a temporary measure. Stop-gap measures won’t help you in the long run. You’ll need to hire a professional to deal with the problem. Also, old ducts require a light touch. That’s another reason why you’ll need pros with expertise and the proper tools to make sure the ductwork isn’t damaged any further.

Related Read: Why Should I Purchase An HVAC Service Agreement?

Dirty Coils

Dirt on the coils can lead to airflow issues. That’s why it’s best that you check the coil for dirt since dirt and dust build up over time. If there’s too much dirt and dust, the coil won’t be able to release the heat effectively and that’s why the air’s cooling comfort is compromised. If you don’t want that to happen, then clean those coils regularly. Hiring a pro to take care of this is convenient, though, as you can ask the technician to take care of all the other issues that need to undergo troubleshooting. To make it easier, you might want to come up with a list of the issues that you think your unit has. That should give the technician a bit of a guide on where to get started.

Eco-Friendly Home Tips to Make the Most of Earth Day 2021

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April 22nd will mark 51 years of Earth Day celebrations. It’s a wonderful opportunity to take small steps toward changing your consumption habits. The ability to positively impact the environment around your home through simple fixes can mutually benefit your family, neighborhood, and ultimately our world. Let’s look at some ways to get involved besides classic Earth Day activities like picking up trash and tree planting campaigns. Here are eight eco-friendly home tips to save energy and natural resources.

Fix Leaky Faucets

A slow drip from one leaky home faucet can waste 7-10 gallons of water every day. That’s over 3,600 gallons a year, increasing your water bill by over 10% each month. That’s more than 60 showers annually! In other words, learn how to stop the drip and call in the experts, like Cool Blew, to ensure the water is only flowing when you want it to.

Turn the Faucet Off

What’s the best way to save up to eight gallons of water a day? Shut off the sink faucet when brushing your teeth! You can also conserve water while washing your hands. Turn off the tap when scrubbing your hands with soap before washing for 20 seconds.

Clean Refrigerator Coils

The condenser coils on the back of your refrigerator should be cleaned every six months by dusting or vacuuming. Keeping your freezer and refrigerator full helps to retain cold air better, utilizing less energy. Inspect and clean gaskets periodically to help your refrigerator operate more efficiently.

Vary Cooking Times

By cooking early in the morning or at night, you’ll reduce energy consumption especially if you’ve signed up for off-peak hours energy plans with your local utility company. When using your oven, turn it off 15 minutes before the timer is up. Your food will continue to heat up.

Turn on Ceiling Fans

According to, when using air conditioning, a ceiling fan will allow you to raise the thermostat setting about 4 degrees Fahrenheit with no reduction in comfort.

Install a Smart Thermostat

Did you know you can save up to 8% on home cooling costs for every degree set above 78 degrees? By replacing your thermostat with a smart thermostat, you can earn even more energy savings with an environmentally friendly system which pays for itself.

Wash Laundry in Cold Water

Your washing machine uses almost 90% of its energy-related consumption towards heating the water. Choose the energy saving setting for your clothes. Hot water also can fade, shrink, or wrinkle certain fabrics. So stick to the cold.

Turn Dishwasher Heat Dry Off

One of the easiest ways to save about 15% of your dishwasher’s energy usage is to turn off the heat dry function. The air-drying cycle will dry your dishes and save money. If your dishwasher doesn’t have this function, simply crack open the door to let dishes dry once the load has finished washing.

It makes good sense for Earth Day to implement these simple, cost-effective, home lifestyle changes. It’s more important than ever to be environmentally friendly, and every tiny bit helps to save planet Earth.
Not everyone wants to take a DIY approach for Earth Day 2021. We get it! That’s why Cool Blew offers a team of licensed professionals to help you. Call the experts at Cool Blew today at 623-872-2900.

HVAC Strategies to Prevent Hay Fever

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Hay fever season is here for an estimated 40 to 60 million Americans. If you’re one of the unlucky sufferers of this common condition, you’re probably already suffering from sneezing, sniffling, and itchy, watery eyes. Luckily, spring HVAC maintenance can remove many of the allergens that can cause symptoms of hay fever. Proper maintenance can remove pesky allergens like dust mites, mold, and pollen, helping you avoid irritating allergic symptoms. In fact, these common home contaminants found in your indoor air can be easily controlled.

Use high quality air filters

You know air filters are your first line of defense against poor air quality in your home. MERV is the filter industry standard. Filters with higher MERV ratings offer increased filtration. Look for MERV ratings of at least 8, with 20 being the highest rating. This will go a long way toward reducing indoor allergens. Replace air filters every month for best results. Dirty air filters not only will contribute to seasonal allergy symptoms, they also decrease HVAC system efficiency.

Clean the outdoor unit

The outdoor HVAC unit pulls in air circulating throughout your home. Airborne particles make the air in your home harder to breathe. Check for dust, dirt, and debris and clear it away from the unit frequently to keep allergens from being pulled into the system and entering inside.

Dust house vents

Even if you make it a habit to dust weekly you may forget to dust air return vents. Dust mites are the most common hay fever trigger, so cleaning your air ducts will get rid of dust mites and help reduce allergy and breathing symptoms. Cool air transported through air ducts can also lead to condensation and mold which is a major irritant for many allergy sufferers. Dust lingering in home vents and registers will blow throughout your home, so clean them on a regular basis. Use a damp or treated cleaning cloth to keep from kicking up dust particles and worsening your allergy symptoms.

Schedule an annual maintenance appointment

Spring allergy season is a great time to schedule HVAC maintenance.. Servicing by an HVAC professional will help reduce indoor allergens and ensure your system is healthy, and your air filtration system is dust and blockage free.

Cool Blew offers expert maintenance services, which can improve the efficiency of your HVAC system. Call Cool Blew today at 623-872-2900.

Why You Shouldn’t Tackle Do-It-Yourself HVAC Maintenance

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You enjoy being handy around the house, making common household repairs with a wrench or screwdriver. We get it! Saving yourself a great deal of money and honing your handyman skills is rewarding. However, HVAC maintenance and repairs simply shouldn’t be something to add to your list of do-it-yourself projects.

The following are just a few of the many reasons why it’s wise to only let a skilled, experienced HVAC technician maintain and repair your system:

1. HVAC Systems Need Professional Tools

HVAC systems need to be periodically serviced, repaired, and carefully calibrated with equipment and tools designed specifically for HVAC specialists. Everyday tools are not only impractical when it comes to fixing your HVAC system, they can be risky.

2. Safety Threats

HVAC systems require knowledgeable and experienced technicians who are trained to minimize the risks of working with flammable, pressurized gas, high electrical voltage and environmentally toxic combustion fumes that have the potential of causing injury or even death.

3. Decreased HVAC System Capacity

Do-it-yourself repairs and system tune ups have a high likelihood of decreasing the operating life and efficiency of your system. Without professional training, you can make mistakes with the system that could prove to be difficult to resolve in the future. And there’s always the chance that you can unknowingly turn a minor problem into something major, which can lead to expensive repairs down the road.

4. Voided HVAC Warranty

Replacing parts on your HVAC unit with generic parts or performing any do-it-yourself maintenance will likely result in a voided warranty. You must work with an HVAC trained and licensed professional as all repairs and maintenance usually require documentation by the HVAC manufacturer. In other words, to maintain your warranty, don’t do the job yourself.

Call Cool Blew Instead

We know that it can be appealing to attempt a DIY project like HVAC maintenance. But, stop before you start. For expert HVAC maintenance that will keep both your warranty protected and give you peace of mind, call Cool Blew instead at 623-872-2900.

A trained professional can detect HVAC issues before they cause bigger system problems. The benefits of using a trained HVAC professional will far exceed the potential damage you may incur by doing DIY servicing and cleaning of your system.

Schedule Your Spring HVAC Maintenance

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Spring is rapidly approaching with temperatures climbing, and flowers already in bloom. As you prepare for the seasonal shift, don’t forget HVAC maintenance.

The optimal time to schedule air conditioning maintenance is now. Damage or stress placed on your system over the past months can be addressed with some springtime attention. Air conditioning maintenance includes a professional inspection, tune up, and cleaning by a trained Cool Blew technician. We highly recommend scheduling bi-annual HVAC system tune ups—one in the fall for heating, and one in the spring for your air conditioner.

Why Is Spring the Right Time for HVAC Service?

Triple-digit temperatures will be here soon, requiring you to flip the switch on your air conditioner. It’s no surprise that late spring and summer are peak times for HVAC repairs, placing HVAC technicians in high demand.

When you schedule a professional tune up prior to when the peak temperatures hit, you’ll be guaranteed a convenient appointment. You’ll also gain the peace of mind knowing that your system is ready to keep you cool all summer long. Post-winter repairs can also be handled proactively.

Why put off HVAC maintenance for when we’re in the midst of a scorching heat wave? Be prepared by taking the preventive route. Schedule professional maintenance now, and you’ll be glad that you did this summer.

Springtime Maintenance Checklist

During maintenance service, one of our technicians will perform a tune up and cleaning that includes:

  • Air filter – Clean or replace if needed
  • Bearings – Inspect for wear and lubricate
  • Blower motor – Measure amperage and voltage
  • Capacitors – Inspect and test
  • Compressor – Monitor, measure amperage and volt draw, and wiring connections
  • Condensate drain – Flush and treat with anti-algae
  • Condenser coil – Clean and remove debris
  • Contactors – test and inspect for burned or pitted contacts
  • Duct work – inspect for energy loss
  • Electrical disconnect box – Inspect for proper rating and safe installation
  • Electrical wiring – Inspect and tighten connections and inspect for exposed wiring
  • Fan blade – Inspect
  • Indoor coil – Inspect
  • Refrigerant – Monitor operating pressures
  • Safety devices – Inspect for proper operation
  • Service valves – Inspect for proper operation
  • Thermostat – Test for proper operation, calibrate, and level

Residential Preventive Maintenance

Don’t forget to ask about our residential preventive maintenance agreements. You can gain valuable benefits, including priority service, discounts on repairs, no overtime fees, and more.

Call today to schedule your spring maintenance with Cool Blew at 623-872-2900.

HVAC Filters Explained

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With hay fever season approaching rapidly, it’s a great time to showcase one of the most integral components of your HVAC system—the air filter. HVAC filters help keep your home clean and healthy. But there is more than one option when it comes to choosing a filter. Here are the types of air filters to choose from and a few details to help you make the right choice for your household.


These are the most common and most affordable option. Fiberglass air filters are effective in helping to keep your system efficient, but they’re not the best choice for removing dust and pollutants from your indoor air. If you’re prone to allergies or other respiratory problems, you may want to consider a higher-grade filter.


Fabricated from polyester or cotton folds, pleated air filters are more effective at filtering particulates than those made from fiberglass. Filtering performance of pleated filters is determined by the number of pleats. The more pleats, the greater the performance. Both fiberglass and pleated filters should be swapped out at least once a quarter. Here in the desert, it’s a good idea to get on a regular monthly schedule of changing your air filter.


Although more expensive than disposable fiberglass or pleated filters, washable filters can save you in the long run. They can be easily cleaned, so you don’t need to replace them. It’s important to clean them according to the recommended schedule determined by the manufacturer. You’ll want to ensure the filter is completely dry before using it to prevent mold and bacteria growth.


Electrostatic air filters attract dust and airborne particulates through electrostatic charge, preventing them from being blown through your home. These filters come in both washable and one-use models.


High efficiency particulate air (HEPA) filters are a good choice for homeowners with allergies and respiratory conditions. They have been proven to be effective in screening up to 99.97% of contaminants. The US Department of Energy recommends this type of filter in homes and businesses.


Using ultraviolet light to kill bacteria and viruses, UV filters have become more popular since the start of COVID-19. However, it’s important to note that these filters are better at killing microorganisms than screening dust and other pollutants. This is why some recommend using a UV filter in conjunction with a standard air filter.

Cool Blew – Your HVAC Experts

Have questions about HVAC filters? Call Cool Blew today. We’re here with the answers and the service you need to ensure your home is comfortable 24/7/365.