Category Archives: Air Conditioning

Do It Yourself Air Conditioner Repair Disasters (Kids, Don’t Try This at Home!)

A Phoenix father was recently overheard sharing some advice on life with his teenage son. “Treat others as you would want to be treated, find something you love to do and do it, and always choose your friends wisely. Most importantly, in Arizona, take care of your air conditioner, and it will take care of you! Find yourself a great air conditioner repair service and stick with them. Don’t mess around with an inexperienced alternative. In the desert, air conditioning is an essential fact of life. Trying to save money on air conditioning service will end up costing you more in the long run, son!”

Do It Yourself Repairs – The Pride of Home Ownership

For most homeowners, do-it-yourself projects can be both challenging and fun. Minor plumbing repair, such as fixing a leaky faucet or replacing the flapper valve in the toilet can be very satisfying. Painting the kitchen a wild new color can add pizazz to your home décor. However, there’s one area of do-it-yourself projects that should be (for the most part) left to professionals – air conditioning repair. It’s OK to replace air conditioning filters. In fact, that’s a home repair people should do more often. But beyond the basics, it’s best to know one’s limitations when it comes to air conditioners.

Why Are Air Conditioning Repairs Best Handled by Professionals?

If you are painting your living room, and you drip some paint on the floor, you simply wipe it up and move on. No harm done. However, if you are attempting to repair your air conditioner and you take it apart without fully understanding the ramifications of what you’re doing, you may get yourself into a situation you regret. In the hot weather months, you do not want to accidentally remove the wrong part, touch the wrong wire or forget a crucial step in reassembly. We’ve had many calls from customers who have gotten in over their heads with their do-it-yourself air conditioner repairs. Here are just a few reasons why do-it-yourself jobs should be limited to changing air filters and sweeping debris from the area around your HVAC unit.

  • Electrical Issues Can Be Dangerous – Air conditioners are complex, multifaceted appliances and loaded with electronic parts, motors and wiring using high voltage electricity. Trouble shooting circuit boards, capacitors and electrical issues can present unique challenges requiring professional training and years of experience. Unless you are an experienced electrician, you should not attempt to fix electrical problems on your own. Touching the wrong (exposed) wire can be a shocking experience. Don’t learn this lesson the hard way.
  • Overfilling Refrigerant – Air conditioners require highly specific tools and gauges in order to be repaired properly. A common DIY error has to do with replacing refrigerant. Many times, individuals without the proper equipment, will end up overfilling the refrigerant which then causes further problems for your AC unit. Refrigerant is a dangerous substance that requires special handling.
  • Motors, Fans and Capacitors – Many air conditioners are located on the roof. Managing large, heavy motors or electrical parts up on the roof can be tricky to say the least. Just carrying them up the ladder can be a challenge. Faulty capacitors are another common AC repair. When capacitors burn out they can contain hazardous materials. Mishandling broken and exposed capacitors can put you at risk of injury.
  • Safety First – Our message to our employees and to all our customers is always SAFETY FIRST. There are so many different elements and moving parts within your HVAC system, it is truly too complicated for most do-it-yourselfers. Please take our advice and let experienced professionals work on your air conditioner. We’ve had decades of training and experience. Let us put our know-how to work for you. Call us today.

Air Conditioner Challenges: Hidden Sources of Heat Inside Your Home

Summers in Phoenix are like a marathon race where they keep extending the finish line. Long time Arizona residents will tell you that sizzling summer temperatures used to subside in mid-to-late September. However, the National Weather Service confirms more 100 degree plus days in October than ever before. This means keeping your air conditioner in top shape and running smoothly through September and October. At this point in late summer, your air conditioner has been toiling for five long months. Here are handy tips on hidden sources of heat and problem areas in your home that may be impacting the efficiency of your air conditioner.

Appliances – The Heat Is on in Your Kitchen

Your oven, stove, toaster and dishwasher all generate heat while in use. Even your refrigerator, which cools by utilizing the same principles as your air conditioner, blows warm air into your kitchen. The more you cook, the more you need a good kitchen exhaust fan. However, the best approach to lowering the heat index in the kitchen is to crank up the outdoor grill and do some late summer barbecuing. Love to bake? Make cookies and cakes at night, not in the afternoon. Running the dishwasher? Why not set the timer to do those dishes after midnight? These might sound like insignificant work arounds, but over the course of a long summer, these little adjustments will add up to big savings.

An Hour in the Shower?

Some people love long, hot showers. The heat produced by taking a 20-minute hot shower is substantial and raises the temperature and humidity in your bathroom significantly. Once again, an efficient bathroom exhaust fan will help expel the heat and humidity, making it easier on your air conditioner to return the temperature in your bathroom to the correct setting. Bathing at night, when the overall outdoor temperature is much lower will mean less energy consumed, and you’ll be a cleaner sleeper, too.

Is Your Attic a Serious Heat Zone?

In Arizona, it is common for air conditioning units to be installed on the roof. During the summer, temperatures can approach 140 degrees up top, and your attic can be a stifling heat zone affecting your air conditioner in more ways than one. If your attic has not been adequately insulated, then the heat from the roof will penetrate into your home. As well, with AC roof units, the vents run through the attic and if the vents are not insulated, the cool air will be heated by the hot air in the attic. Also, if the vents have leaks, cool air will escape, and efficiency will be lowered at the source.

It All Adds Up

Over the course of the summer, utility bills really add up. Adjusting your lifestyle and eliminating the hidden sources of heat in your home will lower your monthly electric bill. The professionals at Ellsworth Home Services have the solutions you need to make your home as energy efficient as possible.

Frozen Air Conditioner? What You Should Do

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A common problem during the humid monsoon season in Arizona is frost or ice on your air conditioner. Some homeowners assume that since their air conditioner unit is doing a really good job of cranking out cool air, it must get cold and might occasionally freeze over. However, this is not the case. A frozen air conditioner is an indication that your air conditioner is not working properly, and you should turn it off immediately and turn your fan from AUTO to ON.

What Are the Reasons for a Frozen Air Conditioner?

There are generally two reasons for frost or ice on an air conditioner unit – restricted airflow and/or low refrigerant. Probably the most common cause for ice on your air conditioner is low refrigerant due to a leak within the system. Constant wear and tear and relentless vibration can cause fittings to loosen and result in refrigerant leaks. If you notice the air coming from your vents is not as cold as it should be, or you have warm air blowing as well as frost or ice on your unit, very likely your refrigerant is low and needs to be replenished. A second cause for a frozen air conditioner has to do with restricted airflow due to dirty coils. These issues are best handled by an experienced technician with the proper tools to solve the issue.

How Does Refrigerant Affect My AC Unit?

Refrigerant is an essential ingredient to the cooling process. Often referred to as freon, R134, R22 or R410A, refrigerant converts from a gas to a liquid and back again in an endless cycle working with the other components of your AC unit to:

  • Transfer heat from inside your home, which is then blown outside as exhaust
  • Lowers the temperature of the cooling coils
  • Forcing cooled air into your home

If you AC system is low on refrigerant, the temperature will drop on the coils containing the refrigerant. The humidity in the air will freeze. This leads to frost or ice on the coils. As the ice builds up, the unit will need to work harder to maintain the proper temperature in your home. That’s why you should turn off your air conditioner as soon as you notice ice or frost. If this condition goes undetected, it can eventually lead to serious problems for your air conditioning system.

The 3 D’s – Dirt, Dust and Debris

Desert dust storms cause dirt, dust and debris to clog up the filters and coils in your AC system. Inefficient air flow can cause many problems for air conditioners. Dirty air filters can result in increased dust in the air inside your home. If your air conditioning unit has not been professionally cleaned recently, it might be a good idea to have it checked.

Ice Is Nice in Your Iced Tea, Not in Your AC

If you’ve noticed ice on your AC unit, it may be time for a fall service call. We will check your refrigerant for leaks, clean your coils, replace your filters and bring your entire unit up to snuff. We can also check your furnace so you’re ready for the coming winter season. Why not give us a call today?

This Autumn Don’t Fall for a Labor Day Air Conditioning Letup

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In Arizona, winters are ideal, spring is a breeze and summer is… tough. Summer can be a brutal marathon. As August rolls into September, most of the country says goodbye to the heat and hello to cooler temperatures. In the Valley of the Sun, residents know that Labor Day means there’s still two more months of triple digit days ahead. This autumn don’t fall for a Labor Day letup. Celebrate the hardest working appliance you own – your air conditioner – by scheduling a fall checkup.

How Tough Are Summers in Arizona?

Phoenix is considered the hottest city in America. There’s been no shortage of record setting temperatures this summer. On average, according to the National Weather Service, 100 degree plus days normally start in May. However, this year, Phoenix hit 100 plus on April 10th, which was the earliest ever. Summer is getting longer and hotter. At this point in the year, most Phoenix AC units have been running full tilt since the beginning of May. That’s four months of constant use. Imagine driving your car through the desert at high speeds for weeks at a time without a break. It’s going to require service. The intense heat, dust storms, monsoons and general wear and tear may have already taken a toll on your air conditioner. Here are four reasons for a fall service call:

  • Summer Takes Its Toll – One common problem for air conditioners is losing refrigerant due to leaks. It is a silent, invisible issue that most homeowners will never know has occurred. As your air conditioner runs, the constant cycle of starting up and shutting down and operating nonstop for days at a time during heatwaves, causes vibrations that can lead to small fissures or tiny leaks. As refrigerant escapes, your air conditioner needs to work harder to maintain the same temperature. Left unchecked, refrigerant will run low, and the cooling efficiency of your air conditioner will be reduced to the point you will notice warm air coming from your vents. If you haven’t had an AC inspection in the last 10 to 12 months, it’s a good idea to have your system checked by one of our experienced professionals.
  • Monsoons and Heatwaves Can Cause Electrical Issues – Phoenix homeowners know a thing or two about severe thunderstorms in summer. Lightning, high winds, toppled trees, downed power lines and power outages are common during monsoons. The metro power grid experiences power surges and shutdowns during storms and intense heatwaves. Electrical issues can arise from these power fluctuations. Air conditioners and other electrical appliances are particularly vulnerable when the power surges back on. High winds and driving rains can also cause issues for HVAC units. It is not uncommon for tree branches, debris and dust to be blown into HVAC units.
  • Unwelcome Guests and Furry Friends – Until you see it with your own eyes, it’s hard to believe – animals can cause a host of issues for your air conditioning system. Over the years, we’ve found furry friends nesting in units, squirrels chewing on wires ruining electrical connections, and rodents making their way into AC vents. Hornets and wasps often build nests in rooftop AC units, and many other problems can be caused by unwanted visitors. If you are noticing unpleasant odors coming from your AC vents, it is possible you’ve had a furry friend home AC invasion.
  • Slightly Slower Pace in Autumn – Prepare for Winter – Due to population growth and the extensive use of air conditioners, Phoenix is one of the busiest cities for HVAC service companies in the United States. Companies are booked solid from May through October, (including nights and weekends), handling urgent AC related emergency repairs. Autumn moves at a slightly slower pace and permits more time for non-emergency, regular maintenance calls. During a fall service call, our service tech will check your furnace to make sure you are ready for winter. It pays to be prepared for the colder months ahead.

Fall Service – Make the Call

At Ellsworth Home Services, we have highly qualified and experienced professionals who are trained to spot the big problems before they occur. Regular maintenance is the key to maintaining a smooth-running HVAC system. Remember, an efficient air conditioner will help save on your monthly electric bill. Don’t wait for breakdowns to occur. Call us today for a fall checkup.

Happy Labor Day to you and your loved ones!

Midsummer Air Conditioning Checklist – Is Your AC Unit Prepared for the Hottest Days to Come?

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Summer in Phoenix, America’s hottest city seems to last longer each year. That’s not urban myth or exaggeration. The National Oceanic and Atmospheric Administration reports that Phoenix has more 90+ degree days (170+ per year) than any other city in the United States. The average temperatures in August and September will exceed 106 degrees with expected heat waves and record-setting temperatures. As we hit the halfway point through another blistering Arizona summer, it might be a good idea to check on your air conditioner and make sure it is in top working order.

Air Conditioning Warning Signals and Possible Trouble Indicators

Your air conditioning unit may be installed on the roof or located on the side of the house, so it’s easy to overlook. Out of sight, out of mind. But there are many ways your air conditioner communicates with you. You might want to pay attention to these top five warning signs:

  • Dirty air filters and ducts – Do you notice sinus troubles or congestion due to increased dust or allergens in your home? Dirty air filters and ducts can cause serious problems with the air quality inside your home and disrupt the proper operation of your air conditioning unit. Replacing air filters and duct cleaning is easy to forget, but the consequences of not having clean air in your home can be significant.
  • Reduced airflow – Are you experiencing warm air blowing from the vents, or is your air conditioner working harder to maintain the same temperature setting? Sometimes an air conditioner unit’s performance will diminish slowly over time until one day you notice there is no cool air at all.
  • Strange noises – Screeching, thumping, knocking, whirring – your air conditioner can be a regular sound effects machine. However, the sound of a good working AC unit is the sound of silence.
  • Funny smells from your air conditioner vents – This includes musty odors, electrical burning smell (do not ignore – please call to have that checked immediately), and chemical or odd industrial smells which could indicate a leak of some kind.
  • Sharp increase in monthly electrical bills over the same period last year – Homeowners often notice the summer increase in electrical usage in the June-July utility bill. If your electric charges are higher than usual, that could be an indicator that your air conditioner unit is not cooling efficiently.

There’s Plenty of Summer Left

Many homeowners schedule two HVAC service calls per year. A springtime inspection for air conditioning and again in late fall to prepare for the upcoming winter. If you missed your spring opportunity, a midsummer checkup will ensure a cool ride through August and September. Call the pros at Ellsworth Home Services today at 480-593-2265.

Unbalanced Air Conditioner – Why Can’t I Get the Air Conditioning Temperature Right in Certain Rooms?

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As the song goes, Summertime and the living is easy – as long as the air conditioning is cranked up and blowing cold! Air conditioning makes summer in Arizona bearable. Many homeowners call us to say they are happy with their air conditioning, but they have one annoying problem. The temperature is fine throughout most of the house, but it’s much warmer in one room. Maybe you are experiencing a similar issue? Whether it’s the kitchen, your family room or one of the kid’s bedrooms, it can be a frustrating experience.

There is no set rule as to which rooms are harder to cool than others, although south and west facing rooms with large windows will always present a challenge for your air conditioning unit. Heavy blackout curtains or blinds can help to block out the desert sun. As well, kitchens, bathrooms and laundry rooms have extra heat and humidity. Equally-balanced air conditioning depends on many factors, including the general layout of the house, the design and installation of the air conditioning system and vents, and the human factor in your home which includes kids leaving doors or windows open, using ovens, hot showers, and running the washer and dryer in the utility room.

Air Conditioning – A Tricky Balancing Act

As any air conditioning expert will tell you, properly balancing an air conditioner in any structure, be it a house, office or industrial building, requires solid engineering, careful calculations and years of experience. There are multiple challenges to be met, and depending on the size, layout, insulation and age of your home, your room to room air conditioning balance might be in need of some professional attention – especially if your house has been remodeled or you have added rooms. Homes are designed and built with the best intentions, but air conditioning systems and vents don’t always get the attention they deserve. Here are the top three reasons your air conditioning may not be reaching every room in your home equally.

Do Your Ducts Work? – Long Ducts and Uninsulated Ducts Pose Problems

Long stretches of ducts that are exposed to hot air, such as ducts in the attic running to the furthest rooms in the house can be challenging. It’s especially bad if the ducts are not insulated. A thorough inspection of your HVAC system, ducts and vents will reveal any such issues.

Too Large or Too Small – Is Your HVAC System the Right Size for Your House?

There is a myth that buying a larger air conditioning system will cool your house even better (bigger is better, right?) But that is not necessarily the case. If your system is too small, you may not have the tonnage (BTU’s) required to get the job done. The best solution is to have a professional assessment of your home by one of our service technicians.

Home Renovations

During the course of home renovations or room additions, air conditioning is not always a high priority. Adding rooms or square footage changes the balance of air conditioning in your home and should be checked and addressed by an expert. Having a carpenter run an extra vent is not always the best solution.

Why Not Hire the Best?

There are multiple reasons for unbalanced air conditioning throughout a home. If your house has not been professionally checked in the last few years, why not call the pros at Ellsworth Home Services?

Soothsayer or SEER – Does the Future Hold Lower Energy Bills for Your Air Conditioning?

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Can a new air conditioning system actually save you money? Or is that just fuzzy math? What is SEER and why is a SEER rating important? As the hottest part of the summer approaches, many Phoenix area residents’ thoughts turn to air conditioning systems, SEER ratings, AC repairs and skyrocketing monthly energy bills.

SEER Ratings – What Do They Mean?

SEER is the acronym for Seasonal Energy Efficiency Ratio which expresses the effectiveness (efficiency) of a given air conditioner in producing cooling. Greater cooling with less electricity translates into higher efficiency. The proper equation is the amount of cooling BTU’s (British thermal units) divided by watts – or the amount of electricity used. The greater an air conditioner’s efficiency, the higher the SEER rating.

Like MPG (miles per gallon) ratings for automobiles, SEER ratings are overall indicators of the effectiveness of your AC system. The SEER rating was developed by the U.S. Department of Energy to give consumers a basis for comparison between various manufacturers’ HVAC systems. Not surprisingly, many homeowners are unaware of the SEER rating for their home air conditioning unit.

How Old Is Your Air Conditioner?

Phoenix is a hot real estate market experiencing exponential growth. Many people purchase homes in Arizona without focusing too much attention on the HVAC unit. Even though it can be argued the air conditioner is the most important appliance in the house – paperwork listing the manufacturer, invoices, warranties, SEER rating and service history are rarely provided in detail. That’s why it’s a good idea to have a professional technician perform a complete system inspection to establish the age and SEER rating of your AC unit.

Many older Phoenix homes have AC systems with SEER ratings below 10. Current, highly efficient air conditioners can have SEER ratings as high as 20 or above. A minimum SEER rating of 13 is required by law as of 2005. Central air conditioning systems that qualify in the top 25 percent efficiency rating carry the Energy Star label. To qualify for the Energy Star they must have a minimum SEER efficiency level of 14.

How Much Can You Save?

In calculating how much money you will save on gas with a new car, it is understood that the guidelines are not set in stone. If you upgrade from owning a car that gets 15 MPG to a car that gets 30 MPG, you are going to greatly increase your MPG efficiency and see significant savings in your monthly gas expenditure. Simple math tells us you will save approximately 50 percent on your gas.

Likewise, with SEER ratings. If your current air conditioner has a SEER rating of seven, and you upgrade to a unit rated at 14, you could save approximately 50 percent on your monthly energy costs (Disclaimer: a blog post cannot accurately predict all the factors that will go into an individual homeowner’s energy bill and should only be considered a general guideline.)

Is It Time to Purchase a New Air Conditioner with a Higher SEER Rating or Keep Your Old AC System?

As always, the answer is up to the homeowner. However, you might want to consider these points when calculating if it’s time to upgrade. Consulting with an experienced technician will provide facts and make your decision-making process easier. Here are five key questions:

  • How old is your current unit?
  • What is the SEER rating of your unit?
  • What is your average monthly energy bill?
  • How much have you spent on major repairs in the last 3 years?
  • How much will you save each month if you cut your energy bill by 20%, 30% or more?

Some general indicators that it may be time to replace is if you have spent more than $3,000 on repairs in the last few years, if your current unit is more than 10-12 years old or if your monthly energy bills are out of control.

Choose Comfort for You and Your Family

New air conditioners, SEER ratings, calculating energy costs and understanding the differences between AC manufacturers can be very confusing. Let the experienced pros at Ellsworth Home Services shed some light on the best solution for you and your home.

Prepare Your Air Conditioner for Monsoon Storms

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The monsoon season is officially here. This means wind, lightening, rain and plenty of dust. If you’re like most Valley residents, you probably welcome the dramatic weather as it can provide some much-needed relief from the heat. Yet, it has the potential to damage your air conditioner – especially if it has not been routinely maintained.

Electrical Surges

Among the most common and potentially damaging aspects of summer monsoon storms are electrical surges caused by lightening. A single bolt can trip your circuit breaker and damage your unit. This is why it’s a wise idea to have a surge protector installed.

Dirt and Dust

With a single haboob, your air conditioning unit can be blanketed in dirt and dust. Over the course of a summer, this can clog your system’s filter, block airflow and even damage the motor. Take proactive efforts to wipe down your unit after each storm.


Winds often exceed 50 miles per hour during Arizona summer storms. One strong gust can cause backyard items to become airborne and potentially damage your air conditioner. Take this time early in the season to clear vegetation and remove items, like light-weight things such as toys, which can be blown into your unit during a storm.

Schedule a Preventive Maintenance Tune-up

Maintenance is essential for keeping your air conditioner fully operational before, during and after monsoon season. Schedule a routine tune-up and maintenance inspection today so you can learn about any potential issues before they turn into big problems.

Monsoon storms are not something to take lightly. They can be damaging, especially if you’re not prepared. Your air conditioning unit is likely in your backyard or on your roof, making it highly vulnerable to summer storms. Be proactive and schedule a maintenance call today.

Why Does the Air Coming Out of My Air Conditioner Vent Smell Funny?

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At one time, it was commonly believed that humans could discern approximately 10,000 different odors. Molecular biologist Leslie Vosshall, a researcher at Rockefeller University, conducted a study that proved otherwise. Did you know, the human nose can detect at least one trillion odors? The olfactory sense is highly attuned and triggers immediate memory responses. Some fragrances make you smile, and others can make you laugh. However, there’s nothing funny about a bad smell coming from your air conditioning vents. If you’ve been experiencing something out of the ordinary coming from your AC vents, or you find yourself asking what is that funny odor when you step into a room, consider the following possible causes for malodorous scents connected to your air conditioning system.

Musty Dirty Socks Smell

If you’ve ever left your laundry in the washing machine over the weekend (over a week – if you’re a bachelor) you know this smell only too well. The “dirty sock” odor is unpleasant and undeniable. Mildew loves damp, dark, cool places which your air conditioner, drainage lines and pans and ducts can provide. Often, in Arizona, people notice the smell when they first turn on their air conditioners in late spring. It’s important to note, moisture can build up in your HVAC system in any season, for a variety of reasons. The best thing to do is to call in an expert to determine where the moisture is coming from and how it’s affecting your air conditioning system. Moisture can also lead to mold, which can be a serious problem and is not to be taken lightly.

Electrical Burning Odor

When a motor overheats or if there’s an issue with wiring, you may notice an electrical burning smell. This smell will get your attention and requires immediate action on your part. Turn off your air conditioning unit at the circuit breaker and call for service immediately. Do not try to convince yourself that your AC unit just needs to cool down. Electrical problems are serious and can cause extensive damage if ignored.

Animal Infestations

Not often, but occasionally, rodents and other little furry friends find their way into HVAC system ducts. The pitter patter of little feet echoing down the vents in the dead of night can be a clue. However, if you have the misfortune of one of those little fellows expiring within the ducts, you will most assuredly notice a foul odor. This problem will call for a duct system inspection and cleaning.

If Your Air Conditioning System Doesn’t Pass the Smell Test

There are many other “fragrances” that our customers have tried to describe to us over the phone. The best way for us to determine the cause of a foul odor is to inspect your entire HVAC system. Call Ellsworth Home Services today for service, and we’ll do our best to help your house pass the smell test.

Why Does My Air Conditioner Make This Weird Noise – Top 5 AC Noises Explained

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We live most of our lives indoors in an insulated world, protected from the sun, the heat, strong winds and rain. Given the extreme temperatures in Arizona in the summer, being inside in air-conditioned comfort is a good thing. But it might surprise you to you know, the Environmental Protection Agency reports that most Americans spend over 90 percent of their lives indoors. The breakdown is 87 percent in home or office and 7 percent of the time commuting or driving in cars. All this time inside behind insulated windows and closed doors means we often don’t hear the sounds of the outside world. That is, except for those annoying leaf blowers.

The Sounds of Silence – A Healthy Air Conditioner

Are you inside right now? Close your eyes and listen. Hear anything? A little white noise or possibly the quiet whirring of your AC fan outside? Essentially, when your air conditioner is working properly, you should be hearing little or no noise at all. Silence is the sound of a healthy air conditioner. For most people, out of sight – and out of earshot – is definitely out of mind. Most air conditioners are built to last and with regular service, can run problem free for years. People rarely think about their air conditioning unit until it starts making odd sounds.

Clunks, Clatter and Racket

In the air conditioning industry, we receive many calls from customers who go to great lengths to imitate the “weird noise” their air conditioner is making. Some of the voice impressions are downright hilarious! In case you’re not so talented at making air conditioner sounds, we’ve compiled a list of the most common noises made by ailing air conditioners and what all that racket generally indicates.

High Pitched Squeal

This is a sound you may also associate with faulty automobiles fan belts. An ear piercing, high-pitched squeal or squeaking generally indicates a problem with belts slipping or an issue with the bearings.
Clanking, Ka-chunk or Loud Rattling during Start-up
These noises are sometimes caused by loose mounts, but more often than not, can indicate a problem with the compressor. This is not a sound you want to ignore.

Tick-tick or Clicking Sounds

A rhythmic tick-tick or clicking sound is often caused by an obstruction of one sort or another hitting a fan blade. An obvious question is, “How can something hit the fan blade when it’s in an enclosed area?” There are a variety of reasons. One of the most obvious is high winds during monsoons or thunderstorms can blow branches and debris into your unit. Clicking sounds can also be caused by defective relay switches.

Buzzing or A Loud Hum

As with any electrical device or motor, if you happen to hear a buzz or notice loud humming coming from your air conditioning unit, you’ll want to turn it off right away. If you hear crackling or detect a burning smell, you’ll want to act immediately. Turn off the AC unit at the circuit breaker and call for service. Electrical problems can be very serious.

Wind Whistling Sound Near Vents Inside the House

If you hear wind whistling, whooshing or the faint sound of a distant train coming from your vents, you can rest assured, it is not an errant Amtrak whistle or a ghost train calling to you from the other side, but rather a pretty decent hint that there’s a loss of pressure or an opening somewhere in your duct work.

The sounds listed above (and others you may have heard) are strong indicators that your air conditioning unit needs service. Why not let the pros at Ellsworth Home Services perform a complete inspection of your HVAC unit to guarantee a quiet, cool summer for yourself and your family?