HVAC Troubleshooting: What is Causing My AC’s Loud Buzzing Noise?

Why Is My AC Buzzing? Loud AC buzzing noise from an AC unit indicates stress on a HVAC system, specifically an electric issue.  It is important that you do not become familiar with the noise, and instead turn off your AC unit and call a licensed HVAC contractor. It is also important to distinguish the noise from rattling or grinding, as those sounds are a typically signs of malfunctioning parts, debris or misalignment.

Electrical

AC Buzzing noises are usually from electrical arcing – a discharge when electricity is jumping between circuitry. Loud buzzing noises indicate the electrical voltage flowing through your air conditioner is not at its correct amperage. Failing electrical components increases the risk of fire and should be diagnosed by a licensed HVAC expert to keep you and your home safe.

Motor

The motor needs to be lubricated with oil, especially in older AC units, to keep bearings from getting worn and eventually malfunctioning. A bent blade on the fan could also cause a buzzing noise. Lubricating the motor or replacing fan blades should be done before extensive use of AC (at the beginning of summer for example) to prevent a malfunctioning system later on.

Refrigerant

If a buzzing or hissing noise is coming from the AC unit itself, it could be a sign of a refrigerant leak. Refrigerant leaks cause AC units often freeze up, even during the hottest time of year when the AC is consistently on. Water dripping onto the motor will cause also an abnormal noise; the repair would involve locating the obstruction/leak and properly isolating the unit.

Parts

AC Buzzing NoisesThis is associated more with a rattling noise, but misalignment or loose screws/panels could also create a ‘buzzing’ noise. Poor installation or aged AC parts cause screws to become loose, also causing the panels on the cabinet to unfasten.

At Action Air Conditioning, Heating & Solar we care about your comfort and savings. We guarantee convenient and efficient service for all maintenance and repair calls. Did you know 90% of all HVAC breakdowns are caused by lack of maintenance?  Don’t put your comfort on hold, Call or Schedule Your Maintenance or Repair Appointment Today!

 

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How to Compare Local Air Conditioning Companies?

Having a functional HVAC system is very important, especially during the hot summer months in San Diego. This means having your unit or units checked regularly and maintained accordingly. Choose only the best HVAC service provider to do the job so you can rest assured everything is in order. How to Compare Local Air Conditioning Companies? We have the answers.

If you are looking for the best air conditioning repair San Diego has to offer, there are some important things you need to consider. When searching through the local air conditioning companies, try to think about the following points before making the final decision.

Continue reading “How to Compare Local Air Conditioning Companies?”

How Often Should I Service My Air Conditioner?

Air conditioner is one of the essential modern time amenities. However, it is also one of the things which don’t cross our minds until it’s already a scorching summer and we need protection from the heat. Before you need to call for an air conditioning service San Diego to service your broken or malfunctioning unit, ask yourself – how often should I service my air conditioner?

Depending on how old your AC unit is and whether there are any problems, there are suggested periods of time in which it should be serviced. This is required in order to avoid any larger subsequent issues and for it to be fully operational during the summer season.

The importance of an air conditioner service

Having your AC unit checked regularly is beneficial in several ways. First and foremost, it enables the proper functioning of the system during peak summer temperatures. By having it checked according to a schedule, you will catch wind of any potential problem before it becomes serious.

As the AC system ages, it loses the original efficiency, which means it requires additional energy to function properly. By regularly servicing it, smaller issues will be served in time to preserve the efficiency and result in potentially smaller electricity bills.

The frequency at which an air conditioner unit should be serviced

“How often should I service my air conditioner?” – this is question we’re asked on a regular basis. There are different parts of an AC system which require servicing at different times, but experts recommend a minimum of a yearly check-up. Such a schedule is necessary for an optimum performance. The aspects which need to be taken care of are filters, coils, coil fins and compressors.

Filters

Even after regular yearly maintenance, there are several things you can do yourself to help the AC system function optimally. To prevent a drop in the energy efficiency, clean the air filters every two weeks. There are different types of filters, and the amount of gathered clogs depends on the usage. Some of them can be cleaned and reused and others need to be changed with new ones. If not cleaned every two weeks, at least once a month is recommended.

Coils

The system consists of two coils which can overheat if excessive dirt accumulates over time. They are the evaporator coil and the condenser coil and they need to be serviced once a year. If this isn’t done, it can bring down the overall efficiency of the AC system.

Coil fins

Coils are covered with aluminum fins, which are very fragile and can break. In order to prevent the coil fins from bending and blocking the airflow, regular service can make them stay in their original shape and out of the way.

Compressors

When a compressor overheats, it can have dangerous consequences. This is another issue which can be prevented with regular maintenance.

How often should I service my air conditioner? We have all the answers

Keeping your air conditioning home system fully operational is the top priority when you hire Action Air Conditioning, Heating & Solar. Our technicians will make sure the service is thorough and comprehensive.

 

HVAC Troubleshooting: Why is My AC Rattling?

When you hear your AC rattling, it is a good indicator that something has gone awry with your HVAC system. Ignoring the issue will create expensive repairs, so make sure you schedule a maintenance, tune up, or repair appointment with a licensed HVAC contractor. There are several situations that could cause a rattling noise – it could be an easy fix such as tightening screws, or it can be an indicator of malfunctioning parts which can become very expensive if gone unrepaired.

Debris

When the filter has not been changed for a while and becomes clogged, dirt, sticks, leaves, gravel and other types of debris can enter the AC cabinet and get knocked around. A dirty AC filter can cause serious damage to the AC’s parts/components along with a variety of other issues, and should be fixed immediately to prevent any more debris from entering.

Panels

Poor installation or aged AC parts can cause screws to become loose, which cause the panels on the cabinet to unfasten. This is common with old HVAC systems, which should be maintained at least twice a year.

Fan

Rattling caused by the fan within the AC unit could be from the blades themselves can becoming loose, especially in older AC models. Luckily, fan blades are easily replaceable. If the fan is misaligned due to debris or age, it will progressively get worse and eventually cause the fan to stop functioning. Dirty blades can also cause noise, so it is important to keep the blades clean and make sure your AC filter is changed regularly.

Motor

The compressor is the ‘heart’ of HVAC system, and when its parts become loose it can cause a total system breakdown. This is more common with older HVAC systems. When the noise increases from the compressor, it is usually a strong sign the compressor’s hardware needs replacing.

Installation

An unstable AC unit is a common source of rattling noise. Improper installation can cause parts to be more susceptible to damage. The noise could be from the damaged parts or by the AC unit or the platform not lining up with a window sill. Re-installation can easily fix the rattling if you notice loose/shifty parts.

Preventative maintenance can fend off unwanted repair bills and inconvenient HVAC malfunctioning during the months you use it the most. Call us today to learn more about our Precision Tune Up Program or to schedule an appointment for repair with one of our NATE-certified technicians!

Avoid a Frozen Air Conditioner This Summer

This may seem like an oxymoron – a frozen air conditioner unit in the midst of summer – but it is actually a very common problem for homeowners. Our team at Action Air Conditioning knows how quickly a frozen AC system can make a nice summer day go awry, so here is all the information you need to prevent, troubleshoot, and repair a frozen air conditioner.

How do I know if my Air Conditioner is frozen?”

The first sign is leaking water around vents or the Air Conditioning unit. Check the registers inside your home while the AC is on. If the vents are blowing out warm air, it could very well be a frozen Air Conditioner. Locate the evaporator coil on your HVAC (typically near the furnace system inside the home) and open the access panel. Small hex-head screws should be holding the panel in place. You will be able to see the ice formed around the coil, or even outside the Air Conditioning unit in severe cases.

What should I do when I notice my Air Conditioner is frozen?”

Turn off your Air Conditioning completely and call a licensed HVAC contractor. This will allow the unit to de-thaw until an HVAC technician comes to the rescue. Don’t try to scrape off the ice by hand as this could cause even more damage to the Air Conditioning unit resulting in an expensive repair. Also check to see if the air filter is dirty as it could be the culprit to your frozen Air Conditioning. Even if the air filter is dirty and replaced, you should still get a licensed HVAC contractor to examine the unit for any other issues that contributed or caused the problem.near the furnace system inside the home) and open the access panel. Small hex-head screws should be holding the panel in place. You will be able to see the ice formed around the coil, or even outside the Air Conditioning unit in severe cases.

What causes a frozen Air Conditioner?

There are two main causes of a frozen Air Conditioner: restricted air flow or a lack of refrigerant. Without proper airflow to the evaporator coil, the condensation will freeze before it gets a chance to be drained from the unit. Restricted air flow could be caused by a dirty air filter, faulty fan, closed registers, or drainage issues. Refrigerant is necessary to prevent the evaporator coil from freezing. If the refrigerant is low, it could be the source of the problem and would require a licensed HVAC technician.

What can I do to prevent my Air Conditioner from freezing?

Performing regular maintenance on your HVAC is the best way to prevent AC malfunction and expensive repairs. We recommend an AC Tune Up twice a year for newer models, or 4 times a year for older HVAC systems.

Keep up with your air filter. A dirty air filter can not only cause a frozen AC, but poor indoor air quality, expensive utility bills, and put unnecessary wear and tear on your HVAC system.

Schedule a Tune Up or AC Repair

Schedule Your Service The experts at Action Air Conditioning & Heating are here to help. Schedule a routine tune-up with our NATE certified technicians and we 100% guarantee efficient, convenient, and professional services. We also offer 24-7 emergency repair services to make sure your every HVAC need is met, anytime. Call, live chat, or message us today!

We Care! Action Air’s 24-7 Emergency Service

Your HVAC system can’t take a break during the season’s most intense temperatures – and neither do we!

At Action Air, we know our customers need a company they can count on, especially during the hot summer months or chilly winters when you rely on your HVAC system the most.

That’s why Action Air’s NATE-certified technicians are on call 24-7 to take care of any HVAC emergency. Our emergency services include immediate repair for furnaces, AC’s, heat pumps, solar devices, and more.

We guarantee convenient, fast, and quality repair at the first service visit.

Your comfort is our priority. That’s why Action Air offers only the best for it’s customers:

  • Available 365 days a year, 24 hours a day, 7 days a week
  • Residential and commercial emergency repair services
  • Guaranteed quality repairs
  • Licensed, NATE-certified, professional, and reliable HVAC technicians
  • Prompt, helpful, and live customer service
  • Quick and efficient maintenance/repair appointment scheduling

How to Prevent HVAC Emergencies

Preventative maintenance is the the best way to protect your home, family, or business from inconvenient HVAC breakdowns. 90% of all HVAC system failures are due to a lack of maintenance. Performing regular maintenance by a certified HVAC contractor will also save you from expensive repairs down the road, keep your home safe and hazard-free, improve your indoor air quality, and save you on energy bills.
Replacing an outdated HVAC system is worth the initial investment. Aging heating and cooling systems have to work harder to keep your home comfortable – resulting in system malfunction and increased energy bills.
Reliable, NATE certified technicians make the difference between quality repairs and improper service. Inexperienced technicians can misdiagnose or perform improper service that will result in more expensive repairs, or even worse, put your HVAC at risk for total system breakdown.

HVAC Troubleshooting: Pooling Water Under Air Conditioning

If you notice a pool of water under your AC, it is a sign that your HVAC needs to be repaired or replaced. There are several things that can cause this common AC issue, so it’s important to call a certified HVAC technician to diagnose and repair the problem. 

Water is naturally created by the AC unit from the process of pulling in the hot/humid air from outside and cooling it through the unit’s cold evaporator coil. Condensation forms and that water is expelled by the drain line into your plumbing, condensation pump, or outside. If there is any issue with the parts that control this process, a pool of water will form under your AC unit. In this case, your AC is not running efficiently and could cause more expensive repairs, premature damage to parts and increased energy bills. Here are a few common causes for pooling water under AC:

  • Condensation pump – When the water is not expelled properly due to a faulty condensation pump, the continual presence of water in an AC unit will create mold and mildew build up and cause the system to clog. This is important to repair in a timely manner to prevent a snowball-effect of other problems because of a clogged unit.
  • Blocked drain hole – If condensation/water is not able to exit the unit due to a clogged drain hole, the water will have nowhere else to go but inside your home or pool around the unit. A clogged drain hole is caused by dirt, insects, debris or mold/mildew build up inside the unit. It could also be from a dirty evaporator coil in which case the dirt will mix with the water and fall down into the drainage pan, clogging the drain hole.
  • Frozen evaporator coil – Low refrigerant causes the coil to become much colder than necessary, in turn freezing it. A dirty air filter will also cause the coil to freeze from the lack of airflow. To defrost the coil, turn your AC off and call a licensed HVAC contractor to correct the problem.
  • Bad sealing – If the seals on your AC unit are not tight, it will cause an excess of air inside. The moisture from that air will build up when the warm air meets the cold air inside the AC unit. A HVAC contractor will need to reseal the outside of the AC to keep it properly isolated.
  • Poor installation – This is common with newly installed AC units. The problem of pooling water happens when condensate trap is not installed correctly, which will prevent the water/condensation from properly draining.

Action Air is dedicated to your home’s comfort and energy savings. If you are experiencing pooling water under your AC, call Action Air to schedule an appointment with one of our Nate-Certified technicians.

Why HVAC Maintenance Is Critical to Your Home & Energy Bills

Did you know that 90% of all HVAC system malfunctions or breakdowns are caused by a lack of maintenance?

The best thing you can do for your heating and cooling system is to have a reliable NATE Certified technician perform regular service on it. Unmaintained gas furnaces, especially older models, are a safety hazard and could be potentially put you, your family, and home at great risk.
An Action Air NATE-Certified technician discovered this entire house was at severe risk for fire and carbon dioxide poisoning after receiving a routine repair call about a furnace not producing heat.
This can potentially happen to you. If you notice anything out of the ordinator about your HVAC system, it is important to immediately call an HVAC contractor, like Action Air.

Here are a few signs your furnace could be putting you and your home at risk:

  • Smell of burning coming from HVAC after heat is turned on
  • Strong smell of fuel
  • Carbon dioxide monitor goes off
  • No heat is being produced
  • Utility bills increase
  • Your HVAC is making loud or unusual noises (rattling, buzzing, banging)

Having your HVAC system regularly serviced (2 times per year) is the best way to ensure your furnace is safe and reliable. Additionally, regular maintenance will improve your home’s indoor air quality, enable your system to operate at optimal performance, reduce energy costs, and mitigate expensive repairs.

If you have not had routine ac or furnace maintenance performed this season, contact Action Air today to schedule your Quality Maintenance inspection for only $50* out of pocket. Our team is dedicated to your home’s safety and comfort and is available to you 24-7 through our on-call Emergency Service.

HVAC Troubleshooting: What is AC Short Cycling?

Why Do Air Conditioners Cycle On and Off Randomly?

Problems with AC Cycles AC systems naturally turn on and off to maintain the temperature that is set on the thermostat. Cycling is necessary for AC function due to the refrigeration process. The refrigeration process is the most economical approach to cooling an area. The process begins by removing heat via refrigerant (freon), then cooling through a cycle of compression. The heat absorbed by the refrigerants is then expelled to the outside air.

How Does Air Conditioning Cool Your Home?

Air conditioning’s task is removing heat, cooling an area, and successfully expelling that heat to the outside air. The system must go through a cycle of changing the form of heat – from liquid to gas (cooling), and gas back into liquid (heating). Changing the form of heat is accomplished through compression, condensation, expansion and evaporation. Compression is the key component to the refrigeration process.  This is why the compressor is the heart of an AC system.

How To Determine Irregular AC Cycling

Cycling is a normal operational process for HVAC systems, however cause for concern happens when the frequency of the cycling increases.  Typically, three cooling cycles will occur within an hour on a moderate summer day. This means the compressor will run for 10 minutes, then shut down and start up again after 10 minutes. If your AC cycle is inconsistent and the set temperature of your home is fluctuating more than usual, then your system is most likely short cycling. Short cycling is the most common issue homeowners have with their AC unit, and it occurs when your AC is turning on and off irregularly.

AC short cycling could be caused by several factors including an obstructed compressor, faulty thermostat, leaking refrigerant, icy coils, dirty air filter, electrical/board issues, or a HVAC system that is too big for the building in which it is installed. AC short cycling can have a lot of negative effects on your HVAC system, and comfort. It creates stress on the HVAC system that can lead to mechanical breakdowns and costly repairs. AC Short cycling also causes temperature swings and increases your energy bills.

How To Prevent Irregular AC Cycling

Irregular AC Cycles Proper maintenance of your HVAC system is the best way to prevent AC short cycling from occurring. Scheduling a tune-up once a year will keep your system running efficiently and increase the lifespan of your HVAC system. In the meantime, make sure you are changing your air filter regularly and paying attention to the frequency of AC cycles and temperature fluctuation.

If you are experiencing short cycling with your AC, or to schedule your yearly tune-up, call the experts at Action AC 800-400-4152. We are dedicated to your comfort, and our Nate-Certified technicians guarantee efficient and convenient service.