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8 Factors When Choosing A Repair Service

As a homeowner, you must embrace the maintenance cycle if you want to have a functional home. This is essential because a home's infrastructure, including appliances and electronics, degrades over time. For example, with time, people's HVAC systems have deteriorated...

Troubleshooting Your HVAC

Keep and Eye on Your HVAC Drain

HVAC systems produce water and moisture which must be drained through your HVAC Drain. This drainage needs to be checked for proper removal or it may cause water damage, flooding, mold and bacteria to develop.

Essential HVAC Maintenance For Your System’s Health

Imagine your HVAC system breaking down on a hot summer day or cold winter night. It can lead to a costly repair and the discomfort you and your family will have to go through without a working HVAC system.  The sudden breakdown of an HVAC unit is a nightmare for many....

Why Does My Heat Pump Have Ice, Frost?

Have you ever seen ice or frost on your Heat Pump in the Winter? This can often be normal to see from time to time. Your heat pump is designed to extract heat from outside and transfer it inside.

Why Does My Heat Pump Run All the Time?

If your heat pump runs all the time it may or may not be normal depending on a couple of factors. For example if the heat pump is meeting your temperature setting and the external temperature is less than 30 degrees then your heat pump system is likely functioning properly.

What Causes a Frozen Coil

A frozen coil in your air conditioner or heat pump will be noticed once you start getting warm air coming from your registers. There are many things which can cause warm air instead of cold air to filter into your house. This article will look at many common reasons a coil can freeze.

Upstairs Doesn’t Stay Cool

“My upstairs areas are not staying cool” report many customers. There are a lot of factors to consider when trying to find the problem that so many people experience.
In fact, there can be multiple reasons why multi level homes experience this.

Top does not stay cool

“My upstairs areas don’t stay fresh,” report many clients. There are many factors to consider when trying to find the problem experienced by so many people.
In fact, there may be several reasons why multi-level homes experience this.

Short Cycling Systems

Short cycling can happen with your air conditioning or heat pump system. Your air conditioning or heat pump systems have built in operations which enable them to turn on and off as required to meet your needs.

Common AC Problems

The most common air conditioning problems reported by our customers are contained here along with common results. Checking several things before you call in your HVAC Specialist can save you money and aggravation.

Troubleshooting Your Air Conditioner

Troubleshooting your air conditioner system begins with a few common sense checks. It seems that air conditioning problems show up when the weather becomes very hot. If your air conditioning does not seem to be working, there are several things to rule out before you have to contact a professional. Checking these things first can save you a lot of aggravation and possibly money as well.

Mismatched HVAC Systems

The problem with mismatched HVAC systems is that they are just that…systems. They work and perform best when the components indoors and outdoors match. These multi-component systems were designed to work together and operate most efficiently when they are matched.

Low Refrigerant

A commonly reported issue by customers regarding their underperforming air conditioners is that they are low or out of refrigerant. Many people do not know that refrigerant does not get used up. It exists in sealed coils and does not become “low” unless there is a leak.

Choosing the Best Air Filter for Your Home

Replacing your air filter is one of the small things you can do that can greatly affect the quality of air inside your home. Since many illnesses are associated with airborne contaminants, indoor air quality is a very important consideration.

What Are the Most Common HVAC Problems?

Dirty Coils and Filters can Cost You

You may not even realize your HVAC System has dirty coils and/ or filters. At the very least they can affect the air quality in your home, but they can also cause a strain on your HVAC systems causing them to work harder and use more energy to perform less. If the problem continues unchecked then it can lead to system failure.

Avoid These 8 HVAC Problems With Regular Maintenance

Your furnace and air conditioner are vital components of your home. A malfunctioning HVAC can make your home uncomfortable and even dangerous to your health. However, regularly maintaining your HVAC system and scheduling routine checkups with a certified technician...

Why Does My Heat Pump Have Ice, Frost?

Have you ever seen ice or frost on your Heat Pump in the Winter? This can often be normal to see from time to time. Your heat pump is designed to extract heat from outside and transfer it inside.

Why Does My Heat Pump Run All the Time?

If your heat pump runs all the time it may or may not be normal depending on a couple of factors. For example if the heat pump is meeting your temperature setting and the external temperature is less than 30 degrees then your heat pump system is likely functioning properly.

What Causes a Frozen Coil

A frozen coil in your air conditioner or heat pump will be noticed once you start getting warm air coming from your registers. There are many things which can cause warm air instead of cold air to filter into your house. This article will look at many common reasons a coil can freeze.

Air Conditioner Leak

An Air Conditioner leak can be caused by many things. Water leaks from your air conditioner can cause significant damage to your floors, ceiling, furnishings, and more. Unchecked, it can lead to mold issues as well.
An Air Conditioner leak can be simple slow drips which accumulate or pouring water. Either are signs that your air conditioner leaks and needs attention.

Upstairs Doesn’t Stay Cool

“My upstairs areas are not staying cool” report many customers. There are a lot of factors to consider when trying to find the problem that so many people experience.
In fact, there can be multiple reasons why multi level homes experience this.

Top does not stay cool

“My upstairs areas don’t stay fresh,” report many clients. There are many factors to consider when trying to find the problem experienced by so many people.
In fact, there may be several reasons why multi-level homes experience this.

Coil Care

Coil care for your HVAC system is very important. A coil is a main component of your HVAC System. There is a condenser coil and an evaporator coil. These coils are an integral part of the heat exchange that happens when cooling your air. These coils contain your refrigerant. Many older systems used Freon (R22) while more recent systems use Puron (R410a).

Storms and HVAC

Summer storms can really wreak havoc on your home’s equipment, most of all your HVAC equipment. These storms can pop up at any time and these days seem to do so with increased frequency. This can be very costly to you, but there are several things which can be done to minimize the problem.
We, at Air Doctor Heating and Air perform insurance inspections insurance companies to document the damage which often requires complete replacement of the HVAC systems.

Short Cycling Systems

Short cycling can happen with your air conditioning or heat pump system. Your air conditioning or heat pump systems have built in operations which enable them to turn on and off as required to meet your needs.

Common AC Problems

The most common air conditioning problems reported by our customers are contained here along with common results. Checking several things before you call in your HVAC Specialist can save you money and aggravation.

Low Refrigerant

A commonly reported issue by customers regarding their underperforming air conditioners is that they are low or out of refrigerant. Many people do not know that refrigerant does not get used up. It exists in sealed coils and does not become “low” unless there is a leak.

Heat Gain

Heat Gain can greatly effect how hard your home’s Air Conditioning system has to work. It, therefore, causes you to use more energy and will cost more to operate. Heat Gain can decrease your system’s energy efficiency.

Uneven Temperatures

Uneven temperatures in your home can be very uncomfortable. They can also cause you to always be adjusting your thermostats. Evening out the temperature zone in your home can give you more comfort throughout. Many things can affect the temperatures in your home. Even if your thermostats are set to the same temperature, not every room is the same temperature.

Coil Leak

HVAC Leaks can be varied since many things are considered “leaks” in an Air Conditioning or Heat Pump system. HVAC Leaks can refer to refrigerant leaks or water accumulations. Water leaks include drain issues, condensation leaks or drainpipe issues.

Refrigeration Leaks

Refrigeration HVAC leaks are caused when the refrigerant leaks from a refrigerant line, pipe, valve or coil typically. This can happen over time from:

  • Corrosion
  • Damage
  • Wear and Tear
  • High usage

Coil Leaking

Refrigeration does not leak from a healthy, well operating system, because refrigeration does not get used up. If the system is low on refrigerant, it is from a leak which from a defect or damage to the system. These can be a slow leak from a pinhole in a pipe, from a leak in a valve or from the coil. These leaks are normally only discovered when performing a maintenance inspection where the technician will discover a variance in the refrigerant pressure or when the system fails to cool the air properly.

Refrigeration- Source of Leaks

In order to find the source of the leak, a certified technician will need to perform a leak test. There are two leak checks a technician might use to find the source of the leak:

  • An Electronic Infrared Leak Detector, this is the least expensive method of testing, but will not be effective if the system is very low on refrigerant or where there can be many sources causing the leak
  • Nitrogen Pressure Test, this is a very reliable test under any circumstances, even if the system is flat (very little refrigerant in the system. It necessitates vacuuming any remaining refrigerant from the system and inserting Nitrogen to a high pressure so anywhere the system is leaking will be discovered.

In some cases, the leak may be repairable if it is a fitting or joint which can be sealed. Unfortunately, many of the leaks are not repairable and may require replacement of the offending part. This can be costly since it will also require proper recovery of any remaining refrigerant, flushing the system with Nitrogen, installing the new part and then recharging the system with refrigerant.

When it is an older system and uses R22 Freon refrigerant, it may require replacement of the system. R22 refrigerant was banned from manufacture in the United States in 2010 and banned from import to the United States since 2020 due to environmental concerns. It is no longer readily available from suppliers. R22 Refrigerant

Water Leaks

If HVAC Water leaks from your air conditioner it can cause significant damage to your floors, ceiling, furnishings, and more. Unchecked, it can lead to mold issues as well.

An Air Conditioner leak can be simple slow drips which accumulate or pouring water. Either are signs that your air conditioner leaks and needs attention.

Drainpipe Becomes Clogged

It is normal for your air conditioning system to produce water. Water is normally produced through condensation as your air is cooled and humidity collects. Normally this condensation is drained through a pipe to your drain pan and then to the outside.

Sometimes dirt and debris can collect and then clog up your drainpipe. When this happens, the water will become backed up and overflow. The drainpipe will need to be flushed. Sometimes you can do this with a shop vac or your HVAC specialist can do this for you.

Clogged Pipe

Make sure to change your air filters at least every three months or every month if you have pets or high traffic. This will prevent some of the debris from reaching your drainage line. A dirty air filter can decrease airflow, allow debris to pass and cause an air conditioner leak.

Condensate Pump is Not Working

Condensate Pump

Condensate pumps are used to mechanically expedite the flow of condensation (water from your system) to the drainage pipes. The pump can become clogged or damaged and will not facilitate the drainage as it is meant to do. Again leading to an air conditioner leak. Excessive moisture can lead to mold growth so this needs to be looked at by your HVAC Specialist before water damage occurs.

Condensation Drain Pan

Another cause of an air conditioner leak can be the drain pan. The drain pan sits underneath the unit and collects excess drainage. It can overflow if the drainpipes become clogged. It can also leak if there is a crack or joint split.

Drain Pan Clog

Your HVAC Specialist will be able to determine if it is a condensate pump, clogged pipes or some other drainage issue.

Frozen Evaporator Coil

A frozen evaporator coil can lead to an air conditioner leak as well. There are several things that can cause your evaporator coil to freeze up:

  • Obstructed or Insufficient Air Flow
  • Refrigerant Leak (low refrigerant)
  • Coil is dirty
  • Air Filter is Dirty

Frozen Coil

If you find the evaporator coil is frozen, you should turn off your system so it can defrost. It will need to be fully defrosted before a technician can determine the problem. This will need to be seen by a licensed HVAC technician to determine if there is a refrigerant leak or what is causing the freezing.

Conclusion

To help prevent an air conditioner leak, make sure you always have:

  • Adequate airflow to your HVAC equipment
  • Change your air filters regularly.
  • Have annual maintenance inspections performed
  • Periodically check your drain pan and your indoor air conditioning unit to detect issues before a system floods.

Your Air Doctor Heating and Air Specialists are here to help you with any Air Conditioning leaks or any of your HVAC needs. Licensed in Md, WV, VA and PA! Proudly serving our communities in:

  • All Frederick County and Frederick, MD
  • All Washington County including Hagerstown, Boonsboro, Williamsport, Sharpsburg, Keedysville, Rohrersville, MD
  • All Jefferson County, WV
  • All Berkeley County, WV

Call or Text Air Doctor Heating and Air 301-799-7200 or Contact Us

HVAC Licenses

  •   MD HVAC # 17747
  •   WV HVAC # 07874
  •   VA HVAC # 2710071510
  •   PA HICR # PA152515

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