Author Archives: Kelly Davis

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4 Signs your AC Unit is Failing

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Signs Your AC is Failing

The best way to spot issues with your system is to have it properly maintained. A trained AC/HVAC technician for ac repair will spot concerns before they become costly problems and that’s worth the maintenance call. But if you’re not on a maintenance plan, or if it’s between check ups, there are some things to watch for.

Tue Jan 17, 2017 by +Dave Whittington
4 Signs Your AC Unit is FailingSince AC units are outside the home, most of us don’t think about it until it goes out, or if you have to mow around it. The system quietly does its job and we live quite removed from it until that familiar hum is silenced. Then we panic fearing that we’ll melt, and with the temps in Florida during the summer, there’s a good chance we could.

That’s why it’s best to recognize a problem before it becomes a complete shutdown of your unit. Here’s what you need to keep an eye on:

  1. Blowing Warm Air

    This is the most obvious sign and one you can’t ignore for very long in the Sunshine State. If warm, or room temperature air, is coming out of your vents you have a problem. Even on the hottest days, when the unit may struggle to keep a home at the frigid temps you like, the air blowing out of the vents will still be cool. If it’s not, there could be a problem with the compressor or freon may be low. Your AC technician can tell you which one it is as well as add freon to your system. But since freon doesn’t evaporate, if you have a low level, there’s likely a leak or other problem causing it.

  2. Running Constantly

    This sign is a little difficult to assess in Florida since our AC gets quite the workout most days. However, if you notice a change in how it used to run such as running for an extended period of time or not shutting off, there’s most likely a problem. If you’re busy, you might not notice the excessive running until you get your electric bill. Then it will be hard to ignore.

  3. Barely Blowing

    If you’ve noticed a reduction of airflow, that’s a problem and may be indicative of your compressor going bad. If you’re noticing a problem only in one room or area of the home, it may not be the compressor but a problem with your ductwork instead. This happens frequently in Florida with ductwork under homes and places where critters can easily access it and make that cool dark place their new home with a couple of quick chomps or swipes of their paws.

  4. Making Unidentified Noises

    If your AC unit is shuddering when it comes on or making strange clangs and bumps, instead of the usual soothing hum, it may be time to call a technician. Before calling, inspect the unit for any twigs or branches that could’ve become lodged inside. If you don’t see anything, call

  5. Phoenix HVAC Today

Credit to  Tue Jan 17, 2017 by +Dave Whittington. “4 Signs your AC Unit is Failing”



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AC An air conditioner’s filters, coils, and fins

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An air conditioner’s filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases. Check out our Energy Saver 101 Infographic: Home Cooling for more ways to help improve your comfort and the efficiency of your air conditioner.
Air Conditioner Filters

The most important maintenance task that will ensure the efficiency of your air conditioner is to routinely replace or clean its filters. Clogged, dirty filters block normal airflow and reduce a system’s efficiency significantly. With normal airflow obstructed, air that bypasses the filter may carry dirt directly into the evaporator coil and impair the coil’s heat-absorbing capacity. Replacing a dirty, clogged filter with a clean one can lower your air conditioner’s energy consumption by 5% to 15%.

For central air conditioners, filters are generally located somewhere along the return duct’s length. Common filter locations are in walls, ceilings, furnaces, or in the air conditioner itself. Room air conditioners have a filter mounted in the grill that faces into the room.

Some types of filters are reusable; others must be replaced. They are available in a variety of types and efficiencies. Clean or replace your air conditioning system’s filter or filters every month or two during the cooling season. Filters may need more frequent attention if the air conditioner is in constant use, is subjected to dusty conditions, or you have fur-bearing pets in the house.
Air Conditioner Coils

The air conditioner’s evaporator coil and condenser coil collect dirt over their months and years of service. A clean filter prevents the evaporator coil from soiling quickly. In time, however, the evaporator coil will still collect dirt. This dirt reduces airflow and insulates the coil, reducing its ability to absorb heat. To avoid this problem, check your evaporator coil every year and clean it as necessary.

Outdoor condenser coils can also become very dirty if the outdoor environment is dusty or if there is foliage nearby. You can easily see the condenser coil and notice if dirt is collecting on its fins.

You should minimize dirt and debris near the condenser unit. Your dryer vents, falling leaves, and lawn mower are all potential sources of dirt and debris. Cleaning the area around the coil, removing any debris, and trimming foliage back at least 2 feet (0.6 meters) allow for adequate airflow around the condenser.
Coil Fins

The aluminum fins on evaporator and condenser coils are easily bent and can block airflow through the coil. Air conditioning wholesalers sell a tool called a “fin comb” that will comb these fins back into nearly original condition.
Condensate Drains

Occasionally pass a stiff wire through the unit’s drain channels. Clogged drain channels prevent a unit from reducing humidity, and the resulting excess moisture may discolor walls or carpet.
Window Seals for Room Air Conditioners

At the start of each cooling season, inspect the seal between the air conditioner and the window frame to ensure it makes contact with the unit’s metal case. Moisture can damage this seal, allowing cool air to escape from your house.
Preparing for Winter

In the winter, either cover your room air conditioner or remove and store it. Covering the outdoor unit of a central air conditioner will protect the unit from winter weather and debris.
Hiring a Professional

When your air conditioner needs more than regular maintenance, hire a professional service technician. A well-trained technician will find and fix problems in your air conditioning system.

The technician should:

Check for correct amount of refrigerant
Test for refrigerant leaks using a leak detector
Capture any refrigerant that must be evacuated from the system, instead of illegally releasing it to the atmosphere
Check for and seal duct leakage in central systems
Measure airflow through the evaporator coil
Verify the correct electric control sequence and make sure that the heating system and cooling system cannot operate simultaneously
Inspect electric terminals, clean and tighten connections, and apply a non-conductive coating if necessary
Oil motors and check belts for tightness and wear
Check the accuracy of the thermostat.

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HVAC Cooling Compressor Maintenance

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Keep the Heart Pumping: Proper HVAC Compressor Maintenance can mean the difference of a cool comfortable summer. You can take some small precautions to help your cooling system get off to a healthy start. Go out and clean any leaves or debris from around your unit. make sure it’s getting enough air flow. Check the fins on the cooling unit making sure none are bent too badly. You can buy a comb to help straighten these out a little to help your unit preform better. If your not sure it’s putting out enough cold air Give Phoenix HVAC a call we’ll come check your Freon level and check other aspects of your unit to make sure everything is in tip top shape. Stop back to read more from Phoenix HVAC your local Heating and Cooling specialist.