IERNA's Heating & Cooling Blog : Posts Tagged ‘Air Conditioning Repair’

How to Recognize the Need for Air Conditioning Repairs

Monday, May 11th, 2015

By investing in a quality air conditioning system and scheduling routine air conditioning maintenance, you can count on getting a pretty reliable and consistent performance from your air conditioner. Of course, no air conditioning system is perfect. Eventually you will  find that your air conditioner is compromised in some way and that it is in need of repairs. When that time comes, make sure that it is our number that you dial.

Ierna’s Heating & Cooling knows whole-house cooling systems inside and out, which is important considering just how much can go wrong with any given air conditioner. Regardless of what problems you may encounter with your cooling system, though, you can count on us to get it right back on track. Contact us today if you are concerned about the condition or operation of your AC here in Tampa, FL.

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Common Problems with AC Condenser Unit

Thursday, January 29th, 2015

Your air conditioning system has many components, but there are three main ones that do the lion’s share of the work: the compressor, condenser and the evaporator. Today we’re going to focus on the condenser and its role in the air conditioning process.

What Is the Condenser?

The condenser is a component housed in your outdoor unit with the compressor. When the refrigerant has been compressed, it makes its way into the condenser, where a set of coils helps the refrigerant release its heat as it flows through them. There is also a condenser fan which helps to further cool the refrigerant by sucking up the heat from the refrigerant and blowing it into the outdoor air. Without the condenser, the refrigerant would not be able to cool properly.

What Can Go Wrong with a Condenser?

There are a few things that can malfunction with a condenser and cause operational issues with your air conditioner. First, the aluminum fins of the coils are very easily bent; if a number of them are bent the wrong way, the air that needs to pass through the fins can be restricted and as a result, inhibit the cooling process. A second common problem that can develop with the condenser is dirty coils. When a layer of dirt and dust forms on the coils, it can act as an insulator that traps in the heat instead of allowing the coils to release it. In turn, this can result in warm air blowing into your home, among other problems. Refrigerant leaks are another common type of problem that can develop with the condenser. A refrigerant leak in the condenser will lower the amount of refrigerant in the system, which creates an imbalance; as such, the leak has to be repaired by an expert. Lastly, the condenser fan can develop problems: electrical issues with wiring and the capacitor, fan motor problems and/or problems with bent or loose fan blades.

The condenser is a key component to the successful operation of your air conditioner and will require the help of an expert.

The specialists at Ierna’s Heating and Cooling can handle any type of air conditioning repair you may have in Land O’Lakes, so call us today!

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How a Faulty Thermostat Can Damage Your AC

Monday, September 15th, 2014

The thermostat is one of the most vital parts of an air conditioning system, one that people interact with on an almost daily basis, and one of the few parts of an AC that sits in plain sight—yet few homeowners ever give it much thought. If the thermostat malfunctions, your home’s cooling and the system that takes care of it could be in for trouble.

When a malfunctioning thermostat causes problems, you need to call for expert air conditioning repair in Tampa Bay, FL from a company with NATE-certified technicians and the training to handle any necessary work. You need to call Ierna’s Heating & Cooling. We have same day emergency service, so don’t hesitate to call when you need that air conditioner repair done now.

Some AC problems due to a malfunctioning thermostat

When a thermostat develops repair problems, it will often lose its connection to the air conditioner. In such cases, although you will need repair technicians to fix the thermostat, you shouldn’t have damage to the AC itself that will need work.

However, there are ways that a thermostat can go wrong that will cause serious problems for the air conditioner. One of them is when a miscalibration in the thermostat leads to a short-cycling AC. “Short-cycling” is when an air conditioner’s cooling cycle turns off before it can finish: the compressor begins its work, and then abruptly shuts off because the thermostat has incorrectly determined that it has reached its target temperature. But soon after the compressor turns off, it will turn back on again, starting the process anew.

The reason this will turn into a significant AC repair problem is because it places severe stress on the compressor, the most valuable part of an air conditioner and the most expensive component to replace should it fail. The start-stop action of short-cycling is one of the worst things that a compressor can undergo. The stress isn’t limited to the compressor either: it will also affect the motors and cause them to burn out.

The wires in the thermostat that connect to the AC can fail in a way that will cause the air conditioner’s fan to run without stop, and this is also potentially very damaging for the AC as it places heavy strain on the fan motor.

Issues with the thermostat often initially appear as problems in other parts of the AC (for example, short cycling can occur because of a loss of refrigerant), so you may not know that the thermostat is the cause at the beginning. However, your repair technician can track the source of the malfunction, so whenever you detect anything amiss with your cooling system, get on the phone and call a reputable repair contractor.

You can also call us for upgrades to your current thermostat to a more efficient model.

Our team at Ierna’s Heating & Cooling is standing by now to help you with air conditioning repair in Tampa, FL. Call us today. 

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Why Ice on Your Coils Indicates a Need for Air Conditioning Repair

Friday, May 9th, 2014

Ice and frost appearing along the evaporator coil of an air conditioner often confuses people. It seems like it shouldn’t happen… but the cool air coming the system makes it feel like it couldn’t be that much of a problem.

Yet ice on an air conditioner is a serious problem, and one that needs the immediate assistance of HVAC technicians. In Wesley Chapel, FL, air conditioning repair from the experienced staff of Ierna’s Heating & Cooling will remove frost from your AC and fix the trouble that started it.

Ice on the coils and why it needs repair

There are a number of causes for the development of ice and frost along the coils. These are the most common:

  • Clogged air filter
  • Dirty evaporator coil
  • Lowered refrigerant charge

In each case, the evaporator coil loses its ability to effectively absorb heat. This prevents the cold refrigerant moving through the coil from warming up, and subsequently the moisture that condenses along the coil will freeze.

Once ice begins to form along the coil, it further blocks heat absorption and initiates a downward cycle where even more ice forms. Without remedy, the entire coil will eventually have a block of ice covering it, completely halting heat exchange and preventing the air conditioner from providing any cooling. (The mass of ice can also permanently damage the coil.)

A clogged air filter is the most frequent cause of icing, but also one that is easily preventable. Make sure you change the filter once a month while the air conditioner runs regularly (i.e. most of the summer) and you shouldn’t encounter a problem from the evaporator coil receiving insufficient warm air. If ice starts to form, change the filter first, but still call for repairs to help defrost the coil and check that another malfunction isn’t creating the situation.

A grime-covered evaporator coil will also require professional repairs; in order to properly clean the coil, it must first be removed from the unit, and this calls for the work of a trained technician. Keep in mind that simply scraping off the ice will not solve the problem.

Loss of refrigerant charge is the most serious cause of icing. Not only will it start the ice development across the coil, it will change the pressure inside the system and damage other components. The compressor—the heart of the AC—is at particular risk, since the refrigerant will no longer cool it down adequately and the component may overheat and burn out. You must call for repairs if you suspect a refrigerant leak is lowering its charge (a hissing sound is one of the warning signs). Professionals will locate the leaks, seal them, check for compressor damage, and then recharge the refrigerant to its correct level.

Don’t freeze up when ice appears

If you dismiss the appearance of ice on your air conditioner, you will put the whole system in jeopardy. This is a case where an AC sends an obvious sign that it needs repair work, so schedule air conditioning repair in Wesley Chapel, FL.

Ierna’s Heating & Cooling has 24-hour emergency service, so we’re always prepared to de-ice and restore your air conditioner the moment you see the first sign of frost.

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Electrical Problems and Air Conditioning Repair

Monday, May 5th, 2014

Air conditioners run off electricity; some of the more common repair needs they can encounter are due to electrical failures. Some of these repairs are simple ones that will only take technicians a short time to fix. Others can lead to catastrophic troubles within the system. The good news is that the sooner you call for repairs, the less likely the electrical issue will become a major one.

Here are some of the more common electric problems in an air conditioner that can lead to repair needs. Keep a close watch for any signs of an AC malfunctioning so you can call right away for the necessary help you need from professional technicians.

For fast service and quality air conditioning repair in Trinity, FL, contact the NATE-certified technicians at Ierna’s Heating & Cooling. You can reach us 24-hours a day to solve whatever trouble threatens your summer cooling.

Some common electrical troubles

  • Failing capacitors: Capacitors are cylindrical electrical components that send voltage to the motors to start them moving and then keep them running. Each motor will have a separate start and run capacitor. If the capacitors begin to wear down or suffer from excess voltage, they can fail and will need replacement. If you hear a clicking noise from the air conditioner cabinet, it usually means one of the capacitors is failing. Call for repairs before you lose the compressor or the fan.
  • Open or stuck relays: Relays transmit electrical power to the motors. If one of the relays becomes forced open (this can happen in outdoor units because of debris infiltration) it will prevent the motor from turning on. If a relay becomes sealed shut, then the motor will run constantly. Whenever an AC refuses to come on, or refuses to shut off, then an electrical relay issue is one of the likely causes.
  • Frequently tripped circuit breakers: If turning on your air conditioning causes circuit breakers to trip regularly, then for some reason the system is demanding too much power, which could come from faulty wiring or problems in the motors. The AC may not be properly matched to your home’s voltage. (The issue could be outside of the air conditioner, however, such as a fault with the circuit control board.) Have experts look into the system and find out the problem.

Do not troubleshoot electrical problems yourself

Although some electrical issues are not difficult for trained professionals to correct and will only take a short time to remedy, do not make the mistake of trying to get the work done on your own. You can run the risk of electrical shock, and may also cause additional damage. In the case of replacing components such as capacitors, it requires experts to match up the new units with the voltage requirements of the air conditioning system.

Ierna’s Heating & Cooling has a qualified staff to handle your electrical air conditioning repair in Trinity, FL. We service, repair, and maintain all makes and models.

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Common Compressor Problems in Your Air Conditioner

Tuesday, April 29th, 2014

The compressor is one of the vital components in an air conditioner: it works as the “heart” of the system, applying energy to the refrigerant and then propelling it through the coils to carry out heat exchange. Without a working compressor, an air conditioner will not produce any cooling at all.

When air conditioners begin to experience operating trouble, the compressor is one of the prime suspects that repair technicians investigate. Many common AC issues will stem from problems in the compressor or its motor. You cannot handle fixing compressor malfunctions unless you are a trained HVAC technician, so rely on expert assistance.

Call Ierna’s Heating & Cooling for air conditioning repair in Tampa, FL to fix or replace a bad compressor and ensure that your new compressor will be properly maintained. 

Compressor problems that can affect an AC

  • Bad pressurization: The compressor works through pump action—suction and discharge—to draw liquid refrigerant inside and then compress it into a high temperature gas. However, the suction pressure or the discharge pressure can become too high or too low because of improper mechanical motion. If this happens, the pressure throughout the unit will not be at its ideal level, and this will result in a drop in cooling power.
  • Failed compressor motor: A motor runs the mechanical action of the compressor, and if it fails, the compressor will not work. In most cases, a compressor motor that stops working has a failed start capacitor, a cylindrical component responsible for sending electrical voltage to the motor to begin operation. Repair technicians can replace the capacitor. If the motor itself has burned out, it will need replacement.
  • Overheated compressor: This could come from problems with wiring, or it may be a fault in the compressor motor. Whatever the cause, overheating will soon cause the compressor to stop working.
  • Locked compressor: A compressor that is too worn down from years of operation or lack of maintenance can become locked in place. Sometimes replacement of the compressor will fix this, but if the air conditioner is near or beyond its estimated service lifespan, a fixed compressor is often a sign that the whole air conditioner must be replaced.

Before calling for professionals for assistance with a misbehaving air conditioner, make sure to check that no circuit breakers have tripped and that you have set the thermostat correctly. Once you rule out these simple sources for the problem, call for professionals. Compressor problems must have repair work from experienced HVAC technicians.

Ierna’s Heating & Cooling can come to your assistance with air conditioning repair in Tampa, FL any time of the day or night, seven days a week. We take pride in our work and give 100% to every job: it’s how we’ve earned the trust of so many customers.

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Repair These Air Conditioning Problems Before They Grow Worse

Thursday, April 3rd, 2014

As we move into the cooling season, when our air conditioners will start to earn their keep, it’s important to keep careful watch for any problems that might develop inside the AC cabinet. Warning signs like uncanny noises, unusual odors from the vents, uneven heating, increases in utility bills, and plunges in cooling power can all point toward an air conditioner that needs to have professional repairs.

You must respond to air conditioning problems rapidly, because repair needs tend to grow worse due to the increased stress they create throughout the system. Before an air conditioner repair turns more expensive or shuts down the unit entirely, call for skilled help. Ierna’s Heating & Cooling has technicians ready to repair your air conditioning in Tampa, FL any time of the day or night. Bring us in to help whenever you run into these repair needs that will grow worse if ignored:

  • Clanging sounds from a broken fan: The fans that move air into your house and into the outside cabinet must remain balanced and undamaged or else they will begin to strike the outside housing. This will further damage the fan and other parts of the AC. Professionals can straighten the blades (don’t try it yourself, since you might bend them too much the other direction) and repair any issues they have already created.
  • Motors wearing down: If motors become dusty or do not receive regular lubrication during routine maintenance, they will start to wear down and create too much friction in their moving parts. Eventually, the motors will burn out. If you hear a shrieking or screeching noise from your AC cabinet, you must move fast to have technicians repair the problems before the motor requires replacement.
  • Leaking refrigerant: Have you noticed icing along the indoor coils and a drop in cooling power? You likely have refrigerant leaking from the system. If this continues, it will cause damage to the compressor and the refrigerant loss will generate more ice over the coils and the cooling power will eventually fail. Professionals will find the location of leak and seal it, and then place the proper amount of refrigerant back into the system (“recharging” it) so the AC will work at its regular cooling level once again.

You do not want to have an air conditioner fail during the height of the summer heat, which is when it is most likely to break down because of all the work you’ll need from it. Whenever you think you have an AC repair need, call for help from Ierna’s Heating & Cooling. We also recommend you have yearly maintenance done on your air conditioning in Tampa, FL to head off as many problems as possible.

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Air Conditioning Repair Tip: Hissing Sounds

Monday, November 4th, 2013

Any abnormal sound coming from your home’s air conditioning system requires expert attention ASAP. But what counts as an “abnormal” sound? If you’ve lived with your particular air conditioner for more than a month, you should already have a good sense of the noise it generates during normal operation: a steady humming from the fans, with a regular increase in volume when the compressor starts up the cooling cycle. During start-up, minor clicking noises are normal as long as the air conditioner shows no signs of struggling (“hard starting”) to get to work.

Sounds that fall outside of this small circle can be considered abnormal. A common one is a hissing noise, which can signal a number of different issues that require professional attention. For expert, NATE-certified technicians to handle your air conditioning repair in Trinity, FL, call Ierna’s Heating & Cooling.

Reasons for that hissing noise

The most serious problem that might create a hissing noise is an issue in the compressor. The compressor plays a major role in providing cooling: it compresses the refrigerant that cycles through your air conditioner and making the cooling cycle possible. Without the compressor, the refrigerant won’t be able to cool your home. The hissing noise could indicate a leak in the compressor, allowing the compressed refrigerant to escape. This requires immediate attention, and the compressor will likely need replacement.

Another possibility—if your air conditioner is a heat pump that also provides warmth in cold weather—is that the reversing valve has developed a fault. This valve is responsible for changing the direction of the flow of refrigerant for the switch from heating to cooling, but in any season it can start to leak and create a hissing noise. This also will require professional repair.

Call in professionals

The complexity of a modern air conditioner (or heat pump) means that you should not attempt to handle repairs on your own. If you hear hissing, it usually means that refrigerant is escaping somewhere. You’ll need a trained professional to find out the exact problem and recharge the refrigerant to its correct level using the proper refrigerant mix.

Help isn’t far away: when you need air conditioning repair in Trinity, FL, call on Ierna’s Heating & Cooling 24 hours a day, 7 days a week.

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Air Conditioning Repair: Why Your System Blows Cold Air

Monday, October 28th, 2013

Most problems with air conditioners come down to one thing: a lack of cold air in your home. The more you understand about how air conditioning works, the easier it will be for you to identify and issues that crop up. Specifically, here is a simple explanation of how your AC cools the air in your home.

The process entails a circulating system of refrigerant gas. The gas begins by entering a compressor, which subjects it to a great deal of pressure and therefore increases the temperature. From there, it moves into a set of condenser coils, where the heat is dissapated into the outside air and the refrigerant condenses to a liquid. The high pressure liquid refrigerant then flows to the expansion valve.

The valve acts like the spray tip of an aerosol can, releasing a set amount of the liquefied refrigerant into the expansion coils. Inside those coils, the liquid evaporates and turns back into a gas. In the process, it absorbs heat from the air around the coils, cooling it. That cold air is then blown into your home with another fan: distributed through a series of ducts and lowering the temperature throughout your household.

Assuming this process is functioning correctly, it can’t do much wrong: as long as your system blows cold air properly, it’s doing its job. One exception occurs when the air conditioning unit is too large for its space, in which case it cools the air too quickly and cycles on and off too rapidly, costing you energy and causing unnecessary wear and tear on the system. In any case, if you experience a loss in cool air, or your system isn’t blowing the air sufficiently, it’s time to call in a repair service. The professionals at Ierna’s Heating & Cooling can get to the bottom of the problem with courtesy and professionalism. Call us today to set up an appointment.

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Why Prompt Air Conditioning Repair Is So Important

Monday, September 23rd, 2013

The modern air conditioning system is a marvelous machine, capable of efficiently and safely giving you the cool air that makes living in Florida pleasant the whole year. However, air conditioning engineers have yet to invent a self-repairing system. When something goes awry with your air conditioner, you need to get it repaired as soon as possible. Don’t hesitate and hope the trouble will simply vanish after a few days. There are some important reasons to get repairs done as soon as possible. We’ll go over the main ones in this post.

If you think it’s time to get professional repair service for your system, Ierna’s Heating & Cooling is a great choice for air conditioning repair in Tampa, FL.

  • Inefficiency: An air conditioner that isn’t operating at peak levels will start affecting your electricity bill. A damaged AC must strain to give you the lower temperatures you need, leading to higher energy bills as well as prematurely aging your system and possibly requiring you to get a full replacement.
  • Additional costly repairs: The longer an issue with your AC remains unrepaired, the more likely it will have a negative impact on other systems in a domino effect. Clogged filters can cause icing to form on the condenser coils. Loose components may strike against other vital machinery. Electrical trouble can cause short circuiting or motor burnout. Getting a jump on any of these problems will keep you from having to spend more to fix multiple problems later on.
  • Air quality: Modern homes are near-sealed environments. Fresh outdoor air has little chance of getting indoors. Because of this, it’s important to have quality air circulating through your home, and your AC and ductwork play a big part in this. If you have leaks in your ductwork letting contaminants into your air, you’ll want to get your ducts repaired right away so your AC isn’t circulating them around your home.

You may experience some cooler days in Florida now that it’s fall. But your air conditioner will still be important to you in our warm climate. Even if you think you can sweat through a few days with a poorly working AC, don’t procrastinate calling in professionals for repair. Get the highly-trained staff at Ierna’s Heating & Cooling to perform your air conditioning repair in Tampa, FL as soon as possible!

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