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BLOWER MOTOR RELAY

There are two main types of blower motors.
1. Single-speed units operate on an on/off switch. These motors operate at a consistent speed until the desired temperature is achieved.
2. Multi-speed models allow variable fan speeds, which can help alleviate cold spots and make other temperature adjustments. Variable speed motors are also more energy efficient; since they can control small temperature shifts, multi-speed units don’t use as much fuel to heat up larger spaces.
How to Identify a Failing Blower Motor Relay
In a blower motor, the relay supplies the power that allows the fans to circulate warmed air. Essentially an on/off switch, the blower motor relay’s reactions start and end the heating process in HVAC systems by controlling the flow of current between the power source and the motor.
Blower motor relays tend to wear out over time from the stress of constantly flicking back-and-forth.
These signs indicate a possible issue with the blower motor relay.
• When the blower motor does not respond at all, it may not be due to mechanical failure within the motor itself. Since the relay supplies the current that makes the motor move, a nonresponsive motor may be the result of a worn-out relay.
• The blower motor relay does more than channel electrical current. Relays are a vital protection against electrical surges. When the relay receives a jolt of strong current or simply cannot manage and distribute its load, it will send excess current into the fuse. This forces a shutdown which protects the entire system from electrical damage. Thus, blown fuses could be a sign of relay issues.
• Blower motor relays handle a large amount of current. Malfunctioning relays aren’t able to distribute their load properly. This can cause the relay to retain excess heat and become warm to the touch. If left unaddressed, the heat from a compromised relay can melt away the plastic casing and components around it. In extreme cases, the panel or fuse box can sustain damage as well.
A malfunctioning relay means the HVAC system can’t distribute the treated air until the problem is corrected.

BLOWER MOTORS

A blower motor is the component within a home’s HVAC system. The motor blows heated air through vents when the heating system is in use. Conversely, some blower motors blow cold air when the air conditioning system is in use. There are two main types of blower motors: single-speed motors and variable-speed motors.

CAPACITOR

An HVAC capacitor is a device that stores electrical charge and is used in heating, ventilation, and air conditioning units. There are two types of capacitors found in HVAC units: start capacitors and run capacitors. Some HVAC units will only have a run capacitor.

COMPRESSOR

THE BASICS OF THE COMPRESSOR
In a split air conditioning system—the standard central AC found in most homes—the compressor is located in the outdoor unit. Its job is to circulate the refrigerant necessary for heat exchange through the coils of the indoor and outdoor unit, and also to apply the energy to the refrigerant. When you think of the air conditioner requiring power to provide cooling, you’re thinking of the electricity sent to run the compressor. (Electricity also powers the fans, although they do not provide cooling on their own, and can operate in “fan-only” mode.)
A motor powers the compressor, which is itself constructed like a motor, with a cylinder and piston. The compressor compresses the gaseous refrigerant, and this raises the refrigerant’s temperature so that changes it into a high-pressure gas. The high pressure forces the refrigerant through a line that leads to the outdoor coil, where the refrigerant releases its heat and condenses into a liquid. The liquid refrigerant then continues its trip to the indoor unit, where the refrigerant evaporates into a gas again and absorbs the heat from inside your home. The refrigerant then returns to the compressor and the cycle starts again.
COMPRESSOR REPAIRS
The compressor undergoes a great deal of stress during a cooling season in South Carolina, and it will wear down the same way a motor will. Grime and dust contamination will also affect it, leading to it becoming stuck. This will stop the cooling cycle, and usually the compressor must be replaced. A malfunction in the compressor’s motor will also stop cooling. Compressors can develop leaks at their connectors, causing a loss of refrigerant. Any drop in refrigerant charge can lead to damage to the compressor.

CONDENSER FAN MOTOR

Both air source heat pumps and air source air conditioners have a condenser fan motor. For an air conditioner, the condenser fan motor is used to reject heat. For a heat pump, the condenser fan motor both rejects heats and pulls air into the condenser coil to absorb heat. There are times when the condenser fan motor will fail making a repair necessary.

CONTACTOR

The contactor is the part of the air conditioner that controls the flow of electricity into the unit. When you turn off your AC, the contactor goes up, blocking power. By the same token, every time you turn on the air conditioner, the contactor is lowered, allowing electricity to power the system. Once your home reaches the temperature set on the thermostat, the contactor goes up again.1. The condenser unit never shuts off
This could be a sign that the contactor has melted, leaving the air conditioner with no means to block electricity.
2. AC hums and won’t turn on
When you turn on the AC, you may hear the air conditioner humming, but it won’t fully power on.
3. AC makes a chattering noise
Another sign is a chattering sound coming from inside the air conditioning unit.
Is Your AC Contactor Failing?

ELECTIC HEATERS

Electric heaters are common in many split Hvac systems where it doesn’t get so cold, and also apart of many heat pump systems, which they are often referred to as ’emergency heat’. Electric heaters typically cost more to run than heat pumps, but are necessary when temperatures get so cold outside that the heat pump may not be able to keep up with the temperature.

ELECTROCSTATIC AIR FILTERS

Your air conditioner gives you cool, clean and fresh indoor air during the hot summer days. Thanks to air filters. Air filters play an integral role in keeping the air in your home clean and healthy. Here are the different types of air filters to choose from.
Fiberglass Air Filters
Disposable, most affordable yet with the lowest straining ability of all the types are fiberglass air filters. They work better in protecting your air conditioning system than screening dust and pollutants in the air. If you are using this type of air filter, you might still be prone to respiratory problems.
Pleated filters
Made of polyester fabrics or cotton folds, pleated air filters are effective in filtering dust and other pollutants. Choose those with more pleats because they offer better filtering performance.
Washable Air Filters
Washable air filters cost bigger than disposable types but save you big time in the long run. They can be removed and cleaned, so you don’t need to constantly replace them. Read the manufacturer’s specs on how to maintain filters of this type. Make sure to schedule cleaning ahead of the time. Let it dry completely because using it dump will cause mold growth and bacteria buildup.
Electrostatic Air Filters
Electrostatic air filters use an electrostatic charge to magnet dust and airborne particles then prevent them from being distributed in your home. Some filters of this type are washable while there are also those that aren’t.
HEPA Filters
High-efficiency particulate air filters are best for people with allergies and prone to respiratory difficulties. They are effective in screening contaminants up to 99.97% — a reason why the US Department of Energy recommends this type.
UV Filters
This type of filter uses ultraviolet lights to kill bacteria and viruses in your home. Although less efficient in screening dust and other pollutants, they are good at combatting microorganisms which are also dangerous to your health.
The variation of air filters provides choices for home and business owners in terms of efficiency, health benefits, costs, and maintenance. Call an HVAC professional at A/C ADVICE OF SOUTH CAROLINA for suggestions as to which type of air filter fits your home and comfort needs.

Fiberglass Air Filters

Your air conditioner gives you cool, clean and fresh indoor air during the hot summer days. Thanks to air filters. Air filters play an integral role in keeping the air in your home clean and healthy. Here are the different types of air filters to choose from.
Fiberglass Air Filters
Disposable, most affordable yet with the lowest straining ability of all the types are fiberglass air filters. They work better in protecting your air conditioning system than screening dust and pollutants in the air. If you are using this type of air filter, you might still be prone to respiratory problems.
Pleated filters
Made of polyester fabrics or cotton folds, pleated air filters are effective in filtering dust and other pollutants. Choose those with more pleats because they offer better filtering performance.
Washable Air Filters
Washable air filters cost bigger than disposable types but save you big time in the long run. They can be removed and cleaned, so you don’t need to constantly replace them. Read the manufacturer’s specs on how to maintain filters of this type. Make sure to schedule cleaning ahead of the time. Let it dry completely because using it dump will cause mold growth and bacteria buildup.
Electrostatic Air Filters
Electrostatic air filters use an electrostatic charge to magnet dust and airborne particles then prevent them from being distributed in your home. Some filters of this type are washable while there are also those that aren’t.
HEPA Filters
High-efficiency particulate air filters are best for people with allergies and prone to respiratory difficulties. They are effective in screening contaminants up to 99.97% — a reason why the US Department of Energy recommends this type.
UV Filters
This type of filter uses ultraviolet lights to kill bacteria and viruses in your home. Although less efficient in screening dust and other pollutants, they are good at combatting microorganisms which are also dangerous to your health.
The variation of air filters provides choices for home and business owners in terms of efficiency, health benefits, costs, and maintenance. Call an HVAC professional at A/C ADVICE OF SOUTH CAROLINA for suggestions as to which type of air filter fits your home and comfort needs.

FURNACE CIRCUIT OR CONTROL BOARD

Furnaces use a circuit or control board to perform any number of activities from simply igniting your furnace to alerting you to problems within your unit. This “brain” within the furnace initiates and ends the heating operation, monitors the temperature and watches your furnace for signs of problems.
Types of Control Boards
For a basic furnace, your control board will drive the operation of your ignitor, gas valve and flame sensor. These “simple ignition controls” are most common on older, less efficient units.
Integrated furnace controls, common on many high-efficiency furnaces today, lead the operation of many more activities. These might include the workings of the furnace blowers, as well as the onboard diagnostic system that provides you with troubleshooting information.
Control Board Operation
Typically, your control board kicks on the furnace ignition system (either a spark generator, glow coil or pilot light) after receiving a single from your thermostat that the temperature is too low. Once your ignitor is running hot, the control board gets gas flowing through the burners where that is ignited to start heating your home. Your control board then oversees the furnace’s operation until it receives another signal from your thermostat that your home has reached the appropriate temperature.

HARD START KIT

What does a hard start kit do?
Here’s the bottom line: A hard start kit makes your AC start smoothly and quickly, which reduces damage to AC parts and prolongs the life of your cooling system. But why does an AC have a hard time starting up in the first place? Well, when you turn on your AC, its compressor (the “heart”) powers on to help the system cool your home. However, starting up the compressor requires 4–8 times more electric current than running it. That’s a lot of electrical juice! Over time, this jolt of power, which creates a surge of heat, can damage the compressor and other important AC components—especially if your compressor is already old and worn out. And if your compressor is already worn out, it requires even more electricity to get it to shift from “start” to “run” mode. That’s when a hard start kit saves the day: A hard start kit shortens the startup period of the compressor and reduces the amount of electricity it takes to start your AC. In fact, with a hard start kit, the electrical efficiency of the startup process is as high as 98%, compared to an efficiency of only 50% without one. This efficiency reduces heat and wear on the compressor and other important AC components.OK, so you know a hard start kit helps your AC compressor turn on. But do YOU need a hard start kit?
Do I need a hard start kit?
You should consider installing a hard start kit if you find yourself in one of these scenarios:
Scenario #1: Your AC is already hard starting
If your air conditioner is already hard starting, you should contact a professional ASAP to investigate the problem.
“How do I know if my AC is hard starting?”
You’ll know if you notice these 4 signs:
1. AC starts, then quickly shuts off after you turn it on: This is called short-cycling, and it means there’s something wrong with your compressor.
2. You hear clicking noises when the compressor starts: A clicking sound points to a problem with your compressor, which is using too much power to turn on (hard starting).
3. Your compressor trips your circuit breaker: This means your air conditioner is using too much energy to start, so your circuit breaker trips before any serious electrical damage occurs. This is a symptom of hard starting.
4. Your lights flicker when you turn your AC on: This is normal to a certain extent, but if you notice a dramatic flicker then it means your AC is drawing too much power to start, which is a symptom of hard starting.
Solution: call A/C ADVICE OF SOUTH CAROLINA to investigate the problem. If your compressor motor is struggling to turn on, then a hard start kit could potentially solve the issue.
However, if your compressor is near the end of its life, then a hard start kit may prolong its life for a short time, but shouldn’t be viewed as a long term fix. If your compressor is about to die, talk with your technician about replacing your AC system (it’s usually more cost-effective to replace your whole system rather than buy an expensive compressor).
Scenario #2: You have a new air conditioner
In the past, most single-phase ACs came from the manufacturer with built-in hard start devices, but many newer AC models don’t include a hard start kit.
If your air conditioner doesn’t have a built-in hard start kit (your technician will let you know), you should consider having A/C ADVICE OF SOUTH CAROLINA install one. If your compressor is new and in good shape, a hard start kit could extend its life and help it start even in difficult conditions like low voltage or high head pressure.

HEPA FILTERS

Your air conditioner gives you cool, clean and fresh indoor air during the hot summer days. Thanks to air filters. Air filters play an integral role in keeping the air in your home clean and healthy. Here are the different types of air filters to choose from.
Fiberglass Air Filters
Disposable, most affordable yet with the lowest straining ability of all the types are fiberglass air filters. They work better in protecting your air conditioning system than screening dust and pollutants in the air. If you are using this type of air filter, you might still be prone to respiratory problems.
Pleated filters
Made of polyester fabrics or cotton folds, pleated air filters are effective in filtering dust and other pollutants. Choose those with more pleats because they offer better filtering performance.
Washable Air Filters
Washable air filters cost bigger than disposable types but save you big time in the long run. They can be removed and cleaned, so you don’t need to constantly replace them. Read the manufacturer’s specs on how to maintain filters of this type. Make sure to schedule cleaning ahead of the time. Let it dry completely because using it dump will cause mold growth and bacteria buildup.
Electrostatic Air Filters
Electrostatic air filters use an electrostatic charge to magnet dust and airborne particles then prevent them from being distributed in your home. Some filters of this type are washable while there are also those that aren’t.
HEPA Filters
High-efficiency particulate air filters are best for people with allergies and prone to respiratory difficulties. They are effective in screening contaminants up to 99.97% — a reason why the US Department of Energy recommends this type.
UV Filters
This type of filter uses ultraviolet lights to kill bacteria and viruses in your home. Although less efficient in screening dust and other pollutants, they are good at combatting microorganisms which are also dangerous to your health.
The variation of air filters provides choices for home and business owners in terms of efficiency, health benefits, costs, and maintenance. Call an HVAC professional at A/C ADVICE OF SOUTH CAROLINA for suggestions as to which type of air filter fits your home and comfort needs.

HVAC SEQUENCER

An HVAC sequencer is a small circuit designed to help stabilize circuits and turn switches on and off quickly in an electrical setting. The sequencers are designed to stage the different parts of the electrical equipment so that the appliance does not overload and break the circuits. Many products use the HVAC sequencers to keep engines and other mechanical devices from overheating or exploding.
Identification
An HVAC sequencer is identified by its unique size and shape. Depending on the size of the final product, the sequencers can be different sizes as well. There are usually two different segments to an HVAC sequencer, and they are attached together by a smaller middle piece. They are constructed of tough metal and are usually heavy. HVAC sequencer can be used in things such as electric pumps, furnaces, and motors.
Features
Each type of HVAC sequencer has its own set of features. Some of the most common features, however, are shared among many different kinds of HVAC sequencers. Some common features are the ability to have a few seconds delay between sequences, several different mounting positions, the ability to resist shocks and vibrations, and 24-volt input control. HVAC sequencers are designed for several different kinds of tasks, which makes them have versatility in the features that they offer.

PLEATED FILTERS

Your air conditioner gives you cool, clean and fresh indoor air during the hot summer days. Thanks to air filters. Air filters play an integral role in keeping the air in your home clean and healthy. Here are the different types of air filters to choose from.
Fiberglass Air Filters
Disposable, most affordable yet with the lowest straining ability of all the types are fiberglass air filters. They work better in protecting your air conditioning system than screening dust and pollutants in the air. If you are using this type of air filter, you might still be prone to respiratory problems.
Pleated filters
Made of polyester fabrics or cotton folds, pleated air filters are effective in filtering dust and other pollutants. Choose those with more pleats because they offer better filtering performance.
Washable Air Filters
Washable air filters cost bigger than disposable types but save you big time in the long run. They can be removed and cleaned, so you don’t need to constantly replace them. Read the manufacturer’s specs on how to maintain filters of this type. Make sure to schedule cleaning ahead of the time. Let it dry completely because using it dump will cause mold growth and bacteria buildup.
Electrostatic Air Filters
Electrostatic air filters use an electrostatic charge to magnet dust and airborne particles then prevent them from being distributed in your home. Some filters of this type are washable while there are also those that aren’t.
HEPA Filters
High-efficiency particulate air filters are best for people with allergies and prone to respiratory difficulties. They are effective in screening contaminants up to 99.97% — a reason why the US Department of Energy recommends this type.
UV Filters
This type of filter uses ultraviolet lights to kill bacteria and viruses in your home. Although less efficient in screening dust and other pollutants, they are good at combatting microorganisms which are also dangerous to your health.
The variation of air filters provides choices for home and business owners in terms of efficiency, health benefits, costs, and maintenance. Call an HVAC professional at A/C ADVICE OF SOUTH CAROLINA for suggestions as to which type of air filter fits your home and comfort needs.

REVERSING VALVE

The reversing valve is a somewhat delicate component that has a pipe on the bottom and three on the top. The job of the reversing valve is to change the direction of the flow of refrigerant in your system; this is how the heat pump changes modes between heating and cooling. The valve has two settings within it: one is excited, the other is relaxed. The valve manufacturer sets which state stands for heating and which stands for cooling, so there can be variations between valves. What doesn’t change is that once a state is set for a specific mode – either heating or cooling – it stays that way for the life of the pump.
So how do the pump change modes? As the homeowner, you press a button on your dual-mode thermostat. This cues the heat pump’s solenoid, which is a low-voltage electrical component, to slide the valve in the opposite direction. As the valve slides, the refrigerant also helps the valve to change states between relaxed and excited, or vice versa. Once the valve has slid into the correct position, the mode has changed.
When the Valve Is Stuck
One of the most common problems that can develop with a reversing valve is that is can get stuck. It may become stuck in a specific mode or in between modes. If the valve is stuck due to a bad solenoid, the solenoid can be replaced; but should there be another problem causing the valve to stick, such as leaking refrigerant, the valve will need to be replaced.
Reversing valve repairs should only be handled by trained professionals at A/C Advice Of South Carolina. The valves can be complex, but more importantly, they operate with refrigerant, and you must be certified to handle refrigerant. The trained technicians at A/C ADVICE OF SOUTH CAROLINA can handle all types of heat pump repairs in the upstate of South Carolina, so don’t hesitate to call A/C ADVICE OF SOUTH CAROLINA to if you need help with your heat pump system.

TIME DELAY

The HVAC air conditioner condensing unit compressor should not be started unless the air conditioning or heat pump system is at the static pressure. I have responded to calls where the air conditioner or heat pump condensing unit was not equipped with a delay timer and the air conditioning or heat pump condensing unit was inadvertently started before the pressures were allowed to become static. Often the compressor inside the condenser is locked up, the run capacitor is shot, a fuse is blown, a breaker is tripped, the compressor is damaged mechanically or electrically beyond repair or a combination of any of these things mentioned.
HVAC Condensing Units and Compressor Mechanics – Delay Timers and the Air Conditioner Condenser
If the homeowner is lucky, the only thing wrong is the capacitor or fuse. The run & start capacitor for your compressor can be replaced for a minimal cost compared to replacing a compressor. If the compressor is locked up there is a chance that it can be unlocked (note the word chance). A hard start kit and a good rap with a hammer can sometimes do the trick. If this doesn’t unlock the compressor then you will have to replace the compressor or the air conditioning or heat pump condensing unit. It is often in the homeowners’ best interest to replace the condensing unit.