Learning About HVAC Systems And Repair

Only a licensed professional can work on the refrigerant and pump of an HVAC unit, but the owner and operator ought to know how it works. Basic knowledge is enough to find and understand common problems. This is a simple guide to the operation of the HVAC system. It is no secret, and there are common places that get clogged.

The Mechanics of Central Heating

There are several ways to heat a house. Some air conditioners are operated in reverse and run entirely on electricity, but it is more common to use natural gas and a fan. These are the main parts:

*Gas Valve: Any home heating solution that uses natural gas will have a mechanism to turn the gas on or off as well as a spark wire to ignite it. The valve should not leak any gas when it is not operating, and gas will smell if it is not completely burned. A smell indicates a malfunction, and the furnace should not be run.

*Heat Exchanger: Air is normally pulled from the interior of the home, circulated above the burning flames, and then cycled back through the house. If any part of this system is cracked or clogged, then the result could be an impartial burn of the fuel. Natural gas can produce carbon monoxide, which is toxic if inhaled. If you see soot, smoke, or unusual flames then call a professional immediately.

*Blower: This is the fan that blows hot air away from the furnace and through the house ductwork. This is typically the same fan that runs air conditioning if these functions are combined in the same device. If it starts rattling or making other metallic noises, then turn off the machine and seek a repair person.

*Air Filter: The fan creates a vacuum that pulls air from the house into the HVAC unit. This air first passes through a filter that cleanses the air to preserve the HVAC unit. If the filter gets clogged, it will create too strong of suction and maybe break the filter. This is bad for your lungs and also the equipment. Check your filter regularly.

Getting To Know The Cooling System

Making air colder is a bit more complicated than making it hotter. Most AC units depend on a four-step device that compresses refrigerant, cools it, and then blows warm air over very cold refrigerant to cool the air. Air conditioning also condenses water out of warm air, and draining condensation is an important system. These are the four main parts:

*Compressor: An electric motor drives a pump that turns a refrigerant into a hot but very compressed liquid. This liquid dumps heat and then becomes a coolant as it decompresses. The motor is the only working part in the refrigerant cycle. If it wears out, it will become less efficient and then will stop working. It can be replaced.

*Condenser: Refrigerant that runs through the compressor is hot and needs to cool off. The first heat exchange coil dumps heat to the outside air. As the refrigerant cools down, it becomes a liquid that can then be decompressed to act as a refrigerant. Since the condensing coils need to be in contact with the outside air, any dusty buildup can ruin its efficiency.

*Expansion Valve: Once the refrigerant is a less hot liquid, the expansion valve acts as a barrier to flow that greatly reduces the pressure. If this valve malfunctions, then the house may receive no cool air, or there may be a frosty section on the AC unit. Only a technician can repair it.

*Evaporator: Refrigerant that suddenly changes its pressure becomes very cold due to decompression. The pressure in the evaporator is much less than the rest of the piping. It is a winding coil that comes in contact with household air and then makes it cold. If it does too good of a job, it might be covered with frost which acts as an insulator.

All these parts are controlled by a thermostat. The thermostat controls the electricity to the compressor and possibly to the expansion valve if it can be remotely adjusted. The thermostat can be given wrong settings, and this is the most likely cause of a malfunction. Thermostats also sometimes run on batteries that can go dead after so many years. A professional HVAC system technician can sort all these issues out as most are common.

Avoid Hot Sticky Conditions By Taking Care Of Your Air Conditioner

Humidity in the air is just a fact of life, but many people hate it. It causes sweat to drench shirts for hours and the skin to feel sticky. The hot, humid climate is oppressive at times. People living on this beautiful island understand that they will never experience winter or spring here, and some have even suffocated due to the overwhelming wet conditions and high temperatures.

The way some residents battle these conditions is a matter of choice, and many choose to invest in high-quality air conditioning systems. That begs the question of what does one do when the air conditioner fails to operate properly. How does one understand and solve such problems? The purpose of this article is to address the ten most common problems with air conditioners and the best solutions.

1. Blocked Grills –

Air conditioner problems are created when the grills through which air passes become blocked. It is simple enough for most people to remedy this issue. Even those with no background in air conditioning repair, this is an easy fix, but you need to know how to go about it.

Being careful about the air conditioner’s electrical parts, carefully wipe the motors and fins to ensure they are free of debris. Keep these free of moisture while going through this process.
While removing the top grill, take special care, since it could have fan wires attached to it. Cleaning this grill could be the simplest thing you can do to fix a blocked grill.

2. Failure to Perform –

Sometimes, your air conditioning system might just fail to perform at all. It just stops working, and it is hard to determine what is wrong.

Fixing this could be as simple as locating the circuit breaker or fuse box associated with the air conditioning unit and either replacing the fuse or resetting the breaker.

3. Exterior Fan Problems –

The reason there is an exterior fan associated with the air conditioner is to provide the proper transfer of heat inside the home to the outdoors.

If this outside fan is not operating properly, the proper transfer of this heat cannot be expected to happen. Not enough air will be transferred, and possible damage to the compressor could occur.
To apply a remedy to this, you may be required to replace the capacitor or motor.

4. Frozen Coils or Drainage Problems –

A couple of other problems that can occur with the air conditioner system is frozen coils and drainage issues. These can be frustrating problems to have, and at times, the unit may be totally blocked, which can render the cooling system completely ineffective.

It should be a routine practice to inspect the drain and ensure that it is not blocked or clogged.

When coils and filters become dirty, they can be rendered ineffective, and the entire air conditioner will not work the way it should. This can negatively affect the compressor and create a major problem.

5. Sensor Issues –

The reason for the thermostat sensor is to measure the air temperature as it moves through the coil. When the sensor is dislocated from its proper position, the air conditioner might only work sporadically, making it an unreliable appliance for the user.

The best way to fix this problem is to have it checked out by a professional who can replace it in the appropriate position. The remedy is typically easy to apply.

6. Failures That Pertain To Electrical Controls –

To ensure that your air conditioner is functioning properly, it is important to make sure that all electrical components are operating the way they should.

If the air conditioning system is too large, then the electrical systems typically do not work as they should. Instead, they will switch off and on continually throughout the day without cooling the home effectively. The result is that the usual wear on the fan controls and compressor is increased, and that leads to major problems.

7. Foul Odors –

Another common problem with the air conditioner comes from bad odors. As the system goes through its normal cycles of cooling and warming, moisture can collect on it, and that can cause nasty odors to develop.

This problem can be eliminated by simply ensuring that the moisture evaporates as it should, and that will prevent weird odors from ensuing. A mixture of soap and water can also be poured down the drain to help correct this problem.

8. Fan Belt Wailing Noise –

Another problem that can occur with an air conditioner is when the fan belt begins making unsettling, loud noises.

The best remedy for this problem is to return the fan belt to its proper position.

9. Refrigerant Leaks –

When the air conditioner is leaking refrigerant, or it was not charged properly when it was installed, it will soon run low of refrigerant.

This is when you should call in the professionals to solve the issue. You don’t want to try to fix it yourself because adding refrigerant can be risky business.

10. Installation Problems/Size –

It is important that the air conditioner is the right size for your home. One that is too large or too small will eventually cause problems while using more energy than it should.

To make sure that your home comfort system will work properly for your home, ensure that the right size is installed. Doing so will save a lot of money and heartache during hot weather conditions.

Conclusion

The above are some of the most common issues with air conditioners, but they are not the only ones you may have trouble with. If you do not recognize your air conditioning problems in this list, be sure to contact an HVAC contractor for a professional opinion. Otherwise, you might risk further damage to the system. By contacting a professional, you will be saving both time and money taking care of the issue.

Direct Heating & Cooling

AIR CONDITIONING

Direct-Heating-and-Cooling-Air-ConditionerAn air conditioning unit you can count on makes all the difference in your comfort on those hot days. Your air conditioner will not only keep you cool, but create an indoor climate that promotes good health. Direct Heating and Cooling provides comprehensive services for all air conditioning systems, from installation of new units to maintenance and repair service for your existing AC system.

DUCT CLEANING

The dust and debris lurking in your duct system can create dirty indoor spaces and pollute the air you breathe. Direct Heating and Cooling performs duct cleaning to eliminate these issues. Cleaning your ducts is a step in the right direction towards improving your indoor air quality.Direct-Heating-and-Cooling-before-after-duct

AIR QUALITY

The quality of air you breathe inside your home makes a big difference to your comfort level as well as your health. Direct Heating and Cooling offers a number of products and services which are designed to fill your home with cleaner, quality air. We will assist you in diagnosing the air quality issues affecting your home and determining which solutions will work best for you.

HEATINGDirect-Heating-and-cooling-thermometer

Stay warm on the coldest of days with a reliable heating syste
m. We provide quality installation for new furnaces and heating systems, designed to help your new unit perform at its best. We also offer maintenance services which keep your system in shape, and in the event you experience trouble with your heating system, you can count on Direct Heating and Cooling for skilled repairs.