We have all been there. It’s the dead of summer in Texas. The sun is scorching hot and you’re covered in sweat. Your air conditioning is your only savior. But — oh no! Your air conditioner stopped working. What are you going to do?
While HVAC services can troubleshoot your AC problems, isn’t it best to avoid this scenario altogether? But not every average Joe knows how to work their AC unit.
That’s why it’s useful to recognize the most common HVAC problems before your air conditioner requires repairs.
From strange noises to warm air, here are the 7 most common HVAC problems.
Whether your AC unit makes weird noises or doesn’t blow cold air, here are the most common problems homeowners face with their AC unit.
The wiring and the terminals provide basic HVAC system function and help you understand your HVAC system, such as knowing what temperature it’s at. When your HVAC system is damaged, one of the first signs you’ll notice is corrosion in these areas.
Since its basic functions are damaged, your air conditioner will likely go on and off. Open the system and check the wiring. If the wiring is damaged, call an HVAC technician.
Fortunately, this fix is easy and affordable. All the HVAC professional needs to do is replace the faulty wires. But be sure you call HVAC repair immediately. Failure to replace the wiring will result in fan and compressor failure.
Refrigerant is necessary for your AC to function. Refrigerant is a compound in gaseous or a fluid state. It helps absorb any heat in the atmosphere. When teamed with the compressor and evaporator, it further helps to cool your house.
With this being said, your air conditioning unit should never leak refrigerant. If the leaking persists, your air conditioner won’t function properly and won’t cool your home. The compressor will also get hot and will wear out.
Call an HVAC technician to take a look at the refrigerant in your HVAC system.
They will fix the leak and will find the issue.
In addition to leaking refrigerant, you may also struggle with leaking water.
Leaking water can be the cause of different problems, but the main issue is clogged drains.
Prevent any leaks by consistently checking and cleaning out the drains. Clean drains by pouring in bleach to break up the buildup.
Do you maintain your drains but your HVAC system is still leaking water? This can also be due to the collector box, heat exchanger and evaporator drain.
Either way, call an HVAC technician when you notice a water leak. The HVAC repair professional will find the issue of the leak and will fix it.
There are constantly dust, debris, dirt, and other invasive particles circulating throughout your home. Your air filter helps lock them in so you’re not breathing them in. Your AC unit does this with the help of air filters.
But after about a month, the air filters look really dirty. That’s because there’s so much dust and debris clogging the filter. Your air conditioner will work harder to lock in the debris, causing your air conditioner to perform poorly.
This means a dirty air filter doesn’t only refrain from cooling your home but you’re also wasting energy.
Replacing an air filter is the easiest task. Just take out the old air filter and place the new one in. Air filters are cheap and sometimes even free.
Do you regularly change your air filter but notice your AC unit is still working harder than it should?
It may be time to give your HVAC system a thorough cleaning. A dirty AC unit doesn’t only limit the system’s function, it also shortens the unit’s lifespan.
How do you clean your AC unit? Start by hosing down the condenser unit (but make sure the unit is turned off first). Then, clean the evaporator coil. Use cleansing agents recommended by your HVAC technician.
Other important cleaning steps include cleaning debris off of the compressor, hosing the fins, cleaning the evaporator drain and cleaning the unit exterior.
You can always ask your HVAC technician to clean the unit first, giving you advice along the way.
If your AC unit is consistently on, you may not notice issues with the blower.
When you turn off the unit, the blower should also turn off. But what if the blower stays on?
This is likely a problem in the fan relay mechanism. Unfortunately, this will require a repair that’s best done by an HVAC technician. In serious cases, you’ll have to replace the blower.
In less severe cases, your thermostat may be too hot, causing a delay in the system. Try setting the temperature to the coolest setting and testing the air. You could have also left the switch on and never realized it.
This is the most famous example of AC unit issues. When your unit makes unfamiliar and loud noises, this signals unit damage. The most common sounds are squealing, rasping, and grinding noises.
These noises signal different issues, but the most common issue is the belts and bearings are wearing out. In severe cases, these noises signal an air circulation issue.
Either way, you need to call an HVAC technician. They can easily replace any worn belts or bearings. They can also diagnose and repair another problem if there’s another cause.
If you don’t service your unit when it makes loud noises, your whole system could fail.
We understand how hot Texas can get. That’s why we’re here to ensure your house always stays cool.
If you’re experiencing one or more of the most common HVAC problems, we can help. Contact us today. The faster we can service your system, the sooner you can have cold air again.