The 7 Most Common Mistakes That Are Damaging Your Air Conditioner (and How to Avoid Them)
An air conditioner can last more than 10 to 15 years…
But many units fail prematurely due to simple mistakes that most people don’t even know they’re making.
At Comfort Technical Solutions (CTS) , we see these problems every day in the systems we repair. That’s why today we’re sharing a clear and simple guide to help you protect your investment and keep your AC running like new.
1. Failure to perform preventive maintenance
This is the most common and most costly mistake.
Maintenance-free:
AC consumes more electricity
The engine wears out prematurely.
The system loses cooling capacity
The risk of further damage increases
Maintenance every 6 months is ideal — especially in Florida.
2. Using the air conditioner with a dirty filter
A dirty filter blocks airflow and forces the system to work twice as hard.
Consequences:
Less cold air
Increased energy consumption
Possible freezing of the unit
Change or clean your filter every 30 days if you have pets.
3. Ignore strange noises or vibrations
If the air sounds different than normal, something is wrong.
A small noise today could become a damaged compressor tomorrow.
Don’t ignore it—call us before the damage is irreversible.
4. Cover the outdoor condenser
Many people place:Plants,
Furniture,
Boxes
, Shade structures, or improvised structures
This blocks airflow and causes the unit to work under overload.
Leave at least 2 feet of free space around the condenser .
5. Setting the thermostat too low
Setting it to 65°F will not cool it down any faster.
It only puts more strain on the system and increases your electricity bill.
The best recommended temperature:
72°F – 75°F
6. Failure to check for refrigerant leaks
If you need to “recharge the gas” every year, that’s NOT normal.
It means there’s a leak.
Working with low refrigerant:
Freeze the unit
It damages the compressor.
It reduces the system’s lifespan
At CTS we help you detect and correct leaks correctly.
7. Buying equipment that is too small or too large
An incorrectly sized team causes more problems than it solves.
If it’s too small: it never cools enough.
If it’s too large: it turns on and off constantly, wearing out faster.
Before you buy, consult with professionals.
Conclusion: Take care of your system and your wallet
Avoiding these mistakes can save you hundreds or thousands of dollars in premature repairs.
And if you already notice malfunctions, poor cooling, or strange noises, it’s best to have it checked before more serious damage occurs.
At Comfort Technical Solutions (CTS) we are here to help you keep your AC in its best condition all year round.
(813) 409-0694
Professional and reliable service
. Smart comfort starts here.




