Top Air Conditioning Mistakes To Avoid

Depending on where you live, your air conditioner is a necessity. It makes sweltering summer heat bearable, which is why you need your AC to stay in good working condition. The best way to accomplish this feat is to avoid the top air conditioning mistakes.  

#1: Ignoring Regular Maintenance

The HVAC unit is an invisible appliance. Unless the unit hiccups or stops working, the average homeowner doesn't think much about it. However, your air conditioner needs regular maintenance, including:

  • New or cleaned air filters, at least, every three months
  • Checking and/or cleaning the evaporator coil once per year
  • Annually testing safety controls
  • Annually checking the unit's blowers, coils, drains, drain lines, fans, and Freon levels

#2: Misusing the Thermostat

The best thermostats are digital and programmable. If yours is neither, it's time to invest in an upgrade. Digital and programmable thermostats are relatively inexpensive, and they can prolong the life of your HVAC unit.

Adjusting the thermostat up or down for comfort is normal. However, it's important to avoid adjusting it by any more than two degrees. If your thermostat is set at 78 degrees and you need to bring it down to 72, take it down slowly two degrees at a time to avoid overworking the unit or overshooting your ideal temperature.

#3: Forgetting to Use Fans

The AC does not replace ceiling fans! These fans help the unit run more efficiently by moving air around the room. They also create an artificial wind chill effect, allowing warmer interior temperatures to feel comfortable.

#4: Closing Ventilation

Some think closing the doors and/or vents in unused rooms will save electricity or improves efficiency. In reality, closing off ventilation and restricting air flow can cause your air conditioner to run less efficiently. Before closing ventilation, consult an HVAC or central air expert to determine whether closing off sections of your home will help or hurt your unit's longevity.

#5: Size Matters

Bigger isn't always better. If you're moving into a new home or replacing the air conditioner in your current home, pay attention to the unit's size. A big unit does not cool faster just because it's big. In fact, an oversized unit can cause problems with humidity, making it difficult to maintain uniform temperatures. As a result, inefficiency becomes an issue and the unit's life span can be dramatically reduced.

A little TLC goes a long way. It can help you avoid the top air conditioning mistakes. If you find yourself questioning how to upkeep or operate yours, ask the experts (such as those from Pompeii's Custom Plumbing) for advice.


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