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“Why Is My Home’s Air Conditioner Constantly Running?” [FAQ]

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acIt’s strange. Your air conditioner has been running non-stop, and it’s struggling to cool your home (so no one feels comfortable).

There are several problems that could cause this.

To simplify things for you, we’ll first focus on what you as a homeowner can do to fix this problem.

If none of these solutions work, then we’ll show you a few problems you’ll need an air conditioning technician to fix.

3 things you can do that can solve this problem

Before calling an air conditioning tech for help, try these 3 things:

1) Check the air filter and change if it’s dirty

Is the air coming from your supply vents very weak? Your air filter may be dirty and blocking air from returning to the AC. The small 1-inch pleated filters are especially notorious for doing this. If this is the type of air filter you have, consider a different type.

Check out our air filter-buying guide.

2) Open any closed or blocked air vents

Some homeowners close air vents in unused rooms to save money. Also, sometimes furniture or drapes accidentally block your vents. Make sure yours stay unblocked and opened. Otherwise your air conditioner may struggle to get enough air to redistribute into your home. 

Plus, closing vents puts stress on your duct system, which can cause it to leak air.

3) Clean your outside air conditioning unit

Most central air conditioners are split systems, meaning there’s an inside and outside unit. The inside unit uses cold refrigerant to absorb heat from your air. That refrigerant flows to the outside unit, which disperses the heat from that refrigerant so it can absorb more heat.

But if the outside unit is dirty, it can’t disperse the heat (dirt is an insulator). That means your AC can’t absorb more heat to cool your home’s air. That’s why the AC is struggling to cool your home.

If your unit has not been cleaned in a year, read our guide on how to clean your outside air conditioner like a pro.

Problems you need an AC technician to fix

If the above 3 things do not help, your problem may be more technical and require a pro’s help.

Here’s a brief overview of a few things an air conditioner technician will look for when they come to your home. (Note: Technicians will also check the above 3 things if you didn’t.):

  • Dirty indoor evaporator coil (can cause coil to freeze over and restrict airflow)
  • Low refrigerant (if you’re low, you probably also have a refrigerant leak that needs repairing)
  • Faulty metering device (prevents the refrigerant from getting cold enough)
  • Faulty blower motor (prevents the AC from blowing out enough air)

Do you live in New Jersey and need a pro’s help?

Couldn’t solve the problem yourself? If you live in New Jersey, contact Air Professionals for a quick air conditioning repair. Don’t worry, you’ll get a 1-year warranty on our work!

Also, if the repair turns out to be costly, you may want to know ahead of time if you should repair or replace your air conditioner.

Air Professionals is a whole-home comfort company serving New Jersey homeowners. Contact us for more information on how we can help improve your home’s comfort.