Aside from the unit’s age, a few other signs can signal it’s time to replace your air conditioner, according to Energy Star. Consider how frequently you make repairs, whether your energy bills are rising or if your home is too hot in the summer.
“How long are you going to live in the house, and what are your utilities like?” Hamlin says. “If the unit is older and the repair is a couple hundred dollars, it may not be worth fixing.”
If you do buy a new, energy-efficient A/C unit - which costs $3,600 to $7,200 - Energy Star estimates a 20 percent savings on heating and cooling costs.
On the other hand, some HVAC technicians say if it’s not broken, don’t fix it. If your system shows no leaks and your energy bills are low, Hamlin sees no reason to replace it.
To gauge the condition of your existing A/C, schedule an inspection with an HVAC technician.
Have you faced the decision to repair or replace an A/C? Tell us about it in the comments below.
Editor's note: This is an updated version of an article originally posted on May 16, 2014.