How to Reset an Air Conditioner That Isn't Working
Just like with any large appliance or electronic equipment, sometimes resetting it is the answer to a developing malfunction. But resetting AC units is a bit more involved—and potentially much more dangerous—than resetting your computer or refrigerator. This step is a common fix if the AC unit circuit breaker flips or if your AC is blowing warm air when the thermostat is set to cool. In this step-by-step guide, we'll walk through the three steps of how to reset an AC unit while staying stay and aware. But if you don't feel comfortable resetting the unit or it doesn't solve the problem, reach out to The HVAC Gurus for a quick, convenient service call.
Powering Down Your AC Unit
The first step in how to reset your AC is powering it down. Not only does this protect the unit itself, but it also protects you. First, turn off the AC from your thermostat or set it to neutral venting instead of cooling. Next, open your home's circuit breaker panel and flip the AC breakers for both the inside and outdoor units. You don't just want to turn them off—you want to break the electrical connection when you reset AC units.
Finding the Breaker Box
If you're not sure where your breaker box, the most likely location is against the exterior wall of your garage. It should be a flat gray box. If you can't find it, look around the exterior of your home for the electrical meter. Chances are that the panel is on the other side of the wall inside your home; this may be the basement if you're on a hill or inside the master closet if you live in a condo.
Finding the Reset Button
Next, locate the reset button on your outdoor AC unit. These buttons are small, often colored red, and usually sit low along the base of the unit. If it's not immediately visible, consult your manual to see if it will tell you the location. However, if you're not familiar with your unit, don't try to open any of the paneling to look for it. Instead, call in an expert who is familiar with your AC unit model and how to safely power it down.
If you can find the button, hold it down for five seconds to reset your unit.
After it resets, you can flip the circuits back on. Depending on your unit, you may want to wait between 15 and 30 minutes after resetting the AC, as this can allow the unit to cool down and give the reset a better chance of working. Then make sure the circuit breakers are flipped to the right position and turn your thermostat back on. Set it to a cooling temperature and listen for the sound of an AC cycle. If you hear the AC whirring and soon feel cool air blowing out of the vents, the reset was a success.
If a Reset Isn't Working, Rely on the Experts!
Sometimes, a reset doesn't provide the solution you need, or you may need a bit of help resetting your unit. While knowing how to reset an AC unit is helpful, it can't help with fried electrical components, coolant leaks, or worn motors. Your unit may refuse to power back on, or it may continue to only blow warm air. If that's the case, it's time to call an expert instead of troubleshooting the problem further. The certified HVAC experts with The HVAC Gurus will answer your call and schedule a quick service appointment to find and repair the issue.
Featured Image Credit: The Toidi/Shutterstock