How to Reset An Air Conditioner When it Isn’t Working

A reliable air conditioning unit can make a big difference on a sweltering summer afternoon. However, air conditioners that stop working when they’re needed can also make a big difference — just not a good one.

Thankfully, depending on the cause of the problem, pressing the AC reset button can help your system return to normal and bring cool air back to your home! If you don’t know how to reset an air conditioner and need help, here’s what you need to know.

How to Reset an AC System

How to Reset a Standard Air Conditioner

To reset a standard air conditioner, start by ensuring the device is turned off. Locate the control panel, which often houses the reset button. Press this button for a few seconds — this is usually enough to restore power and restart the unit. If your air conditioner does not return to normal, check the owner’s manual for model-specific instructions or contact an HVAC professional.

How to Rest a Portable Air Conditioner

When resetting a portable air conditioner, unplug the unit from its power source and wait a few seconds before reconnecting it. This simple action can often reset the air conditioning system effectively. If issues persist, consult the manual for guidance.

Where Is the Reset Button on My AC Unit?

Finding the reset button on an AC unit is easy if you know where to look! For most models, like a window air conditioner or a larger outdoor unit, the reset button is typically located behind the control panel. Safely access this area by ensuring the unit is off and unplugged. The button is sometimes red and is clearly marked, which makes it easy to identify quickly.

Troubleshooting Tips

Why Did My AC Stop Blowing Cold Air?

An AC not blowing cold air can be caused by various issues. A common culprit is the accumulation of dirt and debris in the filters, which obstructs airflow and impedes the unit’s ability to cool air.

Refrigerant leaks also cause a drop in performance, as do faults in the electrical components that manage the operation of the condenser and compressor. It’s worth noting that regular maintenance and timely repairs are vital to prevent such problems from happening in the first place.

Resetting the Thermostat

When an air conditioner stops providing the cool air you need to stay comfortable, try resetting the thermostat. This resets any erroneous settings and can sometimes resolve issues where the AC system is blowing warm air or not reaching the desired temperature. It involves turning the thermostat off, waiting a few seconds, and then turning it back on, which can recalibrate the system.

Checking the Circuit Breaker

A common step in troubleshooting a malfunctioning air conditioning system is to check the circuit breaker panel. If the breaker trips, it will stop the flow of electricity to the AC unit, preventing it from operating. Resetting the circuit breaker by flipping it to the off position and then turning it back on may restore power to the unit. If the breaker frequently trips, it may indicate more serious electrical issues that require professional attention.

Verifying the Power Source

When an air conditioner fails to start, verifying the power source is a no-brainer. Check whether there has been a power outage in your area that would disrupt service to your home — including to the AC units. 

Make sure that the power switch on the unit is in the on position and that the plug is securely connected to the outlet. If the power source and connections are secure but the unit remains unresponsive, further investigation by a qualified HVAC technician may be necessary.

If You’re Having an Air Conditioning Problem, We’ll Have a Solution!

Is your reset air conditioner still not working? Then reach out to All American Heating! Our professional house cooling services will bring cold air back to your home, and our cooling maintenance team will make sure you never have to be uncomfortable on a hot day. 

To learn more and to schedule a service for your cooling system, give us a call.

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