Whether your AC isn’t cooling or it’s stuck on the same temperature, sometimes a simple reset is all it takes to fix the issue. If you’re wondering “how do you reset an air conditioning unit?”, you’re in the right place.

Resetting your air conditioner can resolve many problems, including sensor glitches, minor power surges, and control board freezes. In this comprehensive guide, the experts at Riverside Comfort Care walk you through the entire process—from safety checks to step-by-step instructions for various types of AC systems.

Why Resetting an AC Unit Is Sometimes Necessary

Before diving into the how-to, let’s cover why resetting is even helpful. Your AC system might need a reset if:

• The power was disrupted (e.g., lightning strike or outage)
• The thermostat isn’t responding or syncing properly
• You’ve recently replaced a component like a capacitor or control board
• The unit is short-cycling (turning on and off too quickly)
• The system seems frozen or stuck in an incorrect mode

In many of these cases, a reset will force your AC’s internal control board to reboot and reinitialize.

Safety First: Precautions Before Resetting Your AC

Working with HVAC equipment means you need to prioritize safety. Here are a few precautions:

• Turn off the power at the thermostat and the electrical breaker
• Wait at least 5 minutes after powering down before attempting a reset
• Don’t attempt a reset if your unit is physically damaged or leaking refrigerant—call a pro
• Never open sealed electrical panels unless you’re trained to do so

When in doubt, call the professionals at Riverside Comfort Care for same-day service.

How to Reset a Central AC Unit (Split System)

Most central air systems have a reset procedure built in. Here’s how to do it safely:

Step 1: Turn Off the Thermostat

Go to your wall-mounted thermostat and turn the system completely off.

Step 2: Locate the AC Breaker

Find your electrical panel and look for the circuit breaker labeled “AC” or “Air Conditioner.”

Step 3: Flip the Breaker Off

Turn off the breaker to cut power to the outdoor unit.

Step 4: Wait 5–10 Minutes

This allows internal capacitors and sensors to reset.

Step 5: Turn the Breaker Back On

Restore power to the AC by flipping the breaker back to the “on” position.

Step 6: Turn Thermostat Back On

Switch your thermostat back to “cool” mode and set it to a temperature below current room temp.

Your unit should now cycle on normally.

How to Reset a Window AC Unit

Some window units have built-in reset buttons. If yours does, follow these steps:

1. Unplug the unit from the wall outlet
2. Wait 5 minutes to discharge power
3. Press and hold the reset button (if available) for 3–5 seconds
4. Plug the unit back in and turn it on

If your window unit doesn’t have a reset button, unplugging it and plugging it back in after a brief wait usually works.

How to Reset a Heat Pump System

Heat pumps often have a high-pressure switch or control board that needs resetting.

Manual Reset:

1. Turn off the system at the thermostat
2. Turn off the breaker to the outdoor unit
3. Wait 5–10 minutes
4. Flip the breaker back on
5. Turn on your thermostat

Control Panel Reset (if available):

Some heat pumps feature a small red reset button near the compressor. If so:

• Press the button once
• If it clicks, your system has reset

For help with heat pumps, contact our AC repair specialists in Fort Smith and beyond.

Resetting vs. Repairing: Know When to Call a Pro

While resetting can fix some issues, others require a technician:

• Unit constantly trips breaker
• Electrical smells or buzzing sounds
• AC won’t turn back on after reset
• Thermostat is unresponsive

A reset won’t fix major problems like refrigerant leaks, bad capacitors, or compressor failure. Let the pros at Riverside Comfort Care diagnose deeper issues.

How to Prevent the Need for Constant Resets

Regular AC maintenance reduces the likelihood of unexpected shutdowns and resets. Here’s how to keep your unit running smoothly:

• Change filters every 30–60 days
• Schedule seasonal HVAC tune-ups
• Keep the outdoor condenser clean and clear
• Use a surge protector to protect your unit from power surges

Still Wondering How to Reset an Air Conditioning Unit?

Don’t risk damaging your equipment—if you’re unsure or your system still isn’t working, get help from trusted HVAC technicians.

Call Riverside Comfort Care Today

📞 (479) 123-4567
🌐 Book a service online

Serving Fort Smith, Van Buren, Alma & Greenwood, AR

Our friendly team proudly provides AC repair, heat pump resets, installations, and diagnostics throughout:

• Fort Smith, AR
• Van Buren, AR
• Alma, AR
• Greenwood, AR

Need fast service? We’re ready 24/7 for emergency calls.

Helpful Resources:

• ENERGY STAR – Central AC Maintenance
• Energy Saver – Thermostat Settings
• Consumer Reports – AC Troubleshooting