Many homeowners rely on their Rheem air conditioner for reliable cooling. Sometimes, a unit may need a reset due to power outages, malfunctions, or error codes. Understanding where to find the Rheem air conditioner reset button, how to use it, and what to do if resetting doesn’t work can help restore comfort fast and avoid expensive service calls.
Quick Reference: Rheem AC Reset Button Facts
| Aspect | Details |
|---|---|
| Typical Button Location | Close to copper line set or inside control panel |
| Looks Like | Red or yellow button, often labeled “Reset” |
| When To Use | After power outage, error code, or AC not starting |
| Should You Press Often? | Only after troubleshooting root cause |
| What If It Doesn’t Work? | Check thermostat, breaker, and contact HVAC professional if needed |
What Is The Rheem Air Conditioner Reset Button?
The Rheem air conditioner reset button is a built-in safety feature that allows the system to shut down and restart itself after certain faults or system errors. It is designed to protect the compressor and other key components from damage when problems such as power surges, overheating, or circuit interruptions occur.
Activating the reset button can help resolve minor issues causing your Rheem AC unit to stop working, but it’s important to understand its limitations. It is not a cure for serious malfunctions and should only be used after checking for underlying causes.
Why Might You Need To Reset Your Rheem Air Conditioner?
- You’ve experienced a short power outage or brownout.
- The air conditioner is blowing warm air unexpectedly.
- An error code is displayed on the thermostat or control board.
- There is no response when adjusting the thermostat.
- The unit repeatedly stops and starts (short cycling).
In these circumstances, using the reset button can often restore operation as long as there is no major equipment fault.
Locating The Rheem Air Conditioner Reset Button
The location of the reset button on a Rheem air conditioner will depend on the specific model. Most frequently, it is found:
- Near the outdoor condenser unit, close to where the copper refrigerant lines enter the unit housing.
- Behind a removable panel on the control board or near the compressor access door.
- Sometimes on the thermostat for modern Rheem smart systems.
The button typically appears as a small red or yellow protrusion. Look for signage or a small label marked “RESET.” If you have difficulty finding it, refer to your Rheem air conditioner user manual, as diagrams and exact locations vary.
Models Without A Traditional Reset Button
Some newer Rheem models may not have a physical reset button. Instead, they reset via power cycling or using a programmable thermostat. If you don’t see a reset button, follow your model’s specific reset procedure as outlined in the manual.
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How To Reset A Rheem Air Conditioner Using The Reset Button
- Turn Off The Thermostat: Set the thermostat to “off” to prevent the system from calling for cooling during reset.
- Locate And Press The Reset Button: Find the button and press it firmly for three to five seconds, then release. It may click or spring back.
- Wait For The System: Allow two to five minutes for the unit to reset fully. Listen for noises that indicate the system is rebooting.
- Restore Thermostat Operation: Turn the thermostat back to “cool” and set the desired temperature.
- Observe Operation: Monitor the system for a few minutes. If the compressor starts up and cool air returns, the reset was successful.
Alternative Reset Procedures For Rheem Air Conditioners
If your Rheem unit does not have a physical reset button, or if pressing it does not solve the problem, use the factory reset procedure:
- Turn off system power at the breaker box. Locate your home’s main electrical panel and shut off power to the AC unit.
- Wait for at least 60 seconds.
- Restore power. Turn the breaker back on. Wait as the system reboots.
- Restart the thermostat. Set to cool and adjust the temperature to desired level.
This process clears some fault codes and is the equivalent of a soft reset on units without a dedicated reset button.
What To Do If The Reset Button Does Not Work
If your Rheem air conditioner still doesn’t start after resetting, consider the following additional troubleshooting steps:
- Check The Circuit Breaker: Ensure the dedicated AC breaker has not tripped. Flip it off and on to be sure.
- Inspect The Air Filter: Dirty filters can restrict airflow and cause the system to overheat and shut down. Replace if needed.
- Confirm Thermostat Settings: Old batteries or incorrect mode selection could prevent operation.
- Look For Error Codes: Many newer units will show diagnostic lights or codes. Refer to your manual for specific meanings.
- Listen For Unusual Noises: Clicking, buzzing, or grinding can signify a mechanical issue that requires professional service.
If you’ve tried all these steps and the AC won’t reset or start, call a licensed HVAC technician for diagnosis. Avoid repeated resets, as this can strain sensitive components.
Common Issues Triggering The Reset Button On Rheem Air Conditioners
| Issue | Symptoms | Recommended Action |
|---|---|---|
| Tripped Breaker | AC silent, no response | Reset breaker and retry system |
| Overloaded Circuit | Breaker trips repeatedly | Check for other high-amp devices on circuit |
| Dirty Air Filter | Warm or weak airflow, system overheat | Replace filter and reset |
| Thermostat Malfunction | No response to setting changes | Replace batteries, check wiring |
| Frozen Coils | Ice on coils, reduced cooling | Turn off, let melt, check airflow, reset |
Many of these issues are straightforward to check and resolve without specialized tools.
Safety Tips When Using The Rheem Reset Button
Exercise caution when accessing any electrical equipment. Always:
- Turn off power at the breaker before opening access panels.
- Wear gloves and protective eyewear.
- Avoid using excessive force when pressing the reset button.
- Do not attempt repairs on wiring or internal components if untrained.
- Consult a professional for repeated trips or uncertain faults.
Rheem Air Conditioner Reset Button Versus Other Brands
Rheem’s reset system is similar to most other major brands, like Carrier, Trane, or Lennox, typically using a soft reset (button) or a hard reset (breaker). What sets Rheem apart is a focus on clear user manuals and accessible reset points for most residential models. Modern digital Rheem thermostats may offer additional “reset to factory settings” options through the interface.
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When To Call A Professional
If your AC fails to function normally after a reset, or if you see evidence of burning, smell electrical odors, or notice water leaks, contact a licensed HVAC technician immediately. Persistent tripping of the reset button can signal:
- Compressor or capacitor failure
- Electrical short circuits
- Low refrigerant (freon) levels
- Fan motor issues
Addressing these issues promptly can prevent costlier breakdowns.
Frequently Asked Questions About The Rheem AC Reset Button
- Is it safe to use the reset button more than once? Yes, but if the issue recurs, further diagnosis is needed.
- Will resetting the button erase my thermostat settings? No, thermostat programs are preserved when resetting the AC unit.
- Does every Rheem model have a reset button? Not all. Some use digital reset procedures outlined in the manual.
- How do I know if the reset was successful? Cool air should resume and error codes (if any) should disappear.
Maintaining Your Rheem Air Conditioner To Prevent Reset Issues
To avoid frequent resets or malfunctions, follow these best practices:
- Change air filters every one to three months during cooling season.
- Schedule annual professional HVAC maintenance to check refrigerant and electrical systems.
- Clear vegetation from around the outdoor condenser to maintain airflow.
- Keep thermostat batteries fresh and settings current.
Proactive care extends system life and strengthens its safety mechanisms—including the Rheem air conditioner reset button.
Resources For More Information On Rheem AC Resets
- Official Rheem Product Manuals And Support
- Rheem Air Conditioner Products Overview
- Energy.gov: Common Air Conditioner Problems
Review your unit’s specific manual or the manufacturer’s online knowledge base for model-specific reset instructions. Many problems can be resolved quickly and safely with proper guidance.