The Goodman air conditioner compressor reset switch is a safety feature that can help restore operation after the system experiences an electrical fault, overload, or thermal protection trip. Understanding how this switch works, where to locate it, and how to perform a safe reset can save time and frustration for homeowners dealing with cooling outages. This guide covers what the reset switch is, when to use it, where to find it on Goodman units, a safe step-by-step reset procedure, common post-reset issues, and preventive maintenance tips to minimize future resets.

What Is The Goodman Air Conditioner Compressor Reset Switch

The compressor reset switch, also known as a high-pressure or thermal overload reset, is a built-in safeguard that interrupts power to the compressor if heat, pressure, or electrical faults cause the unit to overheat or draw excessive current. When the protective device senses abnormal conditions, it trips to prevent damage to the compressor, refrigerant circuit, and electrical components. In many Goodman models, this switch is a small button or lever located on the external condenser or inside the disconnect box. Resetting the switch allows the system to attempt a fresh start once safe operating conditions are restored.

When To Use A Reset

A reset should only be attempted after investigating obvious causes of a shutdown. Use a reset when the system has tripped due to:

Overheating from outdoor heat, restricted airflow, or blocked condenser coils
Electrical faults such as a blown fuse or tripped circuit breaker
Refrigerant restrictions or low refrigerant symptoms, including frost formation
Ice buildup on evaporator coils or unusual cycling

Do not reset if a persistent fault is suspected, if there are signs of refrigerant leaks, or if electrical wiring shows damage. If the unit still won’t start after a reset, professional inspection is advised.

Locating The Reset Switch On Goodman Units

Location varies by model and outdoor unit configuration. Common locations include:

In the electrical disconnect box at the outdoor unit, beneath a protective header
On the side or top of the condenser cabinet, near the service panel
Inside the access panel of some Goodman air handlers or bundled systems

Before attempting to locate the switch, ensure the outdoor unit is powered off at the main service disconnect to prevent electrical shock. When found, the reset switch is typically a small red or black button or a lever that needs to be pressed or flipped to restore operation.

Step-By-Step Reset Procedure

Follow these steps carefully to perform a safe reset:

Power down the unit at the main electrical disconnect and wait 5–10 minutes to allow pressures and temperatures to normalize.
Inspect for obvious issues such as blocked airflow, dirty coils, or debris around the condenser that could cause overheating.
Inspect the electrical panel for signs of damage, blown fuses, or tripped breakers; reset breakers if needed, but do not bypass protective devices.
Locate the reset switch on the outdoor unit’s disconnect box or service panel.
Depress and release the reset button, or flip the reset lever to the reset position, as indicated by the label on the unit.
Restore power at the disconnect and wait several minutes for the system to begin operating. Listen for the compressor and fan to start; observe the outdoor unit for normal cycling.
If the thermostat indicates cooling and the indoor temperature begins to drop, monitor for normal operation over the next 24 hours. If the unit does not restart or trips again, turn off power and contact a licensed HVAC technician.

Safety Precautions Before Reset

Safety should guide every reset attempt. Key precautions include:

Always shut off power at the main service disconnect before inspecting or handling electrical components.
Wear safety glasses and avoid touching wiring, capacitors, or high-current connections when the cover is removed.
Do not operate the unit with the access panel removed for extended periods, and replace all panels before powering up.
Do not bypass electrical protections or perform repeated resets without diagnosing root causes.
If you smell burning or notice melted insulation, turn off power immediately and seek professional service.

Common Problems After Reset

Post-reset issues may include persistent overheating, poor cooling, or rapid cycling. Potential causes:

Airflow restrictions due to dirty filters, obstructed vents, or dirty coils
Refrigerant issues such as leaks or low charge
Thermostat or control wiring faults leading to incorrect signals
Electrical problems outside the unit, including faulty contactors, capacitor failures, or relay issues

If any of these problems are present after a reset, a thorough diagnostic by a qualified HVAC technician is recommended to prevent recurring trips and protect system efficiency.

Additional Troubleshooting Tips

Beyond resetting, consider these proactive steps:

Regularly clean condenser coils and remove debris around the outdoor unit to maintain proper heat rejection.
Replace or clean air filters every 1–3 months to ensure adequate airflow and reducing strain on the system.
Inspect wiring and connections for corrosion or loose terminals; address electrical issues promptly.
Schedule annual maintenance visits to check refrigerant levels, capacitor health, contactors, and thermostat calibration.
Keep the thermostat in a reasonable temperature range to avoid unnecessary cycling and compressor stress.

Preventive Maintenance For Goodman Compressors

Preventive maintenance reduces the likelihood of reset necessity and extends equipment life. Key practices include:

Seasonal coil cleaning and airflow assessment, especially before peak cooling months.
Consistent refrigerant charge verification during professional inspections, using appropriate gauges and procedures.
Electrical system inspections, including fuse blocks, breakers, contactors, and capacitors, to identify wear.
Drainage checks for condensate lines to prevent moisture-related issues that can affect system controls.
Thermostat performance checks and calibration to ensure accurate temperature readings and control signals.

Professional Help And Warranty Considerations

If the Goodman compressor repeatedly trips or a reset is ineffective, contacting a licensed HVAC technician is essential. Recurrent trips can indicate serious issues such as refrigerant leaks, compressor failure, or burnt-out windings. Professional diagnosis can determine if replacements are required or if there are warranty-covered components. Review the unit’s warranty terms for coverage related to compressor and electrical components, and keep documentation from maintenance visits for future claims.