The Goodman furnace reset button is a safety feature designed to restart a furnace after a fault temporarily halts operation. Understanding where the reset button is located, when to use it, and what underlying issues may trigger a reset helps homeowners troubleshoot minor problems safely before calling a technician. This guide explains how the reset button works on Goodman gas furnaces, how to perform a safe reset, and what steps to take if the button trips repeatedly.

What Is The Goodman Furnace Reset Button?

The Goodman furnace reset button is typically a small button that acts as a manual reset for safety switches such as the pressure switch or limit switch in the furnace system. It is commonly red or black and pops out when a fault is detected, signaling the control board to stop the furnace to prevent unsafe operation. Pressing the reset button re-enables the control once the underlying fault has been addressed. It is important to note that the reset does not cure the root cause; it clears the fault flag so the furnace can attempt to restart.

On many Goodman models, the reset button is integrated into or near the pressure switch inside the blower compartment or behind a service panel. If the button is not obvious, consulting the owner’s manual for your specific model or contacting a licensed HVAC technician can help locate it quickly without forcing access to risky components.

Where To Find The Reset Button On A Goodman Furnace

Locating the Goodman furnace reset button involves accessing the furnace interior safely. Always turn off power to the unit at the service disconnect or main panel before removing any panels. In most Goodman gas furnaces, the reset button is near the pressure switch, which monitors the venting and air pressure inside the combustion chamber. Look for a small, protruding button on the switch itself or a nearby module labeled “Reset.” If you cannot locate it, check the owner’s manual, model-specific wiring diagrams, or contact customer support for your model.

Open the front access panel and locate the blower compartment to access internal components.
Identify the pressure switch with hoses connected to it and a small reset button or tab.
Some models place the reset button on the blower door or adjacent to the inducer housing; in others, it is inside the cabinet behind the panel.
Never force panels or components; if the button is not visible, refer to service documentation or a professional technician.

When Should You Use The Reset Button?

The reset button should be used only after the fault that caused the shutdown has been addressed or cleared. Typical conditions that trigger a reset include overheating, flame rollout warnings, blocked venting or condensate drainage, a faulty pressure switch, or a restricted air filter leading to improper airflow. If the furnace shut down due to these or similar faults, a reset may allow it to restart once the issue is resolved. If you notice the button trips repeatedly, it indicates an ongoing problem that requires further inspection beyond a simple reset.

Before attempting a reset, ensure there is no gas odor, smoke, or unusual heat around the furnace. If you detect any strong gas smell, immediately evacuate and call the gas utility or emergency services. If the unit resets and starts but shuts down again quickly, stop trying to reset and seek professional service to diagnose the fault safely.

Step-By-Step Reset Process For Goodman Furnaces

Turn off power to the furnace at the service disconnect or the main electrical panel and switch off the thermostat to prevent calls for heat during the reset process.
Wait about 60 seconds to allow electrical and gas components to settle, reducing the risk of a immediate re-trip.
Locate the Goodman furnace reset button near the pressure switch or on the control module as described in the manual for your model.
Press and hold the reset button firmly until you hear a click or feel a noticeable reset action indicating the switch has cleared the fault.
Release the button and restore power to the furnace, then set the thermostat to heat and wait for the furnace to begin its startup sequence.
Observe the start-up cycle: inducer begins, gas valve opens, burners ignite, and the blower turns on after a brief delay. Do not intervene during ignition.
If the furnace starts and runs normally for at least a few minutes, monitor for any unusual noises, smells, or frequent cycling. If it shuts down again, shut off power and call a professional to diagnose underlying issues.

Safety Considerations

Safety is paramount when handling a Goodman furnace reset button. Always de-energize the furnace before opening access panels to avoid electric shock. If there is a gas smell or you suspect a gas leak, evacuate immediately and call the gas company or emergency services. Do not repeatedly reset a furnace that continues to trip; persistent resets can mask dangerous conditions such as flame rollouts, vent blockages, or faulty sensors. When in doubt, contact a licensed HVAC technician for diagnosis and service.

When performing a reset, never bypass safety devices or disable the furnace’s protective features. Resetting should clear a fault temporarily, not serve as a substitute for professional repair of a malfunctioning sensor, inducer, or venting system. Keep clear access to the furnace and avoid touching electrical components with wet hands or while standing on a damp surface.

Common Causes For Repeated Reset Trips

Restricted airflow due to dirty or blocked air filters, dirty blower wheel, or closed vents leading to overheating.
Vent or flue blockages that prevent proper exhaust gas venting and create flame or pressure issues.
Faulty or dirty flame sensor causing improper ignition signals and safety trips.
Malfunctioning pressure switch or inducer assembly that falsely indicates abnormal air pressure.
Weak or fluctuating gas supply causing improper burner operation and safety shutdowns.
Dirty or damaged limit switches that trip on temperature rise inside the furnace.
Electrical issues such as loose connections, power surges, or a failing control board that intermittently triggers faults.

Maintenance Tips To Prevent Reset Trips

Replace or clean air filters regularly, especially during peak heating seasons, to maintain proper airflow.
Schedule annual professional tune-ups to inspect the inducer, pressure switch, flame sensor, burners, and venting system.
Keep the condensate drain clear and ensure proper draining to avoid water-related pressure or sensor faults.
Inspect and seal ductwork to minimize leakage and preserve efficient airflow throughout the system.
Ensure the thermostat is accurate and compatible with the furnace and set to the proper heat anticipator settings.
Address any unusual noises, odors, or pilot indicators promptly to prevent minor faults from evolving into safety trips.

Troubleshooting After A Reset: What To Do If It Won’t Start

If the Goodman furnace does not restart after a reset, check basic steps first: verify the power is fully restored, confirm the thermostat is calling for heat, and inspect the gas valve is open and gas pressure is correct. Look for any error codes or blinking LEDs on the control board, which can indicate the specific fault category. If you cannot identify or resolve the issue, contact a licensed HVAC technician. Repeated attempts to diagnose and repair without proper equipment can be dangerous and may void warranties.

Additionally, examine common failure points such as a dirty flame sensor, a blocked vent, a collapsed or damaged duct, a faulty pressure switch, or a heat exchanger issue. These problems often require professional testing equipment and expertise. Document any symptoms, codes, or recent changes to help a technician diagnose the root cause more efficiently.

When To Call A Pro

Call a professional HVAC technician if the Goodman furnace trips repeatedly, if you are unsure about the location of the reset button, or if you detect gas odor or other dangerous conditions. A pro can perform a thorough inspection, verify gas pressures, test safety controls, and address root causes such as faulty sensors, wiring faults, or venting problems. Regular maintenance from a qualified technician can help prevent unexpected trips and extend the life of the furnace.

For warranty-covered units, consult the warranty terms prior to any DIY work. Unauthorized alterations or repeated resets may affect coverage. When in doubt about safety or performance, prioritize professional service to ensure reliable and safe furnace operation.