Few things frustrate homeowners more than a furnace that unexpectedly stops working. Often, the first thing people reach for is the furnace reset button. Questions like “Where is the reset button on a Lennox furnace?”, “How to reset a Lennox furnace?”, and “Lennox blower motor reset button location” are incredibly common. Understanding furnace reset buttons is crucial, whether you own a Lennox system, a Goodman MBVK electric furnace, or any other residential heating system.
In this guide, I’ll explain everything you need to know about furnace reset buttons, including how they work, how to locate and reset them, and best practices for troubleshooting and maintaining your system to prevent repeated trips.
What Is a Furnace Reset Button?
A furnace reset button is a safety feature designed to protect your system from damage. It shuts down the furnace in cases of:
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Overheating
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Electrical faults
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Blower motor issues
When the furnace trips, the reset button must be pressed to restore operation—but it is essential to first address the underlying issue. Repeatedly pressing the button without troubleshooting can cause permanent damage or pose a safety risk.
Lennox Furnace Reset Buttons Explained
Lennox furnaces include reset buttons for safety and motor protection. Homeowners often ask:
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Lennox furnace reset button location
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How to reset a Lennox furnace
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Lennox blower motor reset button location
On Lennox systems, the reset button is usually:
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On the blower motor housing
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Behind a service panel
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Integrated with safety circuits
Safety first: always turn off power at the breaker before pressing the reset button. (Lennox Residential)
How to Reset a Lennox Furnace
Resetting a Lennox furnace involves the following steps:
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Turn off power at the breaker
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Locate the reset button, often a small red button on the blower motor
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Press and hold the button for 5–10 seconds
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Release the button and restore power
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Monitor operation to ensure normal function
Avoid pressing the reset button repeatedly without addressing underlying problems, as this can lead to blower motor damage or repeated trips.
Troubleshooting Lennox Furnace Reset Buttons
Frequent trips of the Lennox furnace reset button are often caused by:
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Overheating: Dirty filters, blocked vents, or restricted airflow
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Electrical faults: Loose wires, shorted components, or faulty relays
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Blower motor problems: Overheating or mechanical strain
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Control board issues: Erratic signals causing false trips
Inspecting these components before repeatedly pressing the reset button ensures both safety and long-term reliability. (HVAC.com)
Goodman MBVK Electric Furnace Reset Overview
While Lennox furnaces are common, the Goodman MBVK electric furnace is a modern alternative, offering safe and reliable electric heat. Key features of the MBVK include:
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High-limit safety switches
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Variable-speed ECM blower motor
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Modular heat strips
Unlike gas systems, the MBVK does not have burners or flame sensors. Overheating and blower faults may still trip the furnace, requiring manual reset.
Resetting the Goodman MBVK Furnace
The reset process for the MBVK is similar to other electric furnaces:
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Turn off power at the main breaker
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Locate the reset button near the blower compartment
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Press and hold the button for several seconds
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Restore power and monitor operation
Repeated trips indicate a need to inspect airflow, filters, or blower operation. (Goodman Manufacturing)
Lennox Blower Motor Reset Buttons
Some Lennox systems include a blower motor reset button. Its purpose is to:
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Protect the motor from overheating
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Shut down the blower in case of electrical faults
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Reset the motor for safe operation
The blower motor reset button location varies by model but is commonly found on the motor housing itself. Pressing this button follows the same safety procedure: turn off power, press, release, and restore power.
Bryant vs. Lennox vs. Goodman MBVK Reset Systems
While the reset function is similar across brands, there are differences:
| Feature | Lennox Furnace | Goodman MBVK Electric Furnace |
|---|---|---|
| Fuel type | Gas/Electric | Electric |
| Reset button location | Blower motor / control panel | Blower compartment |
| High-limit protection | Yes | Yes |
| Blower motor protection | Yes | ECM variable-speed motor |
| Complexity | Moderate | Simpler, no burners or flame sensors |
Understanding these differences helps homeowners troubleshoot correctly.
Safety Tips When Using the Reset Button
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Always turn off power at the breaker before pressing the button
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Inspect airflow and filters for clogs
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Do not press repeatedly without troubleshooting
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Schedule professional maintenance if trips persist
Safety applies whether you are dealing with a Lennox furnace reset button, blower motor reset button, or Goodman MBVK reset system.
Troubleshooting Reset Button Problems
Some common troubleshooting steps:
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Check airflow: Replace filters and clear vents
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Inspect blower motor: Ensure it runs freely and is not overheating
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Check electrical connections: Tighten loose wires
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Inspect heat elements: Verify integrity and absence of debris
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Check thermostat signals: Incorrect operation may cause trips
Correctly diagnosing the problem prevents repeated trips and ensures safe operation.
When to Call a Professional
If the reset button keeps tripping or does not function, call a licensed technician. Signs include:
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Frequent trips in short periods
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Strange noises or smells
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Blower failure after resetting
A professional inspection prevents damage and ensures long-term reliability. (ACCA)
Preventive Maintenance to Reduce Reset Trips
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Replace air filters regularly (1–3 months)
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Clean ductwork and vents
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Schedule annual inspection of blower motors and electrical components
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Check thermostat operation
Regular maintenance keeps Lennox furnace reset button and Goodman MBVK systems working reliably.
Summary: Mastering Your Furnace Reset Button
Homeowners often ask:
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Where is the reset button on a Lennox furnace?
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How to reset a Lennox furnace?
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What to do if the blower motor trips repeatedly?
Understanding your furnace reset button, performing proper maintenance, and troubleshooting effectively ensures safe, reliable heating. Whether you own a Lennox furnace or a Goodman MBVK electric furnace, knowing the correct reset procedure and preventive tips is key to avoiding cold nights and expensive repairs.
