how to reset furnace blower motor

3 min read 05-02-2025

Meta Description: Is your furnace blower motor refusing to cooperate? This comprehensive guide provides step-by-step instructions on how to reset your furnace blower motor, troubleshoot common issues, and when to call a professional. Learn how to identify the reset button, handle error codes, and prevent future problems. Don't let a malfunctioning blower motor leave you in the cold – get your heating system back up and running today!

Understanding Your Furnace Blower Motor

The blower motor is a crucial component of your furnace, responsible for circulating heated air throughout your home. Sometimes, this motor can experience temporary malfunctions that can be resolved with a simple reset. Before we dive into the reset process, let's understand why this might be necessary.

Common Reasons for a Furnace Blower Motor to Need Resetting:

Power surges: Sudden spikes in electricity can disrupt the motor's operation.
Overheating: The motor might overheat due to restricted airflow or a failing component.
Software glitches: Modern furnaces often have control boards that can experience minor software errors.
Safety shutdowns: The furnace might shut down automatically due to a detected problem, like a tripped limit switch.

Knowing the underlying cause can help you prevent future issues. Let's proceed to the actual reset process.

How to Reset Your Furnace Blower Motor

The location and method of resetting your furnace blower motor varies depending on the make and model of your furnace. However, there are some common approaches.

1. Locate the Reset Button

The reset button is usually located on the furnace control board. This board is often accessible by removing a panel on the front or side of the furnace. Consult your furnace's owner's manual for precise location. The button might be labeled "Reset," "Power," or have a symbol of a circle with a line through it.

2. Press and Hold the Reset Button

Once you've found the button, press and hold it for about 5-10 seconds. Release the button and observe if the blower motor starts. If not, try again, making sure the button is firmly pressed.

3. Check for Error Codes

Many modern furnaces display error codes on a digital display. These codes often indicate the specific problem with your furnace. Consult your owner's manual to understand the meaning of any codes displayed. Some common codes may indicate problems beyond a simple reset. This may require professional assistance.

4. Check for Obstructions

Ensure that the air vents throughout your home are open and free of obstructions. Restricted airflow can cause the motor to overheat and trigger a safety shutdown. Clean or replace any clogged air filters. This simple step can often solve the issue.

Troubleshooting Persistent Problems

If resetting the blower motor doesn't resolve the issue, there could be a more significant problem.

Possible Issues and Solutions:

Blown fuse or tripped breaker: Check your home's electrical panel for a tripped breaker or blown fuse related to your furnace.
Faulty blower motor: A faulty motor may require replacement. This is a job best left to a qualified HVAC technician.
Malfunctioning capacitor: The capacitor helps start the motor. A failing capacitor may need to be replaced by a professional.
Issues with the control board: A problematic control board requires expert diagnosis and repair.

When to Call a Professional HVAC Technician

While resetting the blower motor is often a simple fix, it’s crucial to understand when you need professional help.

Call an HVAC Technician if:

Resetting the motor doesn't work: Repeated attempts at resetting the blower motor without success indicate a more complex problem.
You see error codes you don't understand: Error codes often pinpoint the source of the problem; a professional can diagnose and fix it.
You're uncomfortable working with electrical components: Working with electrical systems carries inherent risks; safety should always come first.
The furnace smells unusual: Burning smells indicate potential electrical or mechanical failures requiring immediate professional attention.
The furnace is making unusual noises: Unusual banging, grinding, or squealing noises point to a problem that should be addressed by a professional.

Ignoring a malfunctioning furnace can lead to costly repairs and safety hazards.

Preventative Maintenance for Your Furnace

Regular maintenance is key to preventing issues with your furnace blower motor and overall system longevity.

Change your air filter regularly: A clogged filter restricts airflow, forcing the motor to work harder and potentially leading to overheating.
Schedule annual professional inspections: An HVAC technician can identify and address potential problems before they become major issues.
Clean your furnace vents: Ensure your vents are clean and unobstructed.
Keep the area around your furnace clear: Sufficient space around your furnace allows for proper ventilation and prevents overheating.

By following these tips, you can keep your furnace running smoothly and avoid costly repairs.

Remember, safety is paramount. If you are unsure about any step in this process, contact a qualified HVAC technician. They have the expertise and tools to diagnose and fix the problem efficiently and safely.