Furnace Blower Motor Reset Button

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​If you’re searching for a furnace blower motor reset button, you’re likely dealing with a furnace that won’t blow air, keeps shutting off, or stopped working after overheating.
👉 Some furnace blower motors have a reset button, but many modern systems do not. Whether you can safely reset it depends on the motor type and what caused the shutdown.
This guide explains where to find it, how it works, and when not to reset it.

Quick Answer: Furnace Blower Motor Reset Button

• Not all furnaces have a blower motor reset button
  
• If present, it’s usually red or black
  
• Commonly located on the blower motor housing
  
• Pressing it resets an overheat safety shutdown
  
• Repeated trips mean a bigger problem
  

1. What Is the Furnace Blower Motor Reset Button?The blower motor reset button is a manual safety switch that shuts the motor off if it overheats.
It protects the motor from:

• Electrical damage
  
• Burnout
  
• Fire risk
  

When the motor cools down, pressing the button may restore operation.

2. Do All Furnace Blower Motors Have a Reset Button?❌ No.

• Older furnaces: More likely to have one
  
• Newer furnaces: Often use internal or automatic reset protection
  
• ECM motors: Usually do not have a reset button
  

If your furnace doesn’t have one, forcing a reset isn’t possible — and not recommended.

3. Where Is the Furnace Blower Motor Reset Button Located?If your furnace has one, it’s usually:

• On the side or back of the blower motor
  
• Inside the lower furnace access panel
  
• A small red or black button
  

⚠️ You may need to remove a panel to see it.

4. How to Reset a Furnace Blower Motor (Safely)Step-by-Step:

1. Turn off power at the breaker
   
2. Let the furnace cool for 30 minutes
   
3. Remove the blower compartment panel
   
4. Locate the reset button
   
5. Press it once
   
6. Restore power and test
   

If it immediately trips again, stop and call a professional.

5. Why Did the Blower Motor Need Resetting?Common causes include:

• Dirty air filter
  
• Blocked vents
  
• Failing blower motor
  
• Bad capacitor
  
• Electrical issues
  
• Overheating due to lack of airflow
  

In San Mateo homes, dust buildup and restricted airflow are frequent culprits.

6. Signs the Blower Motor Is Failing

• Furnace turns on but no airflow
  
• Weak air from vents
  
• Burning or electrical smell
  
• Loud humming or squealing
  
• Frequent shutdowns
  
• Reset button trips repeatedly
  

These signs usually mean replacement or repair is needed.

7. Can You Keep Resetting the Blower Motor?🚫 No — and you shouldn’t.
Repeated resets can:

• Damage the motor
  
• Create fire hazards
  
• Mask serious electrical issues
  
• Lead to complete system failure
  

A reset is a temporary safety measure, not a fix.

8. Blower Motor Reset Button vs Furnace Reset ButtonThey are not the same thing.
ComponentPurposeBlower motor resetProtects motor from overheating
Furnace resetResets ignition or control lockoutsPressing the wrong reset won’t fix airflow problems.

9. When to Call an HVAC ProfessionalCall a technician if:

• Reset button keeps tripping
  
• Furnace overheats
  
• Blower won’t start
  
• You smell burning
  
• Furnace shuts off mid-cycle
  

These indicate electrical or airflow problems that need professional diagnosis.

10. How to Prevent Blower Motor Reset Issues

• Change air filters every 1–3 months
  
• Keep vents open and unblocked
  
• Schedule annual furnace maintenance
  
• Clean blower assembly regularly
  
• Address unusual noises early
  

Preventive maintenance is especially important in older Peninsula homes.

Frequently Asked QuestionsWhere is the furnace blower motor reset button?If present, it’s usually located on the blower motor housing inside the lower furnace panel.
Why does my blower motor keep tripping the reset?Most commonly due to overheating from restricted airflow, dirty filters, or a failing motor.
Is it safe to press the reset button?Once, yes — repeatedly, no. Frequent resets mean a bigger issue.
Do new furnaces have reset buttons?Most newer furnaces rely on internal safety controls instead of manual reset buttons.