Resetting your blower motor typically involves safely cutting power to your HVAC system, accessing the motor, and pressing its dedicated reset button. This action often resolves issues where the motor has shut down due to overheating, acting as a safety mechanism to prevent damage.
Steps to Reset Your Blower Motor
A blower motor may trip its internal safety switch if it overheats, which can happen due to a clogged air filter, restricted airflow, or continuous operation. Resetting it can often restore functionality. Follow these steps carefully:
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Turn Off Power to Your HVAC System:
- Locate the circuit breaker panel for your home.
- Find the breaker labeled for your HVAC system, furnace, or air handler and switch it to the "OFF" position. This is a crucial safety step to prevent electrical shock.
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Unscrew the Blower Cover:
- Access the furnace or air handler unit where the blower motor is housed.
- Use a screwdriver to remove the screws holding the blower compartment cover in place. Carefully set the cover aside.
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Allow the Blower to Cool Down:
- If the motor tripped due to overheating, it needs time to cool completely before it can be reset and safely restarted.
- Wait at least 30 minutes to an hour for the motor to cool down.
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Locate and Push the Reset Button:
- The reset button is typically a small, red button located on the blower motor itself, often on the back or side.
- Once the motor is cool, firmly press this button. You might hear a faint click, indicating the switch has reset.
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Replace the Blower Cover and Restore Power:
- Securely screw the blower compartment cover back into place.
- Return to your circuit breaker panel and switch the HVAC system breaker back to the "ON" position.
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Test the System:
- Turn on your thermostat to activate the fan or a heating/cooling cycle to see if the blower motor starts running normally.
What if it Doesn't Reset or Trips Again?
If the blower motor does not reset, or if it trips again shortly after resetting, it indicates a deeper issue. This could be due to:
- Persistent Overheating: Issues like a severely clogged air filter, blocked return air vents, or a dirty blower wheel can restrict airflow, causing the motor to continuously overheat.
- Motor Malfunction: The motor itself might be failing, have worn bearings, or an electrical issue.
- Capacitor Failure: A faulty run capacitor can prevent the motor from starting or running efficiently, leading to overheating.
In such cases, it is advisable to contact a qualified HVAC technician for diagnosis and repair. For more detailed insights into common furnace and blower issues, troubleshooting resources can provide further guidance on maintaining your HVAC system.
