Understanding and Resolving the Malfunction of Your Electric Snow Blower

Have you ever experienced an electric snow blower that starts and clears snow for about 10 minutes but then stops functioning when you try to restart it? You're not alone. This issue might be caused by an over-heat circuit interrupter, a machine protection feature designed to prevent motor burn-out during intense winter conditions.

Machine Protection Feature: Over-Heat Circuit Interrupter

Blowing snow is labor-intensive work, and the motor can overheat quite rapidly. Most electric snow blowers are equipped with an over-heat circuit interrupter designed to shut off the motor when it reaches a certain temperature. This is a safety feature to prevent motor damage and ensure the longevity of the device. If the snow blower is not properly cooled, it might shut down and require a 60-minute cooldown period before it can be restarted.

Checking Vents and Cooling Systems

Check the vents that allow the motor to cool. These vents should not be blocked or becoming blocked by snow. If the motor cannot breathe, it triggers a safety mechanism to avoid overheating. Ensure that the vents are clear and not obstructed while in use. If you suspect that the vents are clogged, clean them thoroughly to allow for proper cooling.

Thermal Overload and Motor Protection

In some cases, the issue might be related to thermal overload. When the electric motor and the electric switch heat up, the thermal overload may kick in and disable the machine. This protection feature typically resets after an hour. However, if the motor does not spin when you turn on the power and the electrical components are warm, it could be due to thermal expansion.

Diagnosing and Troubleshooting

To determine which part is defective, you might use a voltmeter for a more precise diagnosis. If the motor is equipped with a starting capacitor, check it and the connections to the motor first. This component can sometimes wear out and affect the motor's ability to start.

Conclusion

Not only does understanding the over-heat circuit interrupter and thermal overload features help you resolve the issue, but it also ensures your snow blower's longevity. Regular maintenance and proper operation are key to keeping your electric snow blower in top condition. Clean and check your vents, monitor the machine's temperature, and replace any faulty parts to prevent future malfunctions.

For further information on your specific model, consult the purchase literature or the manufacturer's website. If you're still unsure about how to proceed, consider reaching out to a professional for assistance.