Top 6 snow blower problems & how to fix them
Steven E / Thursday February 20, 2025
Dealing with a snow blower that’s acting up can be frustrating, especially when the snow’s piling up outside. But don’t worry, many common snow blower problems are easier to fix than you might think. We will help you troubleshoot and fix the issues so you can get back to clearing your driveway in no time.
Heads up: The information in this article is meant to provide general guidance but may not align perfectly with your specific snow blower model. While we aim to offer helpful DIY advice for various appliance repairs, differences in models and setups can lead to variations in troubleshooting steps, error codes, and part replacements. For the most accurate information, we recommend consulting your manufacturer’s documentation or reaching out to us with any questions.
1. Snow blower won’t start
A snow blower that won’t start can be frustrating, but it’s often an issue you can fix yourself. Let’s break it down by the type of snow blower and fuel source.
Gas-powered snow blowers possible causes: Faulty spark plug, stale or insufficient fuel, dirty carburetor, or clogged fuel line.
How to fix it:
- Check the spark plug: Remove the spark plug using a wrench or socket. Inspect for carbon buildup or damage. Clean it with a wire brush or replace it if worn.
- Inspect the fuel: Drain old fuel from the tank and refill with fresh, properly mixed fuel (if required). Use a fuel stabilizer to prevent clogs in the future.
- Clean the carburetor: Remove the carburetor and clean it thoroughly with carburetor cleaner. Check for clogs in the jets and passageways.
- Check the fuel line: Inspect the line for blockages or cracks. Replace the line if it’s damaged or clogged.
Electric and battery-powered snow blowers possible causes: Faulty power cord or connection or dead or weak battery.
How to fix it:
- Inspect the power cord (electric): Look for damage or fraying in the cord. Replace if damaged.
- Check the battery (battery-powered): Ensure the battery is fully charged. Test the battery with a multimeter and replace if it’s not holding a charge.
Read more: Snowblower won’t start: A troubleshooting guide
2. Auger does not turn
If your snow blower’s auger isn’t spinning, it can’t do its job of clearing snow. Here’s how to troubleshoot and fix this issue depending on your snow blower type.
Gas-powered snow blowers possible causes: Broken shear pins, worn or broken drive belt or damaged gearbox.
How to fix it:
- Check the shear pins: Locate the shear pins on the auger shaft. Inspect for breakage or missing pins. Replace broken pins with ones that match your snow blower model.
- Inspect the drive belt: Remove the belt cover and check for cracks, fraying, or snapping. Replace the belt if it’s worn or broken.
- Examine the gearbox: Look for visible damage or leaking oil. Replace the gearbox if it’s damaged, ensuring the new one matches your snow blower model.
Electric and battery-powered snow blowers possible causes: Faulty motor or drive system.
How to fix it:
- Test the motor: Use a multimeter to check for continuity in the motor. Replace the motor if it’s not functioning properly.
- Inspect the drive mechanism: Ensure the auger drive is connected and functioning. Replace damaged parts as needed.
3. Snow blower doesn’t throw snow far enough
If your snow blower is barely tossing snow, it’s a sign that something is clogging or wearing out in the system. Here’s how to troubleshoot and fix it.
Gas-powered snow blowers possible causes: Clogged chute or auger housing, worn auger blades, or loose or misaligned chute.
How to fix it:
- Clear the chute and auger housing: Turn off the engine and disconnect the spark plug. Use a chute clearing tool or stick (never your hands) to remove snow and debris.
- Inspect the auger blades: Check for wear, cracks, or damage. Replace worn blades to improve snow collection and discharge.
- Adjust the chute: Tighten the chute bolts and realign it to ensure it’s directing snow properly.
Electric and battery-powered snow blowers possible causes: Insufficient power or clogged chute.
How to fix it:
- Ensure full power: For electric models, check the power supply and extension cords for adequate voltage. For battery models, ensure the battery is fully charged and functioning.
- Clear blockages: Turn off the snow blower and clear the chute and auger housing of any packed snow.
4. Wheels or tracks won’t move
If your snow blower’s wheels or tracks are stuck, you won’t get very far in clearing snow. This problem is typically related to the drive system.
Gas-powered snow blowers possible causes: Slipping or broken drive belt, worn friction disc or damaged transmission or drive system.
How to fix it:
- Inspect the drive belt: Remove the belt cover and check for cracks, fraying, or stretching. Replace the drive belt if it’s worn or broken.
- Check the friction disc: Access the friction disc by removing the lower cover of the snow blower. Inspect for wear or smooth spots. Replace the disc if it’s worn out.
- Examine the transmission: Inspect for broken gears, leaks, or misaligned parts. Replace damaged transmission parts as needed.
Electric and battery-powered snow blowers possible causes: Faulty motor or drive mechanism.
How to fix it:
- Test the motor: Use a multimeter to check the motor for continuity. Replace the motor if it’s defective.
- Inspect the drive system: Check for any disconnection or damage in the wheel or track mechanisms. Replace or reattach parts needed.
Read more: Snow blower won’t shift: A troubleshooting guide
5. Snow blower vibrates excessively
Excessive vibration can make your snow blower difficult to handle and may indicate loose or damaged parts. Let’s pinpoint the cause and fix it.
Gas-powered snow blowers possible causes: Loose or unbalanced parts, or damaged auger or impeller.
How to fix it:
- Tighten bolts and screws: Inspect all bolts and screws around the auger, housing, and engine. Use a wrench to tighten any loose fasteners.
- Check the auger and impeller: Look for bends, cracks, or breaks in the auger blades or impeller. Replace any damaged parts to restore balance.
Electric and battery-powered snow blowers possible causes:
- Misaligned or loose parts.
How to fix it:
- Inspect all moving parts: Check the auger, housing, and motor mounts for loose or shifted parts. Tighten or realign as necessary.
- Test the motor: Use a multimeter to ensure the motor is functioning properly without irregularities.
6. Engine runs rough or surges
A snow blower engine that runs unevenly or surges can be a sign of issues with airflow, fuel, or the carburetor. Addressing these problems will restore smooth operation.
Gas-powered snow blowers possible causes: Dirty or clogged air filter, clogged or dirty carburetor, or improper fuel mix or stale fuel.
How to fix it:
- Clean or replace the air filter: Remove the air filter cover and inspect the filter for dirt or clogs. Clean the filter with compressed air or replace it if it’s too dirty or damaged.
- Clean the carburetor: Remove the carburetor and use a carburetor cleaner to clear debris and clogs. Reinstall and adjust the carburetor according to the manufacturer’s instructions.
- Check the fuel: Drain any stale fuel and refill with fresh gas. Use a fuel stabilizer to prevent future clogs and keep fuel fresh longer.
Electric and battery-powered snow blowers possible causes: Voltage fluctuations in the power source (electric). Weak or failing battery (battery-powered).
How to fix it:
- Inspect the power cord or battery: For electric models, ensure the power cord and outlet provide consistent voltage. For battery models, test the battery with a multimeter and replace it if it’s not holding a charge.
- Check the motor: Inspect for irregular motor operation and clean any debris that could block airflow around the motor.
Read more: Snowblower chute won’t turn: A troubleshooting guide
Additional information
If you need any replacement parts or a bit more help, swing by AppliancePartsPros.com for a huge selection of parts and expert advice. We’re here to help you keep your appliances running smoothly all year round.
Don’t forget to follow us on social media for more tips and updates:
If you have any questions or need extra support, please reach out to us. We’re happy to help!
With nearly a decade of experience in providing top-notch customer service regarding appliance parts and repair, Steven enjoys sharing practical advice, troubleshooting tips, and interesting information to help readers stay informed.