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How to Fix a Snowblower That Won't Start | DIY DIY Blog
How to Fix a Snowblower That Won’t Start

How to Fix a Snowblower That Won’t Start

A snowblower that won’t start won’t be very effective at clearing your driveway and is a problem you’ll want to take care of ASAP so that you’re ready for the next snowfall. Since many parts could cause your snowblower to not start, it can be confusing to decide where to start. Which is why we put together a list of the five most common reasons your snowblower won’t start, as well as how to fix each malfunctioning part:


The carburetor is responsible for mixing air and fuel in a proper ratio to allow combustion. When the carburetor malfunctions and does not mix in the correct ratio, it can cause a snowblower to not start. Often, you just need to clean your carburetor. To do this, remove the carburetor from the snowblower, dismantle it, and spray it with carburetor cleaner. If cleaning does not resolve your issue, check out the video above, which will show you how to diagnose and repair your snowblower carburetor.

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The purpose of a gasket is to seal off air and liquids from entering areas they don’t belong. If you have a leaking gasket, it could cause your snowblower to not start as air, fuel, or water may be causing parts to malfunction. To inspect the main engine gasket on your snowblower, remove the carburetor and visually inspect the gasket for signs of corrosion, warping, or other damage. If you find any issues, it will need to be replaced.

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Spark Plug

A bad spark plug can cause many issues with your snowblower, including causing it to not start. While the process will vary slightly from model to model, to inspect your spark plug, you will first need to remove the spark plug cover and then remove the spark plug using the correct socket. Once you have removed it, look for signs of damage, corrosion, or melted electrodes. If the plug is only dirty, you can use a wire brush to clean it, but if you find other issues, it will need to be replaced. For help locating and replacing your spark plug, check out the step-by-step video above!

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Primer Bulb

Primer bulbs allow you to pump fuel directly into the carburetor, allowing your snowblower to start easier. If your primer bulb is cracked or leaking fuel, it may not force enough fuel into the carburetor to allow your snowblower to start. To inspect your primer bulb, start by visually inspecting it for signs of damage or wear, and then while pushing in on it, listen for air entering the system. If you find either of these issues, you will need to replace it. If you need help replacing yours, check out the video above.

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Ignition Switch

When you turn the key in your snowblower, you are turning the ignition switch to the “on” position, allowing current to flow to the spark plug and, in some models, supply power to the starter. If your spark plug and/or starter do not receive input from the ignition switch, it can cause your snowblower to not start. To inspect the ignition switch, remove the casing the covers the ignition switch and start by visually inspecting it for damage, corrosion, or wear. Next, use a multimeter to test the switch for continuity. If you find issues during either inspection, it will need to be replaced.

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We hope that this guide helped you get your snowblower started again so you can tackle any storm that comes at you. If you need more help diagnosing and repairing your snowblower, check out our Repair Center with thousands of articles and videos to help you with your repairs!

If you need parts to complete repairs on your snowblower, power tools, and more, we’ve got you covered with manufacturer-approved parts for thousands of models! Shop Now >
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