Why does my leaf blower keep shutting off? Here’s what you need to look out for and quick fixes

When your leaf blower abruptly stops during operation, a common cause is an obstructed filter. This can occur in both gas and electric models, as clogs impede necessary airflow. To resolve this, remove the filter cover for gas blowers and give the filter a thorough cleaning. For electric leaf blowers, clear any debris from the air intake vent and give the filter a wipe-down.

This should remedy the unexpected shutdowns. If using a gas-powered leaf blower, old gasoline may be the root of the problem, especially if the unit hasn't been used recently. Gasoline that has degraded over time can lead to engine issues. To address this, drain the old gasoline into a suitable container, install a new fuel filter, and refill with fresh gas and oil blend.

If the issue persists, inspect the carburetor for buildup and clean it using a specialized carburetor cleaner. Be sure to also examine the spark arrestor and fuel cap for any debris or grime. Additionally, test the fuel cap by slightly loosening it and operating the blower. If the machine functions properly while the cap is loose but stalls when tightened, a new cap may be required.

For cordless leaf blowers, a damaged battery could be the culprit. A faulty battery may have difficulty maintaining its charge, resulting in the blower cutting out frequently. Swap the battery with a spare or new one to determine if this improves performance. Ensure batteries are stored in a dry, moisture-free area away from extreme temperatures for optimal longevity.