Blower: Doesn't Blow Air
If your blower is not blowing air, check the following parts in your appliance: the impeller nut, fan, and tubes. Our guide will help you identify the problem accurately and walk you through the repair process. This is a general guide for your repair; for more detailed information on your model, refer to the owner’s manual.
Fans
Your leaf blower manual may refer to a fan, which is simply another name for the impeller. As above, the fan is attached to the crankshaft, and when it rotates it provides air flow. You leaf blower’s fan will have several fins that move the air while the fan is operating. Occasionally, rocks and debris can be sucked up into these fins, causing damage. Damaged fins can cause the fan to malfunction, resulting in the inability to blow air. See the above description of the impeller for more information on why a faulty or damaged fan might cause this symptom.
Your leaf blower manual may refer to a fan, which is simply another name for the impeller. As above, the fan is attached to the crankshaft, and when it rotates it provides air flow. You leaf blower’s fan will have several fins that move the air while the fan is operating. Occasionally, rocks and debris can be sucked up into these fins, causing damage. Damaged fins can cause the fan to malfunction, resulting in the inability to blow air. See the above description of the impeller for more information on why a faulty or damaged fan might cause this symptom.
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Nuts
The impeller nut attaches the impeller or fan to the crankshaft. Sometimes the impeller nut is a lock nut, but other times the nut is secured with Loctite. If the nut comes loose the crankshaft might spin without rotating the impeller. If the impeller does not rotate, then air flow is not created, which will result in this symptom. To complete this repair, you will need to access the inside of your leaf blower, so be sure that you have disconnected the spark plug from the blower engine before you begin this repair.
The impeller nut attaches the impeller or fan to the crankshaft. Sometimes the impeller nut is a lock nut, but other times the nut is secured with Loctite. If the nut comes loose the crankshaft might spin without rotating the impeller. If the impeller does not rotate, then air flow is not created, which will result in this symptom. To complete this repair, you will need to access the inside of your leaf blower, so be sure that you have disconnected the spark plug from the blower engine before you begin this repair.
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Tubes
The tubes in your leaf blower typically direct the flow of air during operation. However, in some models the tubes funnel air down to a nozzle that increases the speed of the air flow. In this case, it might seem as if the blower isn’t blowing air, or isn’t blowing enough air. This can be a result of missing or damaged tubes. A quick note before you replace your tubes: some leaf blowers allow you to redirect the air flow passing through the blower housing, which allows the blower to act as a vacuum. In this case, your blower may be on the incorrect setting, which can prevent it from blowing air.
The tubes in your leaf blower typically direct the flow of air during operation. However, in some models the tubes funnel air down to a nozzle that increases the speed of the air flow. In this case, it might seem as if the blower isn’t blowing air, or isn’t blowing enough air. This can be a result of missing or damaged tubes. A quick note before you replace your tubes: some leaf blowers allow you to redirect the air flow passing through the blower housing, which allows the blower to act as a vacuum. In this case, your blower may be on the incorrect setting, which can prevent it from blowing air.
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Impellers
If your blower starts and the throttle runs properly but it still does not blow air, there are a variety of parts that might be causing it. The impeller is essentially a fan blade that draws air into the blower housing and forces it out the blower tube. The impeller is installed in the blower housing, where you can find it attached to the crankshaft of the engine. When the crankshaft turns, it rotates the impeller, which causes air to flow through the blower. If your leaf blower does not blow air, it is possible that debris has been sucked into the blower housing, impeding the impeller from doing its job. If the impeller is loose or the blades of the impeller are damaged or broken off, it can also cause the blower to become unable to blow air.
If your blower starts and the throttle runs properly but it still does not blow air, there are a variety of parts that might be causing it. The impeller is essentially a fan blade that draws air into the blower housing and forces it out the blower tube. The impeller is installed in the blower housing, where you can find it attached to the crankshaft of the engine. When the crankshaft turns, it rotates the impeller, which causes air to flow through the blower. If your leaf blower does not blow air, it is possible that debris has been sucked into the blower housing, impeding the impeller from doing its job. If the impeller is loose or the blades of the impeller are damaged or broken off, it can also cause the blower to become unable to blow air.
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