Craftsman Electric Leaf Blower Won't Start

An electric leaf blower offers a convenient and efficient way to manage yard debris. However, a non-starting Craftsman electric leaf blower can disrupt lawn care routines. This article outlines common causes and troubleshooting steps to address this issue.

Preliminary Checks

Before delving into more complex diagnostics, conduct these initial checks:

Power Source Verification

Ensure the power outlet is functioning correctly. Test the outlet with another electrical device, such as a lamp or phone charger. If the outlet is dead, check the circuit breaker or GFCI outlet and reset if necessary.

Extension Cord Inspection

Examine the extension cord for any signs of damage, including cuts, frays, or exposed wires. A damaged extension cord can prevent the blower from receiving power. Use a heavy-duty, outdoor-rated extension cord of the appropriate gauge for the blower's amperage. Verify the extension cord is fully and securely connected to both the outlet and the leaf blower.

Power Switch Position

Confirm that the leaf blower's power switch is in the "ON" position. Sometimes the switch may appear to be on but is not fully engaged. Try moving the switch back and forth firmly to ensure it makes proper contact.

Common Causes and Solutions

If the preliminary checks are satisfactory, proceed to investigate these common causes:

Faulty Power Switch

The power switch is a critical component that enables current flow to the motor. Over time, the switch can become worn or damaged, preventing it from making proper contact.

Diagnosis: Disconnect the leaf blower from the power source. Locate the power switch and visually inspect it for any signs of damage, such as cracks or broken terminals. If visible damage is present, the switch likely needs replacement. Use a multimeter to test the continuity of the switch. With the switch in the "ON" position, the multimeter should indicate continuity (a closed circuit). If there is no continuity, the switch is faulty.

Solution: Replace the faulty power switch. Obtain a replacement switch that is compatible with your Craftsman leaf blower model. Disconnect the wires from the old switch, noting their positions. Connect the wires to the new switch in the same configuration. Ensure the connections are secure. Reassemble the leaf blower and test its operation.

Damaged Motor

The motor is the heart of the leaf blower, responsible for generating the airflow. If the motor is damaged, the blower will not start.

Diagnosis: Disconnect the leaf blower from the power source. Listen for any unusual noises coming from the motor when attempting to start the blower. A humming sound or a complete lack of sound can indicate a motor issue. Use a multimeter to test the motor windings for continuity. Disconnect the wires leading to the motor. Measure the resistance across the motor terminals. If the reading is zero (short circuit) or infinite (open circuit), the motor is likely damaged.

Solution: Replacing the motor can be a complex and potentially costly repair. Depending on the age and condition of the leaf blower, it may be more economical to replace the entire unit. If you choose to replace the motor, obtain a replacement motor that is compatible with your Craftsman leaf blower model. Carefully disconnect the wires from the old motor, noting their positions. Install the new motor, connecting the wires in the same configuration. Ensure the connections are secure. Reassemble the leaf blower and test its operation.

Carbon Brush Wear (If Applicable)

Some electric leaf blowers use carbon brushes to conduct electricity to the motor. These brushes wear down over time and can eventually prevent the motor from running.

Diagnosis: Disconnect the leaf blower from the power source. Locate the carbon brushes. They are typically located on the sides of the motor housing and are accessible through small access ports. Remove the access covers and inspect the brushes. If the brushes are worn down to less than ¼ inch in length, they need to be replaced.

Solution: Replace the worn carbon brushes. Obtain replacement brushes that are compatible with your Craftsman leaf blower model. Remove the old brushes and install the new brushes, ensuring they make good contact with the commutator. Replace the access covers. Reassemble the leaf blower and test its operation.

Thermal Overload Protection

Electric leaf blowers are often equipped with a thermal overload protector to prevent the motor from overheating. If the motor becomes too hot, the overload protector will trip, cutting off power to the motor.

Diagnosis: Allow the leaf blower to cool down completely. The thermal overload protector will typically reset itself after the motor has cooled. This may take 30 minutes or longer. Check the manufacturer's instructions for specific reset procedures. Some models may have a manual reset button.

Solution: Ensure adequate ventilation around the motor to prevent overheating. Avoid using the leaf blower for extended periods in hot weather. Clear any obstructions that may be blocking airflow to the motor. If the thermal overload protector continues to trip frequently, there may be an underlying problem with the motor or other components.

Wiring Issues

Loose or damaged wires can prevent the leaf blower from starting.

Diagnosis: Disconnect the leaf blower from the power source. Carefully inspect all visible wiring inside the blower housing for any signs of damage, such as cuts, frays, or loose connections. Use a multimeter to check the continuity of the wires. Disconnect the wire from both ends and measure the resistance. A reading of infinity indicates a broken wire.

Solution: Repair or replace any damaged wires. Ensure all connections are secure. Use wire connectors or solder to make reliable connections. If you are not comfortable working with electrical wiring, consult a qualified electrician.

Capacitor Failure (Less Common)

Some electric leaf blowers use a capacitor to help start the motor. A failed capacitor can prevent the motor from starting.

Diagnosis: Disconnect the leaf blower from the power source. Visually inspect the capacitor for any signs of bulging, leaking, or other damage. Use a multimeter with a capacitance setting to test the capacitor's capacitance. Compare the measured capacitance to the value printed on the capacitor. A significant deviation from the specified value indicates a faulty capacitor. Note: Capacitors can store an electrical charge even when disconnected from the power source. Discharge the capacitor before testing it to avoid electric shock. You can do this by shorting the capacitor terminals with an insulated screwdriver.

Solution: Replace the faulty capacitor. Obtain a replacement capacitor that is compatible with your Craftsman leaf blower model. Ensure the replacement capacitor has the same voltage and capacitance rating as the original. Disconnect the wires from the old capacitor, noting their positions. Connect the wires to the new capacitor in the same configuration. Ensure the connections are secure. Reassemble the leaf blower and test its operation.

Safety Precautions

Before performing any troubleshooting or repair work, always disconnect the leaf blower from the power source. Wear appropriate safety gear, such as safety glasses and gloves. If you are not comfortable working with electrical appliances, consult a qualified technician.

Why This Matters

Diagnosing and resolving a non-starting Craftsman electric leaf blower is crucial for maintaining lawn care efficiency. Understanding the common causes and troubleshooting steps can save time and money compared to professional repairs or complete replacement. By following the guidance provided, users can often restore their leaf blower to working condition, ensuring a well-maintained yard.