This guide helps you troubleshoot Snow Joe® + Sun Joe® lawn mowers by mower type. Use the Electric Lawn Mower section for corded mower power and starting issues, the Battery-Powered Lawn Mower section for cordless mower power and battery checks, the Manual Lawn Mower section for reel mower wheel or blade checks, the 24V-X2-17LM Blade Tightening section for the blade tightening video, and the Self-Propelled Lawn Mower section only for the 24V-X2-21LMSP model.
Lawn Mower Troubleshooting
Lawn Mower Troubleshooting
Use this guide to troubleshoot common starting, cutting, blade, reel, and self-propelled lawn mower issues.
Corded Electric
Battery Powered
Manual Reel
Blade Tightening
Self-Propelled
📌 Quick Reference
Use this table to choose the correct troubleshooting section before starting.
| Mower Type | Common Issue | Start Here |
|---|---|---|
| Electric lawn mower | No power, motor strain, or poor cutting | Blade obstruction, cutting height, extension cord, and start sequence |
| Battery-powered lawn mower | No power, motor strain, or poor cutting | Blade obstruction, cutting height, battery seating, safety key, and start sequence |
| Manual lawn mower | Wheels moving backward or reel cutting issue | Handle/grass catcher removal, cutting bar access, and paper test |
| 24V-X2-17LM | Blade needs tightening | Use the 24V-X2-17LM blade tightening video section |
| 24V-X2-21LMSP | Self-propelled mower does not start or drive correctly | Safety key, handle extension, low speed setting, triangle button, and switch lever |
⚡ Electric Lawn Mower
Use these steps if a corded electric lawn mower does not start, has poor cutting performance, or appears to strain during use.
- Examine the blade area for obstructions, buildup, or debris that may prevent the blade from rotating properly.
- Adjust the cutting height if it is set too low. A very low cutting height can strain the motor.
- Make sure the correct outdoor extension cord is being used and that the cord is securely connected.
- Tilt the handle down into the operating position.
- Press and hold the safety lock button while pulling the switch lever to start the mower.
🔋 Battery-Powered Lawn Mower
Use these steps if a cordless battery-powered lawn mower does not start, has poor cutting performance, or appears to strain during use.
- Examine the blade area for obstructions, buildup, or debris that may prevent the blade from rotating properly.
- Adjust the cutting height if it is set too low. A very low cutting height can strain the motor.
- Make sure the battery clicks securely into place.
- If the mower uses a safety key, remove the safety key and re-insert it.
- Tilt the handle down into the operating position.
- Press and hold the safety lock button while pulling the switch lever to start the mower.
🎥 How to Tighten the Blade for 24V-X2-17LM
Use this section only for the 24V-X2-17LM blade tightening video. Always power the mower OFF, remove the batteries, remove the safety key if applicable, and wait for the blade to stop completely before checking or tightening the blade.
How to Tighten the Blade for 24V-X2-17LM
Watch this video walkthrough for tightening the blade on the 24V-X2-17LM lawn mower.
If the video does not load, open it directly on YouTube: How to Tighten the Blade for 24V-X2-17LM.
🛞 Manual Lawn Mower
Use these steps if the manual reel mower wheels appear to move backward or the reel is not cutting correctly.
- Remove the handles and the grass catcher.
- Turn the mower reel upside down to expose the cutting bar.
- Insert a piece of paper between the cutting bar and the reel blades.
- Slowly turn the wheel by hand to check whether the reel blades are cutting the paper properly.
🚜 Self-Propelled Lawn Mower 24V-X2-21LMSP
Use this section only for the 24V-X2-21LMSP self-propelled lawn mower.
- Remove the safety key, then re-insert it.
- Press the handle release button and lower the handle.
- Extend the handle until it clicks on both sides.
- Set the speed to low.
- Press down the triangle button for 10 seconds without pulling back on the lever.
- Release the triangle button.
- Press the triangle button down again and pull back on the switch lever.