Hedge trimmer running but blades not moving? Causes and fixes
If your hedge trimmer is running but the blades are not moving, it’s usually caused by a blockage, lack of lubrication or a mechanical issue.
Follow the steps below to quickly fix the most common problems.
Quick check
- Is the engine running normally?
- Are the blades blocked by debris?
- Is the battery charged or fuel level sufficient?
If yes, continue below.
Most common causes and fixes
Jammed blades
Debris like twigs, leaves or dried sap can stop the blades from moving.
What to do:
- Turn off the product
- Disconnect power (battery or spark plug)
- Carefully remove any debris
Even small buildup can prevent movement.
Blades need cleaning and lubrication
Dry or blades create friction and may stop completely.
What to do:
- Clean the blades with a cloth or brush
- Apply blade lubricant or light oil
Regular lubrication helps keep the blades moving freely.
Bent or damaged blades
If the blades are bent or worn, they may not move correctly.
Check for:
- Bent teeth
- Visible damage
Damaged blades should be replaced.
Power or engine issue
If the engine is running weakly, it may not drive the blades.
Check:
- Battery charge or cable (electric models)
- Fuel, air filter and spark plug (petrol models)
Still not working?
If the blades are still not moving, the issue may be internal.
Tried the steps above? Continue with guided troubleshooting:
How to prevent this issue
- Clean blades after each use
- Lubricate regularly
- Avoid cutting material that is too thick
- Inspect blades for damages