Automower®05/02/2025
Cutting system blocked: Automower® error message
The message Cutting system blocked indicates that something is blocking the blade disc. Here are the common causes and solutions:
Lawn mower stuck on an object
- Cause: The lawn mower is stuck on an object like a tree root or trampoline leg.
- Solution: Remove the lawn mower from the object and restart it.
- If it frequently gets stuck in the same spot, consider isolating the problematic area with an island or a stay-out zone.
- How to create an island in an Automower® installation
- What is a stay-out zone and how do I create one? (For lawn mowers with AIM Technology)
Grass or objects wrapped around the blade disc, wheels or under the cutting deck
- Cause: Grass or other objects are wrapped around the blade disc and need to be removed.
- Solution: Check for debris under the cutting deck, around the wheels and in between the body and chassis.
- For more information, see: How to clean your Husqvarna Automower® and Husqvarna CEORA™ robotic lawn mower.
Grass too high
- Cause: The grass is too high for the lawn mower to handle.
- Solution: Adjust the cutting height on the lawn mower and ensure the grass does not exceed the maximum height recommended for your Automower® model. See table below.
- For more information, see: How to change the cutting height on your Automower® robotic lawn mower
Model | Maximum grass height |
Aspire™ R4 | 4 cm/1.6 in |
105 | 4 cm/1.6 in |
115H | 4 cm/1.6 in |
305/310 Mark II/315 Mark II | 10 cm/3.9 in |
310/315/315X | 10 cm/3.9 in |
405X/415X | 10 cm/3.9 in |
420/430X/440/450X | 10 cm/3.9 in |
435X AWD/435X AWD NERA | 10 cm/3.9 in |
320 NERA/430X NERA/450X NERA | 10 cm/3.9 in |
305E NERA/310E NERA/405XE NERA/410XE NERA | 6 cm/2.5 in |
Slope too steep
- Cause: The slope is too steep for the lawn mower to handle.
- Solution: Check the maximum supported gradient for your specific Automower® model. See table below. If the slope is too steep, isolate it with an island or stay-out zone.
- Find out more about installation for steep slopes here.
Model | Maximum gradient |
Aspire™ R4 | 25% |
105 | 25% |
115H | 30% |
305E NERA/310E NERA/405XE NERA/410XE NERA | 30% |
305/310 Mark II/315 Mark II | 40% |
310/315/315X | 40% |
405X/415X | 40% |
420/430X/440/450X | 40% |
320 NERA/430X NERA/450X NERA | 50% |
435X AWD/435X AWD NERA | 70% |
Our Product Assistant can help you find the solution for your specific case.
If the problem persists, please contact your local Husqvarna dealer.
Was this article helpful?
Robotic Lawn Mowers
(6)