Automower®5/02/2025
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.
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