- Garden
- Robot lawnmower
Blade motor fault
Worx Landroid 'Blade motor fault': robot mower blade disc stuck
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
The Landroid blade disc is blocked by an object, such as a branch, or overloaded by thick dense grass. Turn it off, remove the battery, wear gloves, turn it over and clear what stops the disc; in tall grass, raise the cutting height.
Safety first
Stop and check this first
- Before turning the Landroid over or reaching underneath, turn it off and, as Worx requires before cleaning or touching the blades, remove the battery and wear protective gloves: the blades are razor sharp on both edges. Never defeat or cover the lift sensor or remove the PIN. Worx forbids cleaning it with a hose or pressure washer.
Safe checks you can perform
- Blade disc free of obstructions
- Grass height and cutting height
- Cleaning the disc and blades
Leave these tasks to a qualified professional
- Do not attempt this professional task: Blade motor diagnosis
- Do not attempt this professional task: Mowing test after the repair
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Blade motor diagnosis
What they doIf the disc turns freely and the grass is short, Worx service checks the blade motor and its connection before replacing parts.
They must show youthe disc turning freely and the motor test.
In writingthe cause found, any part replaced and why.
Mowing test after the repair
What they doWhen finished, the technician sets the Landroid mowing and checks the disc turns without vibration and the message does not return.
They must show youa mowing session without the message.
In writingthe test done, the result and the date.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Blade disc free of obstructions
- Who:
- you, wearing protective gloves.
- How:
- turn the Landroid off, remove the battery as Worx requires, turn it over carefully and look for a branch, stone or wrapped grass stopping the disc; remove it without touching the edges.
- Result that matters:
- the disc turning smoothly by gloved hand.
- If there was an object:
- remove it, set the robot upright, refit the battery, turn it on and press START.
- If nothing is there and the disc turns freely:
- check the grass height.
- Evidence to keep:
- photo of what was blocking the disc.
Blades are sharp on both edges: battery out and gloves on before turning the robot over.
Evidence: Worx Landroid WR140 WR143 WR150 WR153 owner's manual (EN/FR/ES) · Worx support WR150 Landroid L message Blade motor fault
Grass height and cutting height
- Who:
- you.
- How:
- note whether the fault appeared in tall or very dense grass. Worx says to move the robot to short grass or raise the cutting height and then lower it gradually.
- Result that matters:
- the robot mowing without repeating the fault.
- If it no longer appears with a higher cutting height:
- the grass was overloading it.
- If it also appears in short grass:
- clean the disc and the motor area.
- Evidence to keep:
- note of the area and the cutting height set.
Evidence: Worx Landroid WR140 WR143 WR150 WR153 owner's manual (EN/FR/ES)
Cleaning the disc and blades
- Who:
- you, with gloves and the battery removed.
- How:
- with the robot off and upside down, clean the disc, chassis and blades with a soft brush and check each blade spins freely around its screw, as the Worx maintenance section says.
- Result that matters:
- a clean disc with no cracks and blades that spin freely.
- If it was packed with grass:
- after cleaning, set the robot upright, turn it on and press START.
- If the fault persists with everything clean:
- contact Worx service.
- Evidence to keep:
- photos of the disc before and after cleaning.
Do not use a hose or pressure washer: Worx forbids it because water gets past the seals.
Evidence: Worx Landroid WR140 WR143 WR150 WR153 owner's manual (EN/FR/ES)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Garden
- Brand
- Worx
- Product type
- Robot lawnmower
Known code variants
- Blade motor fault
- Blade motor fault! Press START to reset
- Error del motor de la cuchilla
- Landroid blade disc blocked
- Landroid blade motor fault
- Landroid motor de cuchilla bloqueado
- Worx Landroid blade motor fault
- Worx Landroid error motor cuchilla
What it means
In the Worx Landroid WR140, WR143, WR150 and WR153 owner's manual, 'Blade motor fault! Press START to reset' has two causes: the blade disc blocked by an object, for example a branch, or the blade overloaded by thick dense grass. The official Worx help article for the WR150 says to remove the battery, turn the Landroid upside down and clear the obstruction from the blade area. Other Landroid models may use other messages. The message alone does not prove that the motor is faulty.
Warnings and stop conditions
- Highsource verified
Before turning the Landroid over or reaching underneath, turn it off and, as Worx requires before cleaning or touching the blades, remove the battery and wear protective gloves: the blades are razor sharp on both edges. Never defeat or cover the lift sensor or remove the PIN. Worx forbids cleaning it with a hose or pressure washer.
Evidence: Worx Landroid WR140 WR143 WR150 WR153 owner's manual (EN/FR/ES)
Symptoms and causes
Probable causes · in order
- Object blocking the blade discCommon
Worx gives an object, for example a branch, that stops the blade disc from rotating as the first cause.
Evidence: Worx Landroid WR140 WR143 WR150 WR153 owner's manual (EN/FR/ES) · Worx support WR150 Landroid L message Blade motor fault
- Grass too long or too denseCommon
The blade is overloaded by thick dense grass; Worx says to move the robot to short grass or set a higher cutting height.
Evidence: Worx Landroid WR140 WR143 WR150 WR153 owner's manual (EN/FR/ES)
- Debris built up in the disc or motor areaPossible
The Worx troubleshooting guide lists grass wrapped around the blade disc or built up in the motor frame box, which slows the disc.
Evidence: Worx Landroid WR140 WR143 WR150 WR153 owner's manual (EN/FR/ES)
Virtual technician
Does Blade motor fault still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Worx Landroid WR140 WR143 WR150 WR153 owner's manual (EN/FR/ES)
Worx · 2019 · manual
- 2
Worx support WR150 Landroid L message Blade motor fault
Worx · 2026 · official_doc
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