🔧Appliance

COLLISION SENSOR

Husqvarna · Automower 430XH Robotic Lawn Mower

Husqvarna Automower 430XH Robotic Lawn Mower COLLISION SENSOR Error Fix: Collision Sensor Defective

The front collision/bumper sensor is not functioning properly — the collision sensor detects objects in the mower path; a defective sensor may cause the mower to repeatedly bump into obstacles it should detect, or conversely, to stop and turn away from open areas; inspect the front bumper for damage, cracks, or debris that prevents proper movement; the sensor relies on the bumper being free to move slightly on impact; a stuck or jammed bumper prevents detection; clean the bumper mechanism and check the sensor wiring

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error COLLISION SENSOR on the Husqvarna Automower 430XH Robotic Lawn Mower means: Collision Sensor Defective. The top-ranked community fix is “Replace Front Collision Sensor Assembly” (medium difficulty, ~45 min, DIY cost: $15-$20). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · robotic mower

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many robotic mower repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $120-$180.

Other Husqvarna Models with Error COLLISION SENSOR

Automower 450XH Robotic Lawn Mower

robotic_mower · 2 fixes

Other Husqvarna Automower 430XH Robotic Lawn Mower Error Codes

BOUNDARY WIRE BREAK

Confirmed Boundary Wire Break

2 fixes

CHARGING PROBLEM

Charging System Problem

2 fixes

CUTTING HEIGHT

Cutting Height Adjustment Problem

2 fixes

CUTTING MOTOR OVERLOAD

Cutting Motor Drawing Too Much Current

2 fixes

GPS SIGNAL POOR

GPS/GNSS Signal Is Weak

2 fixes

GUIDE WIRE MISSING

Guide Wire Signal Not Detected

2 fixes

LOW BATTERY

Battery Charge Critically Low

2 fixes

MOWER LIFTED

Mower Has Been Lifted

2 fixes

People Also Ask About Husqvarna Automower 430XH Robotic Lawn Mower Error COLLISION SENSOR

What does error code COLLISION SENSOR mean on a Husqvarna Automower 430XH Robotic Lawn Mower?

Error code COLLISION SENSOR on the Husqvarna Automower 430XH Robotic Lawn Mower means: Collision Sensor Defective. The front collision/bumper sensor is not functioning properly — the collision sensor detects objects in the mower path; a defective sensor may cause the mower to repeatedly bump into obstacles it should detect, or conversely, to stop and turn away from open areas; inspect the front bumper for damage, cracks, or debris that prevents proper movement; the sensor relies on the bumper being free to move slightly on impact; a stuck or jammed bumper prevents detection; clean the bumper mechanism and check the sensor wiring

How do I fix error code COLLISION SENSOR on my Husqvarna Automower 430XH Robotic Lawn Mower?

The most successful fix is "Replace Front Collision Sensor Assembly" (medium difficulty, ~45 minutes). Estimated DIY cost: $15-$20. HomeMD has 2 community-ranked fixes for this error.

Is error code COLLISION SENSOR on a Husqvarna Automower 430XH Robotic Lawn Mower serious?

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Can I fix Husqvarna Automower 430XH Robotic Lawn Mower error COLLISION SENSOR myself?

Yes — the top-ranked community fix ("Replace Front Collision Sensor Assembly") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Multimeter.

How much does it cost to repair Husqvarna Automower 430XH Robotic Lawn Mower error COLLISION SENSOR?

DIY cost: $15-$20. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Husqvarna Automower 430XH Robotic Lawn Mower have?

The Husqvarna Automower 430XH Robotic Lawn Mower has 8 other known error codes, including: BOUNDARY WIRE BREAK (Confirmed Boundary Wire Break), CHARGING PROBLEM (Charging System Problem), CUTTING HEIGHT (Cutting Height Adjustment Problem), CUTTING MOTOR OVERLOAD (Cutting Motor Drawing Too Much Current), GPS SIGNAL POOR (GPS/GNSS Signal Is Weak), and 3 more.

Which other Husqvarna models have the COLLISION SENSOR error?

Error code COLLISION SENSOR also appears on 1 other Husqvarna model: Automower 450XH Robotic Lawn Mower. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Husqvarna Automower 430XH Robotic Lawn Mower have?

The Husqvarna Automower 430XH Robotic Lawn Mower has 8 other known error codes:

BOUNDARY WIRE BREAK — Confirmed Boundary Wire Break (2 fixes)
CHARGING PROBLEM — Charging System Problem (2 fixes)
CUTTING HEIGHT — Cutting Height Adjustment Problem (2 fixes)
CUTTING MOTOR OVERLOAD — Cutting Motor Drawing Too Much Current (2 fixes)
GPS SIGNAL POOR — GPS/GNSS Signal Is Weak (2 fixes)
GUIDE WIRE MISSING — Guide Wire Signal Not Detected (2 fixes)
LOW BATTERY — Battery Charge Critically Low (2 fixes)
MOWER LIFTED — Mower Has Been Lifted (2 fixes)

Which other Husqvarna models have the COLLISION SENSOR error?

Error code COLLISION SENSOR also appears on 1 other Husqvarna model:

Automower 450XH Robotic Lawn Mower (robotic mower) · 2 fixes

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