Husqvarna
Husqvarna Robot Lawnmowers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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Alarm! Mower stopped
Display shows “Alarm! Mower stopped” and mower requires PIN entry to resume.
Theft or unauthorized movement alarm
Battery problem
Display shows “Battery problem” and mower stops, refuses to start, or has very short mowing cycles.
Battery capacity or communication fault
Battery temperature
Display shows “Battery temperature” and mower stops or refuses to charge.
Battery temperature out of allowed range
Charging current too high
Display shows “Charging current too high” and mower stops charging shortly after docking.
Overcurrent in charging circuit
Charging station blocked
Display shows “Charging station blocked” and mower cannot dock or charge properly.
Obstruction or misalignment at charging station
Charging system problem
Display shows “Charging system problem” and mower does not charge or leaves station with very low runtime.
General charging circuit malfunction
Collision sensor problem
Display shows “Collision sensor problem” and mower may stop frequently or not detect obstacles correctly.
Bumper or collision sensor malfunction
Cutting height blocked
Display shows “Cutting height blocked” and mower cannot adjust cutting height; adjustment motor may make noise or stop.
Cutting height adjustment mechanism jammed
Cutting system blocked
Display shows “Cutting system blocked” and blades do not spin; mower may stop with a loud stall sound.
Cutting disc overload or jam
Guide 1 not found
Display shows “Guide 1 not found” and mower has difficulty returning to the charging station via guide 1.
Guide wire 1 signal missing
Guide 2 not found
Display shows “Guide 2 not found” and mower cannot follow guide 2 path.
Guide wire 2 signal missing
Guide 3 not found
Display shows “Guide 3 not found” on models with a third guide and mower fails to use that path.
Guide wire 3 signal missing
Lift sensor problem
Display shows “Lift sensor problem” and mower stops or refuses to start even when placed on the ground.
Lift sensor malfunction
Loop sensor problem, front
Display shows “Loop sensor problem, front” and mower stops near the boundary wire.
Front loop sensor detection failure
Loop sensor problem, rear
Display shows “Loop sensor problem, rear” and mower stops when reversing or near the charging station.
Rear loop sensor detection failure
Mower lifted
Display shows “Mower lifted” and mower stops; may occur when passing over bumps or roots.
Lift safety activation
Mower tilted
Display shows “Mower tilted” and mower stops, often on slopes or when stuck on obstacles.
Tilt safety activation
No contact with charging station
Display shows “No contact with charging station” and mower cannot find or communicate with the dock.
Communication failure between mower and station
No drive
Display shows “No drive” and mower does not move even though blades may spin.
Drive system failure
No loop signal
Display shows “No loop signal” and mower will not start or leaves the charging station only to stop immediately.
Loop generator or loop circuit failure
Outside working area
Display shows “Outside working area” and mower stops shortly after starting or when reaching certain spots in the yard.
Boundary loop signal not detected or outside loop
Slope too steep
Display shows “Slope too steep” and mower stops or turns away from certain areas.
Slope limit exceeded
Tilt sensor problem
Display shows “Tilt sensor problem” and mower stops even on level ground.
Tilt sensor malfunction or miscalibration
Unexpected error
Display shows “Unexpected error” and mower stops without a clear cause.
Generic system fault
Wheel drive problem, left
Display shows “Wheel drive problem, left” and mower may spin or fail to drive straight.
Left wheel drive electrical or sensor fault
Wheel drive problem, right
Display shows “Wheel drive problem, right” and mower struggles to move or turns unexpectedly.
Right wheel drive electrical or sensor fault
Wheel motor blocked, left
Display shows “Wheel motor blocked, left” and mower stops, often turning in one direction only.
Left drive wheel overload or stall
Wheel motor blocked, right
Display shows “Wheel motor blocked, right” and mower stops, often on uneven or soft ground.
Right drive wheel overload or stall
Wrong PIN code
Display shows “Wrong PIN code” after attempting to unlock the mower.
Security PIN mismatch
Symptom
Mower blades do not spin but no error code is shown
Cutting motor not engaging
Symptom
Mower body is cracked or chassis damaged after impact
Structural chassis damage
Symptom
Mower cuts too low and scalps the lawn in places
Incorrect cutting height setting
Symptom
Mower display or keypad does not respond
User interface failure
Symptom
Mower does not dock correctly and misses the charging contacts
Docking alignment issue
Symptom
Mower does not start at scheduled times
Timer or operating mode misconfiguration
Symptom
Mower gets stuck frequently on small obstacles or uneven ground
Ground clearance and obstacle handling issue
Symptom
Mower is very noisy during operation compared to normal
Mechanical noise from cutting system or drive
Symptom
Mower leaves the lawn and crosses paths or gravel areas
Boundary containment failure
Symptom
Mower leaves uncut patches or stripes in the lawn
Insufficient cutting coverage or dull blades
Symptom
Mower loses connection to Automower Connect app or GPS tracking unreliable
Connectivity or communication issue
Symptom
Mower returns to charging station too often with short mowing periods
Reduced battery capacity or high load
Symptom
Mower smells of burnt electronics or plastic
Overheating or electrical short
Symptom
Mower wheels spin but mower does not move (slips in place)
Loss of traction
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| Alarm! Mower stopped |
Display shows “Alarm! Mower stopped” and mower requires PIN entry to resume.
|
Theft or unauthorized movement alarm | View Details |
| Battery problem |
Display shows “Battery problem” and mower stops, refuses to start, or has very short mowing cycles.
|
Battery capacity or communication fault | View Details |
| Battery temperature |
Display shows “Battery temperature” and mower stops or refuses to charge.
|
Battery temperature out of allowed range | View Details |
| Charging current too high |
Display shows “Charging current too high” and mower stops charging shortly after docking.
|
Overcurrent in charging circuit | View Details |
| Charging station blocked |
Display shows “Charging station blocked” and mower cannot dock or charge properly.
|
Obstruction or misalignment at charging station | View Details |
| Charging system problem |
Display shows “Charging system problem” and mower does not charge or leaves station with very low runtime.
|
General charging circuit malfunction | View Details |
| Collision sensor problem |
Display shows “Collision sensor problem” and mower may stop frequently or not detect obstacles correctly.
|
Bumper or collision sensor malfunction | View Details |
| Cutting height blocked |
Display shows “Cutting height blocked” and mower cannot adjust cutting height; adjustment motor may make noise or stop.
|
Cutting height adjustment mechanism jammed | View Details |
| Cutting system blocked |
Display shows “Cutting system blocked” and blades do not spin; mower may stop with a loud stall sound.
|
Cutting disc overload or jam | View Details |
| Guide 1 not found |
Display shows “Guide 1 not found” and mower has difficulty returning to the charging station via guide 1.
|
Guide wire 1 signal missing | View Details |
| Guide 2 not found |
Display shows “Guide 2 not found” and mower cannot follow guide 2 path.
|
Guide wire 2 signal missing | View Details |
| Guide 3 not found |
Display shows “Guide 3 not found” on models with a third guide and mower fails to use that path.
|
Guide wire 3 signal missing | View Details |
| Lift sensor problem |
Display shows “Lift sensor problem” and mower stops or refuses to start even when placed on the ground.
|
Lift sensor malfunction | View Details |
| Loop sensor problem, front |
Display shows “Loop sensor problem, front” and mower stops near the boundary wire.
|
Front loop sensor detection failure | View Details |
| Loop sensor problem, rear |
Display shows “Loop sensor problem, rear” and mower stops when reversing or near the charging station.
|
Rear loop sensor detection failure | View Details |
| Mower lifted |
Display shows “Mower lifted” and mower stops; may occur when passing over bumps or roots.
|
Lift safety activation | View Details |
| Mower tilted |
Display shows “Mower tilted” and mower stops, often on slopes or when stuck on obstacles.
|
Tilt safety activation | View Details |
| No contact with charging station |
Display shows “No contact with charging station” and mower cannot find or communicate with the dock.
|
Communication failure between mower and station | View Details |
| No drive |
Display shows “No drive” and mower does not move even though blades may spin.
|
Drive system failure | View Details |
| No loop signal |
Display shows “No loop signal” and mower will not start or leaves the charging station only to stop immediately.
|
Loop generator or loop circuit failure | View Details |
| Outside working area |
Display shows “Outside working area” and mower stops shortly after starting or when reaching certain spots in the yard.
|
Boundary loop signal not detected or outside loop | View Details |
| Slope too steep |
Display shows “Slope too steep” and mower stops or turns away from certain areas.
|
Slope limit exceeded | View Details |
| Tilt sensor problem |
Display shows “Tilt sensor problem” and mower stops even on level ground.
|
Tilt sensor malfunction or miscalibration | View Details |
| Unexpected error |
Display shows “Unexpected error” and mower stops without a clear cause.
|
Generic system fault | View Details |
| Wheel drive problem, left |
Display shows “Wheel drive problem, left” and mower may spin or fail to drive straight.
|
Left wheel drive electrical or sensor fault | View Details |
| Wheel drive problem, right |
Display shows “Wheel drive problem, right” and mower struggles to move or turns unexpectedly.
|
Right wheel drive electrical or sensor fault | View Details |
| Wheel motor blocked, left |
Display shows “Wheel motor blocked, left” and mower stops, often turning in one direction only.
|
Left drive wheel overload or stall | View Details |
| Wheel motor blocked, right |
Display shows “Wheel motor blocked, right” and mower stops, often on uneven or soft ground.
|
Right drive wheel overload or stall | View Details |
| Wrong PIN code |
Display shows “Wrong PIN code” after attempting to unlock the mower.
|
Security PIN mismatch | View Details |
| – |
Mower blades do not spin but no error code is shown
|
Cutting motor not engaging | View Details |
| – |
Mower body is cracked or chassis damaged after impact
|
Structural chassis damage | View Details |
| – |
Mower cuts too low and scalps the lawn in places
|
Incorrect cutting height setting | View Details |
| – |
Mower display or keypad does not respond
|
User interface failure | View Details |
| – |
Mower does not dock correctly and misses the charging contacts
|
Docking alignment issue | View Details |
| – |
Mower does not start at scheduled times
|
Timer or operating mode misconfiguration | View Details |
| – |
Mower gets stuck frequently on small obstacles or uneven ground
|
Ground clearance and obstacle handling issue | View Details |
| – |
Mower is very noisy during operation compared to normal
|
Mechanical noise from cutting system or drive | View Details |
| – |
Mower leaves the lawn and crosses paths or gravel areas
|
Boundary containment failure | View Details |
| – |
Mower leaves uncut patches or stripes in the lawn
|
Insufficient cutting coverage or dull blades | View Details |
| – |
Mower loses connection to Automower Connect app or GPS tracking unreliable
|
Connectivity or communication issue | View Details |
| – |
Mower returns to charging station too often with short mowing periods
|
Reduced battery capacity or high load | View Details |
| – |
Mower smells of burnt electronics or plastic
|
Overheating or electrical short | View Details |
| – |
Mower wheels spin but mower does not move (slips in place)
|
Loss of traction | View Details |
No matching codes found
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