Automower Error Messages: No Loop Signal, Outside Work Area, and More

A Husqvarna Automower shows a text message, not a numbered code, when it stops. Most messages point to one of four things: a boundary wire or signal problem, a blocked wheel or blade disc, a mower that is stuck, tipped, or lifted, or a charging problem. Fix the cause first, then clear the message in the app or on the mower.

Last reviewed: October 2026. Messages and fixes come from Husqvarna’s operator’s manuals and support articles. Wording varies slightly by model.

Clearing a message

“Reset Error” in the app: some errors can be cleared remotely. Tap it, then restart the mower from the app.
“Manual action required”: for safety, some errors can only be cleared at the mower, for example after the STOP button was pressed or the mower tipped. Fix the cause, press STOP, enter your PIN, and choose an operating mode.
Restart: Husqvarna suggests restarting first, which does not delete settings. On jog wheel models, turn the wheel to Power off and press it, then hold it for 3 seconds to restart. On keypad models, hold the ON/OFF button for 3 seconds, then press it again.

Boundary wire and signal

No loop signal: the power supply or low-voltage cable is unplugged or damaged, the boundary wire is disconnected or broken, the wire runs the wrong way around an island, or metal or buried cables are interfering. Check the charging station light, the outlet, and the connections, then find any break. Afterward, generate a new loop signal in the mower’s settings. See finding a boundary wire break.
Outside work area: the mower thinks it is outside the lawn when it is not. Husqvarna names four causes: the wire is too close to a slope or obstacle (it gives a minimum margin of 35 cm, about 14 inches), the wire is on the wrong pin at the charging station, the wire runs the wrong way around an island, or, on EPOS models, the virtual boundary is too close to a slope or obstacle.

Blocked or stuck

Wheel motor blocked (or left, right, or overloaded): grass or an object is wound around a drive wheel. Remove it.
Cutting system blocked or Blade disc blocked: grass or an object is wound around the blade disc, or the disc is sitting in water. Clear it, and stop water pooling if you can.
Cutting height blocked: grass or debris is in the height adjustment or between the blade disc and chassis. Clean it out.
Trapped: obstacles have closed the mower into a small area. Free it and remove them.
No drive: the mower hit something, its wheels are slipping on wet grass, the slope is too steep, or the guide wire runs straight up a slope instead of at an angle. Free it, wait for the lawn to dry, and lay the guide wire at an angle across slopes.

Tipped, lifted, or bumped

Upside down or Mower tilted: the mower has tipped or is past its maximum angle. Set it upright on flat ground.
Lifted: the lift sensor was triggered by an object or blockage. Free the mower. Husqvarna says to contact a dealer if it keeps happening.
Collision sensor problem: the body cannot move freely on the chassis. Husqvarna lists these causes: the mower is wedged under something, debris is caught between body and chassis, the body is not seated correctly, the grass is too tall, the cutting height is too low, or the wheels are blocked. A temporary electronic fault can also cause it, so restart the mower.

Charging and battery

Empty battery or Low battery voltage: the mower could not find the charging station, the guide wire is broken or disconnected, or the battery is worn out. Check the guide wire. For battery prices, see robot battery replacement costs.
Charging station blocked: poor contact between the mower and the charging plates, something in the way, or a station that is tilted or bent. Check the contacts and set the station on flat, level ground.
Stuck in charging station: the wheels are slipping on the base plate, or something blocks the exit. Clean the base plate and clear the way.

Messages that are not faults

Next start hh:mm: the schedule is holding the mower. Change the schedule if you want it to mow sooner.
Needs manual charging: the mower is in a mode that will not return it to the station on its own. Put it on the charging station.
Alarm messages such as “Alarm! Mower lifted”: the anti-theft alarm was set off. Alarm behavior is set in the Security menu.

When to call a dealer

Husqvarna’s manuals also list hardware messages such as Electronic problem, Loop sensor problem, Charging system problem, and Tilt sensor problem. If a restart does not clear a message, or the same fault keeps returning, Husqvarna directs owners to a dealer. Warranty work requires an authorized servicing dealer. See Automower service and warranty.

Frequently asked questions

What does “No loop signal” mean on an Automower?

The mower cannot detect the signal from its boundary wire. The usual causes are a power problem at the charging station, a broken or disconnected wire, or interference.

Why does my Automower say “Outside work area” when it is inside?

The loop signal is reversed or confused, usually because the wire is too close to a slope or obstacle, connected to the wrong pin, or routed the wrong way around an island.

How do I reset an Automower error?

Fix the cause, then tap Reset Error in the app if it is offered. Otherwise press STOP on the mower, enter your PIN, and choose an operating mode.

Related guides

Sources

Home Robotics Services is an independent reference site. It is not affiliated with Husqvarna.

Automower Error Messages: Causes and Fixes