Husqvarna sets this out as a table with the columns “Message”, “Cause”, “Action”. We print the lines in the maker’s order.

• No loop signal
• The power supply or low-voltage cable is not connected.
• If the LED status indicator on the charging station is not lit, it shows that there is no power. Examine the power outlet connection and the residual-current device. Make sure that the low-voltage cable is connected to the charging station.
• The power supply or low-voltage cable is damaged or not connected.
• Replace the power supply or low-voltage cable.
• The boundary wire is not connected to the charging station.
• Check that the boundary wire connectors are fitted properly to the charging station.
• Replace connectors if damaged. Refer to To install the boundary wire on page 18.
• The boundary is wire broken.
• Do a check of the LED status indicator on the charging station. If it shows break in the boundary wire, replace the damaged section with a new loop wire and splice using an original coupler.
• ECO mode is activated and the product has attempted to start outside the charging station.
• Put the product in the charging station, start the product and close the hatch.
• The boundary wire is crossed on its way to and from an island.
• Check that the boundary wire is laid according to instructions, e.g. in the right direction around the island. Refer to To install the boundary wire on page 18.
• The pairing between the product and the charging station is lost.
• Put the product in the charging station and generate a new loop signal. Refer to To create a New loop signal on page 23.
• Disturbances from metal objects (fences, reinforcement steel) or buried cables close by.
• Try to move the boundary wire and/or make islands in the work area to increase the signal strength.
• Connection NOT changed
• Failed to change loop signal.
• Try to create a New loop signal several times. Refer to To create a New loop signal on page 23. If the problem stays, speak to your authorized service technician.
• 36 - Troubleshooting
• Wheel motor blocked, left/right
• Grass or other object is wrapped around the drive wheel.
• Clean the wheels and around the wheels.
• Wheel motor overloaded, left/right
• Wheel drive problem, right/left
• Cutting system blocked
• Grass or other object is wrapped around the drive wheel.
• Clean the wheels and around the wheels.
• The blade disc lies in a pool of water.
• Move the product and prevent the collection of water in the work area.
• The grass is too high.
• Cut the grass before you install the product.
• Make sure that the grass is maximum 10 cm / 3.9 in.
• Cutting system imbalance
• Too few or too many blades.
• Do a check of the blades on the blade disc.
• Outside working area
• The boundary wire connections to the charging station are crossed.
• Check that the boundary wire is connected correctly.
• The boundary wire is too close to the edge of the work area.
• Check that the boundary wire has been laid according to the instructions. Refer to To install the boundary wire on page 18.
• The work area slopes too much by the boundary loop.
• The boundary wire is laid in the wrong direction around an island.
• Disturbances from metal objects (fences, reinforcement steel) or buried cables close by.
• Try moving the boundary wire.
• The product finds it hard to distinguish the signal from another product installation close by.
• Put the product in the charging station and generate a new loop signal.
• Slope too steep
• The product stopped because the slope is too steep.
• Change the installation of the boundary wire to not include this steep part of the work area. Refer to To put the boundary wire in a slope on page 15.
• Empty battery
• The product cannot find the charging station.
• Change the position of the guide wire. Refer to To install the guide wire on page 18.
• The battery is at the end of its life cycle.
• Replace the battery. Refer to Battery on page 35.
• The charging station’s antenna is damaged.
• Check if the indicator lamp in the charging station flashes red. Refer to Indicator lamp in the charging station on page 42.
• The charging plates on the product or contact plates on the charging station are corroded.
• Clean the charging and contact plates using a fine grade emery cloth. If the problem stays, speak to your authorized service technician.
• Troubleshooting - 37 Battery problem
• Temporary battery or firmware related issue in the product.
• Restart the product. If the problem stays, speak to your authorized service technician.
• Incorrect type of battery.
• Use original batteries recommended by the manufacturer.
• Battery temperature outside limits
• The temperature in the battery is too high or too low to start operation.
• No action. The product will start to operate when the temperature is in limits.
• Wrong PIN code
• Wrong PIN code has been entered. Five attempts are permitted, and the keypad is then blocked for a period of time.
• Enter the correct PIN code. If the PIN code is incorrect, use the link in the app to send the
• PIN code to your registered e-mail address.
• If you have not registered the e-mail address, contact your local Husqvarna representative.
• No drive
• Slipped
• The product has got caught in something and has been slipping.
• Free the product and rectify the reason for the lack of drive. If it is due to wet grass, wait until the lawn has dried before using the product.
• The work area includes a steep slope.
• Steep slopes should be isolated. Refer to To put the boundary wire in a slope on page 15.
• The guide wire is not laid diagonally in the slope.
• Make sure that the guide wire is installed diagonally across the slope. Refer to To make a secondary area on page 16.
• Collision sensor problem, front/rear
• Collision
• The drive wheels on the product are blocked.
• Free the product and correct the cause of problem. If the problem stays, speak to your authorized service technician.
• Alarm! Mower switched off
• The alarm is activated because the product had been switched off.
• Adjust the security level in the Security menu. Refer to Security level on page 23.
• Alarm! Mower stopped
• The alarm is activated because the product has been stopped.
• Alarm! Mower lifted
• The alarm is activated because the product has been lifted.
• Alarm! Mower tilted
• The alarm is activated because the product has been tilted.
• Alarm! Mower was moved
• The alarm is activated because the product has been lifted.
• Alarm! Outside geofence
• The alarm was activated because the product was outside its GeoFence.
• 38 - Troubleshooting
• Charging station blocked
• The contact between the charging plates on the product on the and contact plates on the charging station may be poor and the product has made a number of attempts to charge.
• Put the product in the charging station and check that the charging plates and contact plates make good contact.
• An object is in the way of the product that prevents it to enter the charging station.
• Remove the object.
• The charging station is tilted or bent.
• Put the baseplate on level ground.
• The guide wire is not installed correctly.
• Check if the guide wire is installed according to the instructions. Refer to To install the guide wire on page 18.
• Stuck in charging station
• There is an object in the way of the product preventing it from leaving the charging station.
• Remove the object.
• Charging system problem
• There is corrosion or dirt on the charging plates and contact plates.
• Restart the product. Clean the charging plates on the product and the contact plates on the charging station.
• Temporary electronic or firmware problem in the product.
• Restart the product. If the problem stays, speak to your approved servicing dealer.
• Charging current too high
• Incorrect or damaged power supply unit.
• Restart the product. If the problem stays, speak to your authorized service technician.
• No power in charging station
• Incorrect or damaged power supply unit.
• Examine the power supply. If it is necessary, replace the power supply.
• Power failure.
• Find and correct the cause of the power failure.
• No contact between the contact plates and the charging plates.
• Make sure that the charging plates and the contact plates are connected.
• Trapped
• The product is stuck in a small area behind a number of obstacles.
• Remove the obstacles or create an island around the obstacles. Refer to To make an island on page 16.
• Mower tilted
• The product is tilted more than the maximum angle.
• Move the product to a flat area.
• Upside down
• The product is leaning too much or has turned over.
• Turn the product the right way up.
• Lifted
• The lift sensor has been activated as the product has been lifted.
• Check that the product body can move freely around its chassis. Remove or create an island around objects that can cause the chassis to be lifted. If the problem stays, speak to your authorized service technician.
• Troubleshooting - 39 Electronic problem
• Temporary electronic or firmware related issue in the product.
• Restart the product. If the problem stays, speak to your authorized service technician.
• Loop sensor problem, front/rear
• Tilt sensor problem
• Temporary problem
• Invalid sub-device combination
• Temporary battery problem
• Safety function faulty
• Invalid system combination
• Zone generator problem
• FlexiFence problem
• The battery of the FlexiFence accessory is low. The FlexiFence accessory does not operate when the battery is empty. The product can cut in the stay-out zone if you start the product before you charge the FlexiFence accessory.
• Park the product and charge the FlexiFence accessory before you start the product.
• The temperature in the FlexiFence accessory is a higher than the maximum limit and is set to off.
• Put the product in an area with protection from the sun. Let the temperature of the
• FlexiFence accessory decrease before you start the product.
• Destination not reachable
• The product cannot reach the destination because there is no guide wire or boundary wire within the work area.
• Edit or make a new installation of the work area in the app and include a guide or a boundary wire in the work area.
• The product cannot reach the destination because there is a stay-out blocking the way to the work area.
• Edit or remove the stay-out zone or make a new installation of the work area.
• Destination blocked
• The way of the destination is blocked by an obstacle.
• Remove the obstacle that blocks the way to the destination.
• Battery needs replacement
• The battery state of health is low.
• Replace the battery. Speak to your authorized service technician.
• Battery near end of life
• The battery state of health is critically low.
• Replace the battery. Speak to your authorized service technician.
• Invalid firmware configuration
• The firmware in the product is not updated.
• Put the product in the charging station and update the firmware via FOTA. If the problem stays, speak to your Husqvarna service.
• Map problem
• The map object file is incorrect.
• Do a check of the map in the app. Adjust the map and save it.
• Delete the map and do a new installation.
• 40 - Troubleshooting 7.3 Information and warning messages
• The information messages in the table below are shown in the display of the product. Speak to your Husqvarna representative if the same message shows frequently.
• Limited cutting height
• The cutting height adjustment cannot move.
• Examine the cutting height adjustment and remove grass or other objects. If the problem stays, speak to your approved servicing dealer.
• Unexpected cutting height adj
• Limited cutting height range
• Cutting height problem
• Cutting height blocked
• GPS navigation problem
• Problem with the GPS assisted navigation equipment.
• Speak to your local Husqvarna representative if this message appears often.
• Weak GPS signal
• The sky is blocked in large parts of the work area.
• Remove objects that can cause a blockage of the GPS signal.
• Disable the GPS navigation function and use the Lawn coverage function. Refer to GPS
• Assisted Navigation, Lawn Coverage and
• Systematic Passage Mowing on page 25.
• Settings restored
• A Reset all user settings has been done.
• Usual operation of the product.
• Guide 1 not found
• The guide wire is not connected to the charging station.
• Connect the guide wire to the charging station. Refer to To install the guide wire on page 18.
• Damage in the guide wire.
• Replace the damaged section with new guide wire.
• The guide wire is not connected to the boundary loop.
• Connect the guide wire correctly to the boundary loop. Refer to To install the boundary wire on page 18.
• Connection changed
• New loop signal changed.
• Usual operation of the product.
• Difficult finding home
• The product has been following the boundary wire several laps without finding the charging station.
• The installation has not been done correctly.
• Refer to To install the boundary wire on page 18.
• Wrong corridor width setting on boundary wire. Refer to To install the boundary wire on page 18.
• The product was started on a Secondary area with the Main area setting.
• Needs manual charging
• The product is set to the Secondary area operating mode.
• Put the product in the charging station.
• Troubleshooting - 41 Next start hh:mm
• The schedule setting prevents the product from operating.
• Change the schedule settings. Refer to Schedule on page 22.
• The product has reached its maximum cutting time for the day.
• This behavior is normal and no action is required.
• The clock or date in the product is not correct.
• Set the time. Refer to To set the time & date on page 29.
• Today's mowing completed
• The product has reached its maximum cutting time for the day.
• This behavior is normal and no action is required. Refer to Schedule on page 22.
• Connectivity problem
• Potential problem on the connectivity circuit board in the product.
• Restart the product. If the problem stays speak to your authorized service technician.
• 7.4 Indicator lamp in the charging station
• The indicator lamp in the charging station must show a solid or flashing green light for a correct installation. If not, follow the instructions in the troubleshooting guide below.
• Speak to your Husqvarna customer service for more information.
• Light
• Cause
• Action
• Green solid light
• Good signals
• Usual operation of the product.
• Green flashing light
• The signals are good and ECO mode is enabled.
• Usual operation of the product. Refer to ECO mode on page 28.
• Blue flashing light
• The boundary wire is not connected to the charging station.
• Make sure that the boundary wire is correctly installed in the charging station. Refer to To install the boundary wire on page 18.
• Damage in the boundary wire.
• Find out where the damage is. Replace the damaged section with new boundary wire.
• Red flashing light
• Interference in the antenna of the charging station.
• Speak to your Husqvarna customer service.
• Red solid light
• Error in the circuit board or incorrect power supply in the charging station. The error must be corrected by an authorized service technician.
• Speak to your Husqvarna customer service.
• 42 - Troubleshooting 7.5 Symptoms
• If the product does not operate as usual, follow the symptoms table below. Speak to your Husqvarna customer service if you cannot find the cause for the fault.
• Symptoms
• Cause
• Action
• The product has difficulty docking.
• The guide wire is not put straight in a line and correct distance from the charging station.
• Do a check of the installation of the charging station. Refer to To install the charging station on page 18 The guide wire is not put in the slot in the charging station plate.
• Make sure that the guide wire is put straight in a line and put in the slot in the charging station plate. Refer to To install the guide wire on page 18.
• The charging station is not on a level surface.
• Put the charging station on a level surface.
• Refer to To examine where to put the charging station on page 13.
• The product operates at the wrong time
• The time or the date in the product is not correct.
• Set the time or date. Refer to To set the time
• & date on page 29.
• The start and stop times for operating are incorrect.
• Change the Schedule settings. Refer to Schedule on page 22.
• The product vibrates.
• The cutting system is not in balance because of damaged blades.
• Examine the blades and screws and replace them if necessary. Refer to Replacement of the blades on page 34.
• The cutting system is not in balance because of too many blades in the same position.
• Do a check that only one blade is attached at each screw.
• Different thickness of blades are installed on the product.
• Do a check if the blades are of different thickness and replace if necessary.
• The product operates, but the blade disc does not rotate.
• The product searches for the charging station, or is moving to the starting point.
• Usual operation for the product. The blade disc does not rotate when the product is searching for the charging station.
• The product operates for shorter periods than usual between charges.
• Grass or other object causes a blockage to the blade disc.
• Remove and clean the blade disc. Refer to To clean the chassis and blade disc on page 33.
• The battery is at the end of its life cycle.
• Replace the battery. Refer to Battery on page 35.
• Blunt blades. More energy is necessary when cutting the grass.
• Replace the blades. Refer to Replacement of the blades on page 34.
• Mowing and charging times are shorter than usual.
• The battery is at the end of its life cycle.
• Replace the battery. Refer to Battery on page 35.
• Troubleshooting - 43 Symptoms
• Cause
• Action
• The product is parked for hours in the charging station.
• The product has operated the maximum cutting time for the day.
• No action. Refer to Schedule on page 22.
• The hatch is closed but the START button is not pushed.
• Push the STOP button to open the hatch.
• Enter the PIN code and confirm with the OK button. Push the START button and then close the hatch.
• Parking mode is enabled.
• Change the operating mode. Refer to Operating modes - Start on page 31.
• The product does not operate if the battery temperature is too high or too low.
• Make sure that the charging station is put in an area with protection from the sun.
• Uneven mowing results.
• The product operates for a small number of hours per day.
• Increase the cutting time. Refer to Schedule on page 22.
• For the shape of the work area it is necessary to adjust the settings for Lawn Coverage to cover all parts of the work area.
• Change the settings of the areas where the product starts to cut and how often. Refer to GPS Assisted Navigation, Lawn Coverage and Systematic Passage Mowing on page 25.
• The work area is too large.
• Decrease the size of the work area or extend the schedule. Refer to Schedule on page 22.
• Blunt blades.
• Replace all the blades. Refer to Replacement of the blades on page 34.
• Long grass in relation to the set cutting height.
• Increase the cutting height and then lower it when the grass is shorter.
• Collection of grass by the blade disc or around the motor shaft.
• Remove the collection of grass and clean the product. Refer to Clean the product on page 33.
• The battery is empty and you put the product in the charging station, but it does not charge and cannot be set to ON.
• If the battery has been deeply discharged, it will take a long time to charge the battery and before the product can be set to ON.
• Keep the product in the charging station for 24 hours and test if the product can be set to ON. If the problem remains, speak to your authorized service technician.
• 7.6 Find breaks in the loop wire
• Breaks in the loop wire are usually the result of unintentional physical damage to the wire such as when gardening with a shovel. In countries with ground frost, also sharp stones that move in the ground can damage the wire. Breaks can also occur due to the wire being
• stretched excessively during installation.
• Mowing the grass too low right after the installation can damage wire insulation. Damage to the insulation may not cause disruptions until several weeks or months later. To avoid this, always select the maximum cutting height the first weeks after installation and then lower
• the height one step at a time every second week until the desired cutting height has been reached.
• A damaged splicing of the loop wire can also lead to disruptions several weeks after the splice was done.
• A faulty splice can, for example, be the result of the coupler not being pressed together hard enough with a pair of pliers, or that a coupler of lower quality than the original coupler has been used. Please first check all known splices before further troubleshooting is done.
• A wire break can be located by gradually halving the distance of the loop where the break may have occurred until there is only a very short section of the wire left.
• The following method does not work if ECO mode is activated. Make sure first that ECO mode is switched off. Refer to ECO mode on page 28.
• 1.
• Check that the indicator lamp in the charging station flashes blue, which indicates a break in the boundary loop. Refer to Indicator lamp in the charging station on page 42.
• 44 - Troubleshooting 2.
• Check that the boundary wire connections to the charging station are properly connected and not damaged. Check that the indicator lamp in the charging station is still flashing blue.
• 3.
• Switch the connections between the guide wire and the boundary wire in the charging station.
• Start by switching connection AL and GUIDE.
• If the indicator lamp has a solid green light, then the break is somewhere on the boundary wire between AL and the point where the guide wire is connected to the boundary wire (thick black line in the illustration).
• Guide
• AL
• GUIDE
• To rectify the fault you will need boundary wire, connector(s) and coupler(s):
• a) If the suspected boundary wire is short then it is easiest to exchange all of the boundary wire between AL and the point where the guide wire is connected to the boundary wire (thick black line).
• b) If the suspected boundary wire is long (thick black line) then do as follows: Put AL and GUIDE back to their original positions. Then disconnect
• AR. Connect a new loop wire to AR. Connect the other end of this new loop wire at the middle of the suspected wire section.
• AR
• If the indicator lamp now is green, then the break is somewhere in the wire between the disconnected end to the point where the new wire is connected (thick black line below). In that case, move the connection for the new wire closer to the disconnected end (roughly at the middle of
• the suspected wire section) and check again if the indicator lamp is green.
• Troubleshooting - 45 Continue until only a very short section of the wire remains which is the difference between a solid green light and a flashing blue light. Then follow instruction in step 5 below.
• 4.
• If indicator lamp still flashes blue in step 3 above: Put AL and GUIDE back in their original positions. Then switch AR and GUIDE. If indicator lamp now is lit with a solid green light then disconnect AL and connect a new boundary wire to AL. Connect the other end of this new wire at
• the middle of the suspected wire section. Follow the same approach as in 3a) and 3b) above.
• 5.
• When the break is found, the damaged section must be replaced with a new wire. Always use original couplers.
• 46 - Troubleshooting 8 Transportation, storage and disposal