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Reference
Automower 405X and 415X: what each manual message means
What Husqvarna's operator's manual says each fault and information message means on the Automower 405X and 415X wire models, and what to do, with the station lamp and the symptoms it lists.
- Models
- Automower 405X and 415X (wire, 2023 manual)
- Last updated
- 25 Oct 2026
Automower 405X and 415X (wire, 2023 manual)Details
- Models
- Automower 405X and 415X (wire, 2023 manual)
- Last updated
- 25 Oct 2026
On this page
- 405X and 415X: what stops the mower
- 405X and 415X: battery and charging
- 405X and 415X: lift, tilt, alarms and the rest
- 405X and 415X: information messages and the station lamp
- 405X and 415X: symptoms with no message
- What the tables do not tell you
- Nothing here matches your symptom?
- If your code isn't here
- Sources
Husqvarna names its messages; it does not number them. Each shows what the mower's display shows: a name such as "Trapped" or "No loop signal", then the cause and the action. It may show the name in your own language; we give the manual's English.
405X and 415X: what stops the mower
From the 405X and 415X manual (2023), fault messages, pages 36 to 40. This manual says these messages are shown in the display of the product1.
| Message | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| No loop signal | Eight causes are listed: the power supply or low-voltage cable is not connected, or is damaged; the boundary wire is not connected to the station, or is broken; ECO mode is on and the product started outside the station; the wire is crossed on its way to and from an island; the pairing between the product and the station is lost; metal objects or buried cables close by | If the station's lamp is not lit there is no power: check the outlet, the residual-current device and the low-voltage cable. Check the wire connectors and replace any damaged one; replace a broken section with new wire and an original coupler; put the product in the station, start it and close the hatch; lay the wire as instructed around an island; create a new loop signal; move the wire or make islands1 |
| Connection NOT changed | The change of loop signal failed | Try to create a new loop signal several times; if it stays, speak to your authorized service technician1 |
| Wheel motor blocked; Wheel motor overloaded; Wheel drive problem (left or right) | Grass or an object is wrapped around the drive wheel. The manual prints one cause and one action against all three messages | Clean the wheels and around the wheels1 |
| Cutting system blocked | Three causes. The first is printed as grass or an object wrapped around the drive wheel, the same words as the wheel rows above; the others are the blade disc lying in a pool of water, and grass that is too high | The first action is the wheel row's. Move the product and stop water collecting in the work area. Cut the grass before you install the product, to a maximum of 10 cm / 3.9 in1 |
| Cutting system imbalance | Too few or too many blades | Check the blades on the blade disc1 |
| Outside working area | Six causes: the wire connections at the station are crossed; the wire is too close to the edge of the work area; the work area slopes too much by the loop; the wire is laid the wrong way round an island; metal objects or buried cables close by; the signal is hard to tell from another installation close by | Check the wire is connected correctly and laid as the instructions say; try moving the wire; put the product in the station and create a new loop signal1 |
| Slope too steep | The product stopped because the slope is too steep | Change the wire installation so the work area leaves out the steep part1 |
| No drive; Slipped | The product is caught in something and slipping; the work area includes a steep slope; the guide wire is not laid diagonally in a slope. The manual prints the two names against the same rows | Free the product, and wait for wet grass to dry; isolate steep slopes; lay the guide wire diagonally across the slope1 |
| Collision sensor problem, front or rear; Collision | The drive wheels on the product are blocked. The manual prints the two names against one cause and action | Free the product and correct the cause; if the problem stays, speak to your authorized service technician1 |
| Charging station blocked | Poor contact between the charging plates and the station's contact plates after several tries; an object in the way; the station is tilted or bent; the guide wire is not installed correctly | Check the plates make good contact; remove the object; put the baseplate on level ground; check the guide wire against the instructions1 |
| Stuck in charging station | An object in the way stops the product leaving | Remove the object1 |
| Trapped | The product is stuck in a small area behind a number of obstacles | Remove the obstacles, or make an island around them1 |
| Destination not reachable | There is no guide wire or boundary wire within the work area; or a stay-out zone blocks the way to the work area | Edit or remake the work area in the app and include a guide or boundary wire; or edit or remove the stay-out zone1 |
| Destination blocked | An obstacle blocks the way to the destination | Remove the obstacle1 |
| 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 it stays, speak to your Husqvarna service1 |
| Map problem | The map object file is incorrect | Check the map in the app, adjust it and save it; or delete the map and do a new installation1 |
405X and 415X: battery and charging
Pages 37 to 41 of the same manual1.
| Message | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| Empty battery | Four causes: the product cannot find the station; the battery is at the end of its life cycle; the station's antenna is damaged; the charging plates or contact plates are corroded | Change the position of the guide wire; replace the battery; check whether the station's lamp flashes red; clean the charging and contact plates with a fine emery cloth, and if it stays, speak to your authorized service technician1 |
| Battery problem | A temporary battery or firmware issue; or the wrong type of battery | Restart the product, and if it stays speak to your authorized service technician; use the original batteries the manufacturer recommends1 |
| Battery temperature outside limits | The battery is too hot or too cold to start | No action: the product starts when the temperature is within limits1 |
| Battery needs replacement | The battery's state of health is low | Replace the battery; speak to your authorized service technician1 |
| Battery near end of life | The battery's state of health is critically low | Replace the battery; speak to your authorized service technician1 |
| Charging system problem | Corrosion or dirt on the charging plates and contact plates; or a temporary electronic or firmware problem | Restart the product and clean the charging plates on the product and the contact plates on the station; or restart, and if it stays speak to your approved servicing dealer1 |
| Charging current too high | An incorrect or damaged power supply unit | Restart the product; if it stays, speak to your authorized service technician1 |
| No power in charging station | An incorrect or damaged power supply unit; a power failure; no contact between the contact plates and the charging plates | Examine the power supply and replace it if necessary; find and correct the cause of the power failure; make sure the plates are connected1 |
| Needs manual charging | The product is set to the Secondary area operating mode | Put the product in the charging station1 |
405X and 415X: lift, tilt, alarms and the rest
Pages 38 to 421.
| Message | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| Lifted | The lift sensor was activated because the product was lifted | Check that the body moves freely around its chassis; remove, or make an island around, objects that can lift the chassis; if it stays, speak to your authorized service technician1 |
| Mower tilted | Tilted more than the maximum angle | Move the product to a flat area1 |
| Upside down | Leaning too much, or turned over | Turn it the right way up1 |
| Alarm! Mower switched off; stopped; lifted; tilted; was moved; Outside geofence | The alarm was activated because the product was switched off, stopped, lifted or tilted, was lifted (for Mower was moved), or was outside its GeoFence, one row for each | Adjust the security level in the Security menu1 |
| Wrong PIN code | A wrong code was entered; five tries are allowed, then the keypad is blocked for a period | Enter the right code; if you do not have it, use the link in the app to send the PIN code to your registered e-mail address; if you have not registered one, contact your local Husqvarna representative1 |
| Next start hh:mm | The schedule stops the product operating; it has reached its maximum cutting time for the day (normal); or its clock or date is wrong | Change the schedule; no action; set the time and date1 |
| Today's mowing completed | It has reached its maximum cutting time for the day | Normal, no action needed1 |
| Electronic problem; Loop sensor problem, front or rear; Tilt sensor problem; Temporary problem; Invalid sub-device combination; Temporary battery problem; Safety function faulty; Invalid system combination | The manual prints one cause and one action against all eight: a temporary electronic or firmware issue | Restart the product; if the problem stays, speak to your authorized service technician1 |
| Zone generator problem; FlexiFence problem | The FlexiFence accessory's battery is low, so it does not work and the product can cut in the stay-out zone if started before the accessory is charged; or the accessory is hotter than its maximum limit and has switched itself off | Park the product and charge the accessory before you start it; put the product in a place protected from the sun and let the accessory cool1 |
| Connectivity problem | A potential problem on the connectivity circuit board | Restart the product; if it stays, speak to your authorized service technician1 |
405X and 415X: information messages and the station lamp
The manual's section 7.3, Information and warning messages, and the lamp table, on pages 41 and 421.
| Message or lamp | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| Limited cutting height; Unexpected cutting height adj; Limited cutting height range; Cutting height problem; Cutting height blocked | The cutting height adjustment cannot move | Examine the adjustment and remove grass or other objects; if it stays, speak to your approved servicing dealer |
| GPS navigation problem | A 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 block the GPS signal; switch off the GPS navigation function and use the Lawn coverage function |
| Settings restored | A Reset all user settings was done | Usual operation |
| Guide 1 not found | The guide wire is not connected to the station; the guide wire is damaged; or it is not connected to the boundary loop | Connect the guide wire to the station; replace the damaged section; connect it correctly to the boundary loop |
| Connection changed | The loop signal was changed | Usual operation |
| Difficult finding home | The product followed the boundary wire for several laps without finding the station | The action column prints three lines: the installation was not done correctly; the corridor width setting on the boundary wire is wrong; the product was started on a Secondary area with the Main area setting |
| Lamp: green, solid | Good signals | Usual operation |
| Lamp: green, flashing | Good signals and ECO mode is on | Usual operation |
| Lamp: blue, flashing | The boundary wire is not connected to the station, or is damaged | Check the wire is installed correctly in the station; find the damage and replace that section |
| Lamp: red, flashing | Interference in the station's antenna | Speak to Husqvarna customer service |
| Lamp: red, solid | An error in the circuit board, or the wrong power supply, in the station. The manual says an authorized service technician must correct it | Speak to Husqvarna customer service |
405X and 415X: symptoms with no message
Pages 43 and 44 list problems the product shows without a message1.
| Symptom | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| Difficulty docking | The guide wire is not in a straight line and at the right distance from the station; it is not in the slot in the station plate; the station is not on a level surface | Check the station installation; put the guide wire straight and in the slot; put the station on level ground |
| Operates at the wrong time | The time or date is wrong; the start and stop times are wrong | Set the time and date; change the schedule |
| Vibrates | Damaged blades; too many blades in one position; blades of different thickness | Examine the blades and screws; check one blade at each screw; replace blades if needed |
| Operates but the blade disc does not turn | The product is searching for the station, or moving to the starting point | Usual: the blade disc does not turn while it searches for the station |
| Operates for shorter periods than usual between charges | Grass or an object blocking the blade disc; the battery is at the end of its life cycle; blunt blades | Remove and clean the blade disc; replace the battery; replace the blades |
| Mowing and charging times are shorter than usual | The battery is at the end of its life cycle | Replace the battery |
| Parked for hours in the station | It has done the maximum cutting time for the day; the hatch is closed but START was not pushed; Parking mode is on; the battery is too hot or too cold to operate | No action; press STOP to open the hatch, enter the PIN, push START and close the hatch; change the operating mode; put the station in a place protected from the sun |
| Uneven mowing | Few operating hours a day; the Lawn Coverage settings do not reach all parts; the work area is too large; blunt blades; long grass for the cutting height; grass collected on the blade disc or motor shaft | Increase cutting time; change the Lawn Coverage settings; make the area smaller or the schedule longer; replace all the blades; raise the cutting height and lower it as the grass gets shorter; clean the product |
| The battery is empty, the product is in the station, but it does not charge and cannot be set to ON | A deeply discharged battery takes a long time to charge before the product can be set to ON | Keep the product in the charging station for 24 hours and test whether it can be set to ON; if the problem remains, speak to your authorized service technician |
What the tables do not tell you
They say what Husqvarna tells owners to do. They say nothing about how often a message appears or whether the action works. The owner-report pages in the fault and error message reference are for that. A message name that is not on this page may still be in your manual.
Nothing here matches your symptom?
A fault that isn't listed here doesn't mean nothing is wrong with your mower. The manufacturer's own manual is linked from this page, and the guides for this brand are listed on its overview.
Found something we don't cover yet? Send us the details — that's how the next owner finds it documented.
If your code isn't here
-
Find the message the mower shows in the tables on this page. Read the manual's cause and action for it. Many messages list more than one cause: read them all before you act.
More about this step
Applies when: the app or the mower shows a message.
Worked if: you have Husqvarna's own action for that message, not a forum guess at what it means.
Didn't work? Next: step 2 — Look at the lamp on the charging station. A wire model should...
Method: the fault and information message tables in Husqvarna's 405X and 415X operator's manual, read row by row for this page
-
Look at the lamp on the charging station. A wire model should show solid or flashing green. A flashing blue lamp is the manual's sign that the boundary wire is not connected to the station or is damaged; a flashing red lamp, a problem with the station's antenna; a solid red lamp, an error in the circuit board or the power supply.
More about this step
Applies when: the message is about the loop signal, the charging station or leaving or finding it, or the mower stops with no message you can match.
Worked if: you know whether the problem is the station and its wire rather than the mower.
Didn't work? Next: step 3 — Open the owner-report page for your message. Find it from the...
Method: the charging-station lamp table in the manual
-
Open the owner-report page for your message. Find it from the table on the fault and error message reference, to see what other owners found and how many of them found it.
More about this step
Applies when: the manual's action did not fix it, or your message is in that table.
Worked if: you have what owners actually did about it, beside what the manual says.
Didn't work? Next: step 4 — Speak to your Husqvarna representative or approved servicing...
Method: the owner-report pages named in that table; what they hold is stated on each
-
Speak to your Husqvarna representative or approved servicing dealer. Do this if the same message keeps coming back, as the manual says.
Stop and get help if
the station lamp is solid red: the manual says an authorised service technician must correct that, so leave the station alone.
More about this step
Applies when: the message comes back after you have followed the manual's action.
Worked if: someone with the diagnostic tool reads the mower, or you know the dealer's terms.
Method: the manual's own wording on repeated messages
Sources
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