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Automower 435X AWD: what each manual message means
What Husqvarna's operator's manual says each fault and information message means on the Automower 435X AWD, and what to do, with the station lamp and the symptoms it lists.
- Models
- Automower 435X AWD (wire, 2024 manual)
- Last updated
- 25 Oct 2026
Automower 435X AWD (wire, 2024 manual)Details
- Models
- Automower 435X AWD (wire, 2024 manual)
- Last updated
- 25 Oct 2026
On this page
Scope of this page: the tables below are Husqvarna's own fault and information messages for the Automower 435X AWD, from its operator's manual (edition line 1404 - 014, 2023)1. A message on another model can differ: the fault and error message reference lists the manual for each model, and the owner-report pages for the same messages. Each cause and action is put in plain words; the meaning is the manual's.
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.
435X AWD: what stops the mower
From the 435X AWD manual (edition line 1404 - 014 - 10.10.2023), the table of messages, pages 38 to 43. The manual says the messages are shown in the display of the product1.
| Message | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| No loop signal | Nine causes are listed: the power supply or low-voltage cable is not connected; the supply or cable 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 pairing between the product and the station is lost; the wire is crossed on its way to and from an island; metal objects or buried cables close by; the product is too far from the wire | Check the station's LED (not lit means no power), the outlet, whether an earth-fault breaker has tripped, and the low-voltage cable; replace a damaged supply or cable; check the wire connectors and replace any damaged one; find the break and replace that section with new loop wire and an original coupler (the manual points to its page on finding breaks in the loop wire); put the product in the station and start it; create a new loop signal; check the wire is installed correctly around islands; move the wire or make more islands; redo the installation so that every part of the work area is within 35 m / 115 ft of the wire1 |
| Wheel motor blocked; Wheel drive problem | Grass or an object is wrapped around the drive wheel. The manual prints one cause and one action against both messages | Examine the drive wheel and remove the grass or object1 |
| Wheel motor overloaded | The product is caught in something | Free the product and rectify the reason for the lack of drive; if it is due to wet grass, wait until the lawn has dried1 |
| Cutting system blocked | Grass or an object is wrapped around the blade disc; or the blade disc lies in a pool of water | Examine the blade disc and remove the grass or object; move the product and stop water collecting in the work area1 |
| Cutting system imbalance | Too few or too many blades | Examine the blades on the blade disc1 |
| Trapped | The product is stuck in a small area behind a number of obstacles | Look for obstacles that make it hard to move away1 |
| Slipped / No Drive | The product is caught in something and slipping; the work area includes a steep slope; the guide wire is not installed correctly in a slope | Free the product, and wait for wet grass to dry; the manual states the maximum guaranteed slope as 70% and says steeper slopes should be isolated; install the guide wire diagonally across the slope1 |
| Charging station blocked | Poor contact between the charging strips and the contact strips after several tries; an object blocks the way in; the baseplate is tilted or bent | Check the strips make good contact and clean the contact and charging plates; remove the object; put the baseplate on level ground1 |
| Stuck in charging station | The product slips on the baseplate; or an object stops it leaving | Clean the baseplate; remove the object1 |
| Outside work 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; move the wire or make more islands; 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 |
| 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 |
| Collision sensor problem, front or rear | A blockage has caused the product to stop | Remove the product from the blockage and examine the cause of the stop1 |
| Collision | The body cannot move freely around the chassis; or the body is not installed correctly in the rubber dampers | Remove dirt and unwanted material between the chassis and the body; check the rubber dampers are attached correctly in the body and the chassis, and if it stays, the message requires an authorized service technician1 |
| Weak GPS signal | The sky is obstructed in large parts of the work area | Remove obstructing objects if you can; switch off the GPS navigation function and use the lawn coverage function instead1 |
| Invalid firmware configuration | The firmware in the product is invalid | Put the product in the charging station and update the firmware via (the word after "via" is missing in the manual); if it stays, speak to your authorized service technician1 |
| 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 |
435X AWD: battery and charging
Pages 39 to 42 of the same manual1.
| Message | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| Empty battery | Three causes: the product cannot find the station; the battery is spent; the station's antenna is defective | Change the position of the guide wire and check the installation settings for finding the station; replace the battery; check whether the station's lamp flashes red1 |
| Battery temperature outside limits | The product does not operate if the battery is too hot or too cold | It starts again when the temperature is between the set limits and the schedule lets it operate; put the station in a place protected from the sun1 |
| Temporary battery problem; Battery problem | A temporary battery or firmware issue. The manual prints one cause and one action against both | Restart the product; if the problem remains, the message requires an authorized service technician1 |
| Faulty mix of batteries | The battery type is incorrect | Only use original batteries the manufacturer recommends1 |
| 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 | A wrong or faulty power supply unit | Restart the product; if the problem remains, the message requires an authorized service technician1 |
| No power in charging station | A wrong or faulty 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 rectify the cause of the power failure; make sure the plates are connected1 |
| 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 |
435X AWD: lift, tilt, alarms and the rest
Pages 39 to 421.
| Message | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| Upside down | Leaning too much, or turned over | Turn it the right way up1 |
| Mower tilted | Tilted more than the permitted slope | Move the product to a flat area1 |
| Lifted | A blockage activated the lift sensors and stopped the product | Remove the product from the blockage; if the problem remains, it requires an authorized service technician1 |
| Lifted in link arm | A blockage activated the lift sensor in the link arm and stopped the product | Remove the product from the blockage; if the problem remains, it requires an authorized service technician1 |
| Alarm! Mower switched off; stopped; was moved | The alarm was activated because the product was set to OFF, stopped or moved, one row for each | Adjust the security level in the Security menu1 |
| Alarm! Outside geofence | The alarm was activated because the mower was outside its GeoFence | Adjust the theft protection area (GeoFence) in the Automower Connect menu1 |
| Wrong PIN code | A wrong code was entered; five tries are allowed, then the product 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 |
| Electronic problem; Loop sensor problem; Tilt sensor problem; Temporary problem; STOP button problem; Ultrasonic problem; GPS navigation problem; Angular sensor problem; Switch cord problem; Invalid sub-device combination; Invalid system configuration; Lift sensor problem; Collision sensor problem | The manual prints one cause and one action against all thirteen: a temporary electronic or firmware issue | Restart the product; if the problem remains, the message requires an authorized service technician1 |
| Limited cutting height; Unexpected cutting height; Cutting height problem, drive; Cutting height blocked; Cutting height problem | The cutting height adjustment cannot move. The manual prints one cause and one action against all five | Examine the adjustment and remove grass and other unwanted material; if the problem remains, the message requires an authorized service technician1 |
| Connectivity problem | A problem with the Automower Connect module | Restart the product; if the problem remains, the message requires an authorized service technician1 |
| Connectivity settings restored | The settings for the Connect module were restored because of a fault | Check the settings and change them if needed1 |
435X AWD: information messages and the station lamp
The information messages, page 43, and the lamp table, page 441.
| Message or lamp | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| Settings restored | Confirmation that Reset all user settings was carried out | Normal, no action required |
| Guide 1/2 not found | The guide wire is not connected to the station; a break in the guide wire; or it is not connected to the boundary loop | Check the guide wire's connector is tight at the station; find the break and replace that section with new wire and an original coupler; check it is connected correctly to the boundary loop |
| Connection changed | The new loop signal was changed | No action |
| Connection NOT changed | The change of loop signal failed | Create a new loop signal, and try several times; if the problem remains, the message requires an authorized service technician |
| Slope too steep | The product stopped mowing because the slope is too steep | If it happens often, change the wire installation to leave out the steep part |
| Poor signal quality | The Connect module is assembled upside down, or the product is tilted or upside down | Make sure the product is not upside down or tilted; speak to your authorized service technician if it stays |
| ComBoard SW must be updated | The firmware in the Connect module needs to be updated | Speak to your authorized service technician to get it updated |
| Geofence problem | The GeoFence is not working because of poor or no communication with the GPS system; or the GPS signal is weak for the current work area and GPS assisted navigation cannot be used | Put the product in an area with open sky and wait about 15 minutes, and speak to your authorized service technician if it stays; if the message shows often, switch off GPS assisted navigation and use the manual Lawn coverage settings |
| Lamp: constant green | The station's signals are good | No procedure is necessary |
| Lamp: flashing green | The signals are good and ECO mode is on | No procedure is necessary |
| Lamp: flashing blue | The boundary wire is not connected to the station; or the boundary wire is damaged | Connect the wire to the station; replace the damaged section with new boundary wire |
| Lamp: flashing red | Interference in the station's antenna | Speak to your local Husqvarna representative |
| Lamp: constant red | 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 your local Husqvarna representative |
435X AWD: symptoms with no message
Pages 45 and 46 list problems the product shows without a message1.
| Symptom | Cause, per the manual | What Husqvarna says to do |
|---|---|---|
| Difficulty docking | The boundary wire is not laid in a long straight line far enough out from the station; the station is on a slope | Check the station was installed as instructed; place the station on a surface that is entirely level |
| Runs at the wrong time | The clock needs to be set; the start and stop times are wrong | Set the clock; reset the start time and change the schedule |
| Vibrates | Damaged blades; too many blades in one position; blades of different versions (thickness) | Inspect the blades and screws and replace them if necessary; check one blade at each screw; check whether the blades are of different versions |
| Runs but the blade disc does not turn | The product is searching for the station | No action: the blade disc does not turn while it searches for the station |
| 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 station for 24 hours and test whether it can be set to ON; if the problem remains, speak to your authorized service technician |
| Mows for shorter periods than usual between charges | Grass or a foreign object blocking the blade disc; the battery is spent | Remove and clean the blade disc; replace the battery |
| Mowing and charging times are both shorter than usual | The battery is spent | Replace the battery |
| Parked for hours in the station | The STOP button has been activated; Parking mode is on; the battery is too hot or too cold to operate | Make sure the START button is pushed down; select the operating mode in Automower Access or Automower Connect; check the station is in a place protected from the sun |
| Uneven mowing | Few operating hours a day; the Lawn coverage settings are wrong for the layout; the shape of the work area needs Area 1 to 5 to reach remote areas; the work area is too large; blunt blades; long grass for the cutting height; grass collected on the blade disc or motor shaft | Increase the mowing time; check the Lawn coverage settings; use Area 1 to 5 to steer the product to a remote area; limit the work area or extend the work time; replace all the blades; raise the cutting height and then lower it step by step; check the blade disc turns freely and, if not, take it off and remove grass and foreign objects |
| Not connected to the Automower Connect app | The product has not been connected to the app before and is not in the list My mowers | Pair the product with the mobile device |
| Bluetooth (short range) connection with the app, but not cellular (long range) | The product does not have a cellular connection to the app | In the Automower Connect app, select Automower Connect and do a new pairing |
| Cannot connect an additional mobile device | Only one mobile device can be connected to the product by Bluetooth at a time | Disable the app on all other connected devices; if that fails, set the connected device to OFF and start it again; if it still fails, speak to your dealer |
| The cellular connection worked before, but does not now | A problem with the cellular connectivity | Check cellular coverage in the area; disable Automower Connect in the app, enable it again and wait 1 hour; restart the product; install any new firmware offered in the app; install the newest version of the app; if the problem stays, speak to your dealer |
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
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Find the message the mower's display 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 435X AWD operator's manual, read row by row for this page
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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
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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
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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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