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3. Troubleshooting
3.1 Error Messages
This is a comprehensive list of all error messages that may be displayed on the
Robomow LCD. It lists the message, what it means and possible cause and corrective
action required to solve the problem. In every case, which the mower stops it is
recommended to see the ‘Last stop cause’ number as it gives more information about
the reason/cause of the stop (refer to paragraph 5).
Message Displayed Probable Cause/Event Corrective/User Action
Blocked path
- Bumper pressed during warm up.
- Bumper pressed for >2 sec during manual mowing.
- Bumper pressed while departing from the Docking
Station
- Bumper pressed when the mower turns into the
lawn to mow the inner area
- Move mower away from obstacle pressing on
bumper.
- Manually drive mower away from obstacle.
Calibration Req.
- Displayed on first use only - Follow prompts on LCD to calibrate mower
Charging Failure
- The charging process is not active - Contact service provider
Check Mow Height
- Mowing motors have faced over-current for too long
or some obstacle is stuck or wrapped around the
blades.
- Something is preventing a blade from rotating
freely. Severe grass accumulation under the
mowing deck; rope or similar object wrapped
around mowing blade.
- Object jammed under mower preventing blade from
rotating.
CAUTION – Remove power pack before lifting
the mower.
- Inspect blades for foreign material or debris
preventing rotation.
- Clean out accumulated grass clippings using a
wooden stick.
Check P. Switch
- Mower is trying to depart from Docking Station and
the perimeter switch is not responding
- There is a perimeter wire disconnection detected at
departure time
- Turn on the perimeter switch and check for
broken wire warning.
- Power supply/charger is not plugged properly into
the main power supply
- Charging plug is not fully inserted into the charging
socket of the mower
- The charging process has stopped due to a
temporary power loss.
- Disconnect the charging plug from the mower,
confirm power supply is plugged into the main
power receptacle and re-connect the plug to
the mower to resume charging.
Check Power
- No power to receptacle or main power is shut off - Turn power on to the main receptacle.
- The mower contacts do not touch the Docking
Station contacts
- Make sure that both mower drive wheels are
leveled with the Docking Station base (if
necessary fill the area underneath the drive
wheels with dirt)
- The mower or Docking Station contacts are dirty
- Clean the contacts with a brush or piece of
cloth
- Charging is not detected, although there is physical
contact between the mower and the Docking
Station contacts (mower is found in the Docking
Station entrance).
- Turn on the Perimeter Switch
- Confirm a good connection of the cables to the
Docking Station contacts.
- Check the Charging fuse 5A (remove the
plastic cover below the Manual Controller).
Docking problem
- Mower does not reach the Docking Station within
the time and distance limitations.
- Confirm the mower is operated in a docking
zone.
- Confirm the mower is not slipping or stuck on
its way to the Docking Station.
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