Chapter 9 - Troubleshooting And User Messages; General Error Codes - Robomow RC304 Original Operating Instructions

Chapter 9 – Troubleshooting and User Messages

9.1 General Error Codes

• Robomow continuously monitors its operation.
It produces error codes to assist you in running it
smoothly.
• A sticker containing the most common error codes
is provided in the box. You can place it on the mower
for your convenience.
• (*) E9 (See Troubleshooting in Manual) represents
errors that are not very common, and thus they
are not shown in the above Error Code Table. If
E9 is displayed, press the LEFT arrow to receive
a detailed Error Code. Then refer to section 9.2 for
more details.
• Usually, if the mower stops, an error code is
displayed. This display stays on for 5 minutes. If
you arrive later, the display will be blank.
• To wake Robomow up and see the last error code displayed prior to stopping, press the OK button on the
mower.
The following table displays all Error Codes and gives possible causes and corrective actions:
Display Message
Stuck in Place
E1
The mower is
E2
Outside
42
Probable Cause/Event
- Robomow got stuck in place. It
cannot continue driving.
- Drive wheel motors have been
working under a severe load.
- Robomow has difficulty turning
in place because the front wheel
is blocked by a ditch or non-level
ground.
- The Perimeter Wire is too close
to the edge of the lawn.
- The Perimeter Wire has been
laid the wrong way around a
perimeter island.
- The lawn slope is too steep
along the edge.
- Robomow does not succeed to
turn in place at the edge, and it is
causing the mower to slip out of
the designated area.
- Automatic operation is initiated
while the robot is placed out of
the Perimeter Wire loop.
Robomow Error Codes Table
Stuck in Place
E1
Mower is Outside
E2
No Wire Signal
E3
Check Power
E4
Check Blade / Cutting Height
E5
Check Drive
E6
Front Wheel Problem
E7
Decrease Inactive Time
E8
See Troubleshooting in Manual
*
E9
Call Support
E5XX
Corrective Actions
- Move the mower away from this particular
location and restart operation.
- Rectify the reason for it getting stuck.
- Check the ground around the mower for
ditches or non-level ground. Fill with dirt
and level off.
- Check if the drive wheels are free to rotate
and nothing is blocking them.
- Verify that the cutting height is not set too
low for the grass condition - increase the
cutting height if needed.
- Check that the Perimeter Wire is not
too close to the edge – remove the wire
towards the inner side of the lawn.
- Confirm that the Perimeter Wire has been
laid according to the instructions in the
Manual.
- Do not include areas with very steep
slopes.
- Verify that the cutting height is not set too
low – Increase the cutting height.
- Place the mower inside the lawn and
renew the operation.