GreenWorks PRO Optimow 25 - Page 7

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7
2021-03-18
Code Message Cause Action
25 No communication with GNSS-
module.
No communication with GNSS-module. 1. Replace the communication board.
2. If problem still remains change mainboard.
26 Weak GNSS signal. Weak GNSS signal for most of the time. 1. If this is a recurring error change communication
board.
2. If problem still remains it is probably because of a
lot of trees or buildings close to the installation.
27 SIM card problem. SIM card not ok. If this is a recurring error change the
communication board.
28 Communication problem with
cutting MCU.
Communication problem with Cutting
MCU.
1. Full reset of mower.
2. Replace mainboard.
29 PCBA Production data missing. Data not set or NVRAM fault (checksum
fault) in PCBA Production data area.
Mower main state = Power-up state.
Replace mainboard.
30 Mower Production data
missing.
PCBA data OK, but Device type missing
or NVRAM fault (checksum fault) in
Mower Production data area.
Mower main state = Power-up state.
Replace mainboard.
31 Mower reset to factory
settings.
NVRAM fault (checksum fault) in
Configuration data area. Data set to
factory setting.
No action needed.
32 Right wheel motor defective. Error reported by motor driver. 1. Make sure motor is not blocked.
2. If problem still remains replace the motor.
3. If problem still remains change main board.
33 Right wheel motor overloaded. High average motor current. 1. Make sure motor is not blocked.
2. If problem still remains replace the motor.
3. If problem still remains change main board.
34 Right wheel motor blocked. Wheel cannot rotate and motor current
high.
1. Make sure motor is not blocked.
2. If problem still remains replace the motor.
3. If problem still remains change main board.
35 Right wheel motor drive
system defect.
Wheel cannot rotate and motor current
low.
1. Make sure motor is not blocked.
2. If problem still remains replace the motor.
3. If problem still remains change main board.
36 Left wheel motor defective. Error reported by motor driver. 1. Make sure motor is not blocked.
2. If problem still remains replace the motor.
3. If problem still remains change main board.
37 Left wheel motor overloaded. High average motor current. 1. Make sure motor is not blocked.
2. If problem still remains replace the motor.
3. If problem still remains change main board.
38 Left wheel motor blocked. Wheel cannot rotate and motor current
high.
1. Make sure motor is not blocked.
2. If problem still remains replace the motor.
3. If problem still remains change main board.
39 Left wheel motor drive system
defect.
Wheel cannot rotate and motor current
low.
1. Make sure motor is not blocked.
2. If problem still remains replace the motor.
3. If problem still remains change main board.