Honda HRM300 Manual page 284

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"Rollover sensor" MESSAGE
Turn the mower upside down and then check
whether tilt sensor or rollover sensor detects it
and warning screen is displayed.
Not displayed
Test the rollover sensor (page 3-40).
Normal
Calibrate the tilt sensor (page 3-43).
Fault reset
Temporary failure.
"Manual stop" MESSAGE
Test two stop switches react in the manual stop
in test mode (page 3-36).
Not react
Replace the stop switch with a new one (page
7-3), and then recheck the fault message in the
display.
Abnormal
Main ECU trouble.
Replace the main ECU (page 10-7).
"Battery Error" MESSAGE
Connect new battery to the mower and check message again.
• HRM300: 1P battery
• HRM500: 2P battery
"Motor ECU Error" MESSAGE
Main ECU trouble.
Replace the main ECU (page 10-7).
Displayed
Temporary failure.
Abnormal
Main ECU trouble.
Replace the main ECU (page 10-7).
Fault does not reset
Main ECU trouble.
Replace the main ECU (page 10-7).
React
Check the stop switch installation (page 7-3).
Normal
Faulty original stop switch.
TROUBLESHOOTING
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