22
Error
codes
Description Solution
21
Temporary EEprom problem Press the E button to deletet the error message
120
HI alert - Unit Height changed Check laser beam elevation
160 X or Y level sensor defect Contact service center
Troubleshooting
Any error message at the RC402N can be deleted with a short press of button E. The table shows the
related description and possible solutions.
The next service center should be contacted if a different error message as shown at the table will be
displayed.
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