Troubleshooting; Error Messages In The Display - Leica CM1860 Instructions For Use Manual

8.

Troubleshooting

8.1

Error messages in the display

Error messages are displayed on the clock panel as follows
messages might occur during operation:
Fig. 53
Error Cause
20 Calibration error; possibly defective controller board.
21 Clock battery on the controller board empty.
23 The cryochamber temperature is outside the display range
from 35 °C to –55 °C.
25 Temperature sensor for cryochamber temperature defective. Call service.
27 Temperature sensor for defrost limiter defective.
28 Both light barriers in the handwheel active.
29 Service interval warning after 15960 hours.
30 Service interval expired after 17610 hours.
Note
If errors occur, they are output as error codes in the real-time display during normal operation with the
format EO:XX (→ "Fig. 53").
• In normal operation, the error displayed can be acknowledged by pressing any key once. Error codes
21-28 are self-acknowledging if their cause has been eliminated.
• After 15960 hours,
The display alternates between
pressing a key on the keyboard. The
• After 17610 hours,
The display alternates between
pressing a key on the keyboard. The
Leica CM1860/CM1860 UV
HELP is output in the real-time display to indicate the need for service maintenance.
HELP and the real-time display. The message is acknowledged by
HELP display keeps appearing at a relatively long interval.
HELP is output in the real-time display to indicate the need for service maintenance.
HELP and the real-time display. The message is acknowledged by
HELP display keeps appearing at a relatively short interval.
Troubleshooting
EO: XX (→ "Fig. 53"). The following error
Remedy
Switch the instrument off for
10 seconds and then back on.
If the error is displayed again:
Call service.
Call service.
Eliminate cause.
Call service.
Call service.
Call service.
Call service.
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