Christie LWU620i User Manual page 120

Troubleshooting
Related messages (continued)
Message
LWU720i/LHD720i/LWU620i
User's Manual - Operating Guide
A note of precaution when cleaning the air filter.
Immediately turn the power off, and clean or change the
air filter referring to the Cleaning and replacing the air
filter section of this manual. After you have cleaned or
changed the air filter, reset the filter timer (76, 111).
The button operation is not available.
Check the button you want to use (7).
118
Description
020-001279-01 Rev. 1 (10-2017)