Covidien WarmTouch, Service Manual

Page: 54 / 314

Operation
4-4 Service Manual
4.5
Beginning Operation
To begin operation:
1.
Press the On/Standby key. The unit enters Ready mode:
•
The status LED turns green, and the display turns on.
•
A short tone indicates a successful power-on self-test (POST). If POST is unsuc-
cessful, an alarm screen appears. See
Alarms on page 6-12.
•
The Main screen appears ( Figure 4-1 ). Note that if the filter needs to be
replaced, the Replace Filter screen appears instead of the Main screen
(
Figure 4-2 ).
Figure 4-1. Main Screen at Power-On
Figure 4-2. Replace Filter Screen at Power-On
2.
If you see the Replace Filter screen, follow the procedure Filter Replacement on
page 5-4. It is possible to continue operation; however, failure to replace the filter