A5/A3™ Service Manual 046-001141-00 5 - 67
Repair and Troubleshooting Sensors and Valves Problems
5.4 Sensors and Valves Problems
To use Diagnostic Tests to troubleshoot the sensors or valves related failures, you must be familiar 
with the one-to-one correspondence between the menu options on the Diagnostic Tests screen and 
the actual pneumatic circuit and hardware components.
5.4.1 Correspondence with Pneumatic Circuit Components
The following figure shows the one-to-one correspondence between the sensors & valves on the 
valves-test tool screen and the actual components in the pneumatic circuit diagram.
FIGURE 5-71
5.4.2 Correspondence with Hardware Components
The following figure shows how the sampling lines of the sensors are actually connected on the 
ventilator control board.