Hill-Rom Advanta P1600, Service Manual

Page: 74 / 429

Function Checks
Chapter 2: Troubleshooting Procedures
Page 2 - 8 Advanta™ Bed Service Manual (man168ra)
Pneumatic Subsystem Troubleshooting
The pneumatic subsystem is comprised of the following five components:
•
Bladders, both the top and lower
• Hoses and hose fittings
• Air P.C. board
• Solenoids and valves
• Compressor
1. Initial Actions have been performed.
Yes No
↓ →
Perform “Initial Actions” on page 2-5.
2. The bed is plugged into an appropriate power source.
Yes No
↓ →
Plug the bed into an appropriate power source.
3. The air system surface power switch is turned on.
Yes No
↓ →
Turn the air system surface power switch on.
4. The electrical connections are secure.
Yes No
↓ →
Securely connect all electrical cables.
5. The pneumatic hose connections are tight, and the coupling O-rings are not
damaged.
Yes No
↓ →
Replace damaged O-rings and ensure that all pneumatic hose
connections are tight.
6. Refer to the repair and analysis procedures in this chapter to isolate the
problem if the preceding checks do not correct the problem.
NOTE:
If the excessive air loss LED is on, reset the air system before you can start
troubleshooting using table 2-1 on page 2-11. To do this, turn the air system
surface power switch off, and then back on.
PPM Function Check
1. Unplug the PPM sensor cable to be checked from the PPM micro P.C.
board.