5 Replacing major subassemblies
21
9 Turn the unit right-side up and carefully lift off the top case, allowing the flexible cable to slip
through the top case.
Replacing the blower module assembly
Caution
The following procedures should be completed exactly as written to ensure sensor tubes
are not kinked or compressed.
If replacing the blower to reduce noise from the unit complete the procedures in
Appendix B:
Noise reduction upgrade
. The application of foam, rather than replacing the blower, may help
to reduce noise.
1 Disconnect the sensor tube and elbow from the blower outlet connector on the blower.
2 With both hands, ease the blower module up and out of the lower case.
VPAP III with top case removed
Power Supply PCB
Blower module
Flexible cable
!
Sensor tube and elbow
