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VPAP® III, VPAP III ST, VPAP III ST-A Service Manual
Replacing the power supply (VPAP III ST-A models)
1 With the blower module removed, lift the power supply out of its mounting slots.
2 Disconnect the AC cable, DC cable, PSU cable harness and the humidifier mains cable.
3 Install the new power supply, reconnecting all cables, and ensuring that the power supply is
correctly located in the mounting slots. Make sure the wires are located as shown below:
DC cable
from switch
AC cable
from switch
Humidifier
mains cable
PSU cable
harness