ResMed VPAP II, User Manual, Page: 22 / 193

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ROUBLESHOOTING
Problem Possible cause Solution
Flow generator does not
start when you press the
Start/Stop or Delay
Timer button (and the
LCD screen is blank)
Power cord is not connected properly Check both ends of the power cord
Flow generator is not switched on Switch on main switch at rear of unit
Power outlet may be faulty Try another power outlet
SmartStart is enabled but
flow does not start when
you begin breathing in
the mask Breath is not deep enough to trigger
SmartStart Take a deep breath in and out
through the mask
Mask, mask/valve or mask/humidifier
combination interfering with
SmartStart triggering Use Start/Stop button
Excessive leak •Adjust position of mask and
headgear
•Plugs may be missing from ports on
mask; replace them
•Air tube not connected properly;
connect air tube firmly at both ends
•Air tube kinked or punctured;
straighten or replace air tube
SmartStart not enabled ( does not
appear on the LCD screen)
Use Start/Stop button
Air leaking around nose
and eyes Nasal cushion not fitted properly onto
mask frame Fit cushion properly
Mask and headgear straps not
positioned correctly Adjust position of mask and headgear
(Note: tighter is not always better)
Plugs missing from mask ports Replace plugs
Nasal cushion torn or distorted Replace cushion
SmartStart is enabled,
but the flow generator
does not stop
automatically when you
remove your mask
SmartStart not enabled ( does not
appear on the LCD screen)
Use Start/Stop button
Mask, mask/valve or mask/humidifier
combination interfering with
SmartStart triggering Use Start/Stop button
Mask alarm enabled ( M appears on
the LCD screen)
(continued over page)
SmartStart will not stop the flow
automatically when the Mask Alarm is
enabled; use the
Start/Stop button