Troubleshooting - Weinmann homecare SOMNOcomfort 2 Servicing And Repair Instructions

6. Troubleshooting

Malfunction
No mechanical sound, ready
and operating indicator is off.
No mechanical sound after
operating indicator turns on.
Defective or no display.
Pressure tolerance of the CPAP is
> 1 hPa after 1 minute.
Unit will not switch on by
breathing into the mask while in
automatic mode.
Unit is running but does not
reach CPAP pressure level
selected.
Unit does not switch off after
approx.15 seconds once mask
is removed.
Filter change indicator
the display.
Cause
No power.
Fuse defective.
Flat cable connection of the
display has slipped from the
socket.
Supply connection line 64 loose
or defective.
Main circuit board defective.
If the powerpack's LED is off:
Power supply defective.
Motor is not turning.
Fan connection line loose or
defective.
Display defective.
Main circuit board defective.
Automatic mode switched off.
Main circuit board defective.
Using a full-face mask with
integrated exhalation system.
Filter soiled.
Mask leaking.
Cover or humidifier not attached/
inserted.
Pressure measurement tube kinked
or loose.
Automatic switch on/off not
activated.
Using a high-resistance mask (e.g.
"nasal pillow" masks).
on Filter soiled, end of filter life cycle
reached.
Rectification
Check connections between the power supply
cable and the unit, wall outlet respectively.
Check the power source with another device
(e.g. lamp) if necessary.
If necessary, replace power supply cable.
Replace fuse (Chapter 7.8, Page 27).
Check connection to main circuit board
(Chapter 7.6, Page 25).
Reattach (Chapter 7.5, Page 24) or replace line
(Chapter 7.12, Page 31).
Replace main circuit board (Chapter 7.6,
Page 25).
Replace powerpack.
Replace main circuit board (Chapter 7.6,
Page 25).
Replace fan (Chapter 7.11, Page 30).
Reattach (Chapter 7.6, Page 25) line or replace
fan (Chapter 7.11, Page 30).
Replace display (Chapter 7.9, Page 27).
Replace main circuit board (Chapter 7.6,
Page 25).
Activate automatic mode (see 4.1 of the
instructions for use).
Replace main circuit board (Chapter 7.6,
Page 25).
Automatic on is not an option with this type of
mask (see instructions for use for
SOMNObalance/SOMNObalance e, Section
4.4 "Automatic on/off").
Replace both filters (Chapter 3.2, Page 11).
Adjust headgear so that mask is airtight.
Insert/attach humidifier or cover.
Attach the pressure measurement tube and close
the unit in a manner avoiding kinks.
Activate automatic mode (see 4.1 of the
instructions for use).
Automatic off is not an option with this type of
mask.
Clean/change both filters (Chapter 3.2,
Page 11).
Troubleshooting
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