Weinmann BiLevel-ST VENTImotion WM 24800, Service And Repair Instructions

Page: 29 / 64

Malfunctions and rectification 29
6.2 Internal faults
The therapy device performs a self-test of the sen-
sor system when the on/off switch
is pressed
briefly, checking the function of the alarm. If a fault
occurs during the self-test, an error message ap-
pears in the main screen (see also "6.2 Internal
faults" on page 29).
The therapy device can detect internal faults itself
and shows them on the display. The display takes
the form either of clear text or of a code.
Fault output in clear text
Coded error messages
For faults which are not displayed with a clear text message, the therapy device issues a fault code.
– A number appears in the first line.
– The appropriate 16-digit fault code ap-
pears in the second line. Each of the 16
digits has the value "0" or "1". The position
of the 1 indicates the kind of fault involved.
A description of the cause of the fault and how to
rectify it can be found in the table below.
Note:
several errors may occur simultaneously. In
this case, a "1" will then appear at several points
in the second line. The number in the first line is the
total of all the numbers for individual faults.
Device cannot be switched
on using the film keypad.
The ribbon cable of the film
keypad has slipped out of
the connection.
Check whether the ribbon cable is correctly connected to the display
board.
Fascia film defective. Replace fascia film (7.12, page 45).
Display Cause Rectification
"Battery discharged!"
Internal battery of the device is
discharged. Change the battery (7.9,
page 42).
"Clock not set!"
Time not set on device following
battery change Set clock as described in
VENTI
motion hospital manual.
Device error; excessive pressure
(Code 32)
Pressure at mask or fan has
exceeded maximum permitted
limit value.
Check ventilation and pressure
measurement hose system for
blockages/leaks.
Pressure measurement hose
blocked
Device error, Upper temperature
limit exceeded
(Code 64)
The temperature on the power
board has reached a critical
value, e.g. as a result of opera-
tion in the bag or being in direct
sunlight.
Leave device to cool down and
operate it in the permitted ambi-
ent temperature range.
Position 1 Position 16