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

Page: 30 / 64

30 Malfunctions and rectification
First line:
code number
Second line:
1 at position ...
Cause Rectification
1 1
Clock not responding
or
battery discharged
Replace battery on control board (see section
7.9 on page 42).
If fault occurs again, replace control board
(see section 7.8 on page 39).
Replace fan or fan box. (see section 7.7 on
page 37).
Replace power board (see section 7.5 on
page 34).
2 2 EEPROM not responding
Replace control board (see section 7.8 on
page 39).
4 3
Transmitting fault at the
serial connections.
Replace control board (see section 7.8 on
page 39).
If this occurs on final test bench, please
inform QM.
8 4
Sensor measurement has
failed plausibility test. Replace control board (see section 7.8 on
page 39).
16 5
Fan has failed or fan not
starting up. Either there is
no 40 V supply or there is
a defect on the fan.
Check cable connections between fan,
power board and control board.
Replace fan or fan box (see section 7.7 on
page 37).
Replace power board (see section 7.5 on
page 34).
128 8
Humidifier current is out-
side permitted values. Replace power board (see section 7.5 on
page 34).
256 9
EEPROM has failed
checksum test. Replace control board (see section 7.8 on
page 39).
512 10
Sensor calibration data in
EEPROM invalid. Replace control board (see section 7.8 on
page 39).
1024 11
Pressure sensor measured
values outside tolerance
Check external and internal pressure meas-
urement hoses for blockages.
Replace control board (see section 7.8 on
page 39).
2048 12
There are invalid therapy
parameter values in the
EEPROM.
Replace control board (see section 7.8 on
page 39).
If this occurs on final test bench, please
inform QM.
4096 13
Data inconsistency, possi-
bly battery discharged Replace battery on control board (see section
7.9 on page 42).
8192 14
No communication with
EEPROM. Replace control board (see section 7.8 on
page 39).
16384 15
Communication with
watchdog failed. Replace control board (see section 7.8 on
page 39).
32768 16
Software fault
Replace control board (see section 7.8 on
page 39).