Weinmann BiLevel-ST VENTImotion WM 24800, Инструкции по обслуживанию и ремонту

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28 Malfunctions and rectification
6. Malfunctions and rectification
6.1 General faults
Malfunction Cause Rectification
No running noise, standby
and operating displays do
not light up.
No power supply.
Check connection of power supply cable in device socket.
Check mains voltage with another device, if necessary (for example a
lamp), replace power supply cable if necessary.
Mains supply unit defective. Replace mains supply unit (7.4, page 33).
Cable come loose or
defective.
Check all cable connections in the device; replace if necessary.
Control board defective. Replace control board (7.8, page 39).
Power board defective.
Replace power board (7.5, page 34). Send defective board to the
manufacturer for fault analysis.
Faulty displays or none at all
Display defective. Replace display (7.8, page 39).
Cable come loose or
defective.
Check all cable connections in the device; replace if necessary.
Control board defective. Replace control board (7.8, page 39).
Tolerance of therapy pressures
is > 0.6 hPa after 1 minute.
Control board defective. Replace control board (7.8, page 39).
Sensor hoses defective or
soiled.
Check hoses, lay correctly (7.8, page 39).
In Automatic mode, device
can
not
be switched on by
a breath being taken in.
Automatic system not active
Activate auto switch-on/switch-off
(see 4.1 of operating instructions).
Power board defective. Replace power board (7.5, page 34).
Control board defective. Replace control board (7.8, page 39).
Device is running but does
not reach the lower pres-
sure limit set.
Filter soiled. Change both filters (5.2, page 24).
Nasal mask leaking. Adjust headgear/headband so that the mask is tight.
Leak in device. Check if all hoses and gaskets are properly located.
Filter change indicator
active.
Filter soiled. Clean/change both filters (5.2, page 24).
Maintenance display
active.
Maintenance interval
exceeded.
Perform maintenance.
Internal battery discharged.
Status display of the
VENTI- O
2
lights up intermit-
tently or not at all.
No power. Check that plug contact is properly located.
Nasal mask leaking.
Adjust headgear/headband so that the mask is tight or use another mask
if necessary.
Hose leaking. Check breathing hose and pressure measurement hose.
The prescribed O
2
flow is
not reached.
O
2
supply hoses kinked. Check all hose connections.
Too high a resistance in the
hose system.
Shorten O
2
supply hoses.
Output pressure of oxygen
system too low.
If necessary, use another oxygen system, e.g. OXYMAT 3.
Water in humidifier is not
heating up.
Humidifier defective.
Test with a different humidifier, if device is defective, return humidifier to
the manufacturer.
Power board defective.
Replace power board (7.5, page 34). Send defective board to the
manufacturer for fault analysis.
Power supply cable dam-
aged.
Replace power supply cable.