Yuwell 7F-3 User Manual

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TROUBLESHOOTING
Symptom Probable cause Solution
Concentrator is not
working, the yellow light
illuminate, alarm, the
display show “E3”.
1)
Compressor circuit is opened.
1)
Stop using the device, please contact
the supplier immediately.
2
) inside temperature is too high ;
2
) fan failure ; or concentrator air inlet
and air outlet blocked ;
3
) If the phenomenon is still appeared, stop using the device, please contact the
supplier immediately.
Concentrator is not
working, the yellow light
illuminate, alarm, the
display show “E4”.
1)
Compressor circuit is closed.
1)
Stop using the device, please contact
the supplier immediately.
2)
If the phenomenon is still appeared, stop using the device, please contact the
supplier immediately.
Concentrator is not
working, the yellow light
illuminate, alarm, the
display show “LL”.
1) oxygen flowrate is too low.
1) oxygen outlet or tubing ac
cessories
is blocked or kinked; or flowrate
knob is turn down.
2)
If the phenomenon is still appeared, stop using the device, please contact the
supplier immediately.
The nasal cannula is
fogged with vapor or full
of liquid drops.
(Remove the vapor or
liquid drops method:
Turn on the device and
connect the tubing to the
oxygen outlet. Use
your finger to block and
release the end of the
tubing several times to
remove the moisture and
liquid.)
1)
Poor ventilation around the
around the device, so operating
temperature is too high.
1) Make sure the device is at least 10
cm away from the walls, other jam
or heater.
2)
The water which added to
humidifier is too hot.
2) Add cold water
to humidifier.
3)
Add too many water into
humidifier.
3) Water added sho
uld between the
maximum and minimum levels in
humidifier.
4
) The device stops suddenly
during operating.
4
) Turn off the device immediately.
Restart the device to remove the
moisture and liquid.
5
) Accessory is connected to the
device. The tubing is kinked
and the device stops suddenly.
5
) Smooth the nasal cannula and
tubing.
6
) Cooling fan which mounted
inside the device stop running or
rotate slowly, make the
operating temperature is too hot.
6) Replace the cooling fan.
Note: Cut off the power first. A
nd
perform by qualified personnel only.
7) If the phenomenon is still appeared, the device can be used but please
contact the supplier.
If you have all other problems, TURN OFF the concentrator first,
use your reserve oxygen supply, and contact the supplier
immediately.

Yuwell 7F-3 Specifications

General

Brand	Yuwell
Model	7F-3
Category	Medical Equipment
Language	English