Yuwell 7F-3 User Manual (English)

Questions and Answers:

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Grant MuellerAug 17, 2025
Why is my Yuwell 7F-3 Medical Equipment concentrator working but has no oxygen output?
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  Robert GilmoreAug 17, 2025
  If your Yuwell Medical Equipment concentrator is on but the oxygen output is weak or nonexistent, check these items: 1. Make sure the power cord is securely plugged into the wall outlet. A loose connection can cause this problem. Re-insert the power cord into wall outlet securely. 2. Inspect the humidifier bottle and cap for leaks. Re-install and tighten the humidifier cap. 3. Check if the humidifier's safety valve is open. Shake the humidifier slightly to close the safety valve. 4. Ensure the oxygen output is properly connected to the humidifier without any leaks. Re-install the humidifier tubing. 5. Examine all accessories (nasal cannula, mask, humidifier, tubing, etc.) for leaks and replace any that are leaking.
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Peter BurkeAug 19, 2025
How to increase oxygen concentration in Yuwell 7F-3 Medical Equipment?
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  Ronald ArcherAug 20, 2025
  If the oxygen concentration of your Yuwell Medical Equipment is below 82%, the filter may be dirty. Clean or replace the filter.
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Terry WarrenAug 22, 2025
What to do if Yuwell 7F-3 Medical Equipment displays E1 error?
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  Christine FletcherAug 23, 2025
  If your Yuwell Medical Equipment concentrator isn't working, the yellow light is on, the alarm is sounding, and the display shows “E1”, this indicates that the system cycle pressure is too low. Clean or replace the filter. If the problem continues, stop using the device and contact your supplier immediately.
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Gary HenryAug 25, 2025
What to do if Yuwell 7F-3 Medical Equipment displays E2 error?
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  Christopher FieldsAug 26, 2025
  If your Yuwell Medical Equipment concentrator isn't working, the yellow light is on, the alarm is sounding, and the display shows “E2”, this indicates that the system cycle pressure is too high. Stop using the device and contact your supplier immediately. If the problem continues, stop using the device and contact your supplier immediately.
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Judith BarreraAug 28, 2025
How to remove vapor from Yuwell 7F-3 nasal cannula?
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  Michael HallAug 28, 2025
  To remove vapor or liquid drops from the nasal cannula of your Yuwell Medical Equipment, 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.
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Kevin ScottAug 30, 2025
What does E4 error mean on Yuwell 7F-3 Medical Equipment?
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  Lisa DennisAug 30, 2025
  If your Yuwell Medical Equipment concentrator isn't working, the yellow light is on, the alarm is sounding, and the display shows “E4”, this indicates that the compressor circuit is closed. Stop using the device and contact your supplier immediately. If the problem continues, stop using the device and contact your supplier immediately.
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Miss Melanie GonzalezSep 2, 2025
What does E3 error mean on Yuwell 7F-3 Medical Equipment?
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  Mackenzie MorganSep 2, 2025
  If your Yuwell Medical Equipment concentrator isn't working, the yellow light is on, the alarm is sounding, and the display shows “E3”, this indicates that the compressor circuit is opened. Stop using the device and contact your supplier immediately.
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cookkristinaSep 5, 2025
How to stop power interruption alarm on Yuwell 7F-3 Medical Equipment?
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  Richard CooperSep 5, 2025
  If the Yuwell Medical Equipment power interruption alarm is sounding, press the power on switch on the control panel. This should resolve the issue if the alarm is due to a simple power interruption. Check if the alarm and display are lit and the device is working.
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Charles BrewerSep 7, 2025
How to improve ventilation for Yuwell 7F-3?
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  Kelly MooreSep 8, 2025
  To prevent overheating of your Yuwell Medical Equipment due to poor ventilation, ensure the device is at least 30 cm away from walls, obstructions, or heaters.
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Rebecca GarzaSep 12, 2025
What to do if Yuwell Medical Equipment cooling fan is not working?
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  Richard GibsonSep 12, 2025
  If the cooling fan on your Yuwell Medical Equipment is not working, replace the cooling fan.