First you need know, it’s scent machine, not a normal diffuser. It does not work all the time, it will work 3-10s (depends on the model) or the time you set, then pause for 2-10mins which you can set too.

- Check if the power is on or off.

- If there is no diffusion or it is weak, replace the oil with rubbing alcohol and run it through the machine for 5mins.

-  Check the youtube video to get the way how to clean the pump core and the tube.
  https://www.youtube.com/watch?v=BL4-cU7WLpY

1. Bottle is loose. Screw it in properly.

2. Seal is broken or missing. Replace the supplied seal that came with the machine.

Most oils can be used in this machine. But we suggested that do not use the oils which is for the reed diffuser, and do not add any water.
And we recommend that you use the JCLOUD essential oils for your scent air machine.

If you do not want to download the app, the machine also can work. But it will work as the default set. Working the lowest grade.

Check the google link to see how to set for your machine, and how to download the app.
https://drive.google.com/drive/folders/1YwrbnaPdSGroq0q2p8jnplksFca7hxYM?usp=drive_link