Operation steps why the breast enhancement machine does not have enough air to vacuum,the button to turn up does not work

We received one customer complain, he received the AU-6802 breast enhancement last month, but the machine does not have enough air to vacuum, the button up does not work.

He does not send us a video, so we dont have any information about how he operate the machine. after some research, we found out the problem on the operation.

He start the machine and press the up button directly. Infact, after start the machine, there are three models for selection: Auto A, auto B and manual. Press “start”, if you would like to adjust the time in your choose,  should be press ” Manual”, then press the up button. Please follow the photo instruction:  

For the vacuum power too week,  there is a round adjuster below the gas pressure meter.

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