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If the pump stops operating before the screen reaches full inflation, check the following possible causes:

1. Incorrect Mode Selected

• Make sure 200" Mode is selected (3.0 PSI).

• Use the mode switch button to cycle through available modes until 200" Mode appears.

2. Low Battery

• Check the battery level by short‑pressing the power button.

• If the charge is below 30 %, recharge the pump before continuing.

• One full charge provides approximately three full inflation/deflation cycles.

3. Air Leak in the Screen

• If the pump cannot reach the target pressure, there may be an air leak.

• Listen or feel around the frame for escaping air.

• Inspect the valve seal to ensure it is secure.

4. Hose Connection

• Ensure the air hose is tightly connected to the valve.

• Check for any air escaping from the connection point and reseat if necessary.

If you have any other questions, please don't hesitate to contact Nebula Customer Support at service@soundcore.com  for further assistance.