Back Pack No Liquid Troubleshooting

If you have a backpack type unit, a Byopack or Jetpack, with no liquid flow you should try the following steps to resolve or diagnose the problem.

1:  Check the electrical circuits

• Plug up or install the battery.
• Look in the clear widow on the bottom of the unit.
• There will be a GREEN light if the power connection is good.
• Turn on the unit using the main thumb button
• There should now be a GREEN and WHITE light in the window.
• Turn on the liquid pump using the trigger button
• There should now be a GREEN, WHITE, and BLUE light.
• If one is out, it indicates an issue in the electrical circuit of the system.

2: Check the Downtube assembly

• Disconnect the rubber tube from the cap assembly.
• Retrieve a little water in a small open container.
• Place the tip of the rubber tube in the water.
• Turn on the unit and initiate the sprayer.
• If the down tube is defective, fluid will start flowing.
• If fluid is not flowing proceed to step 3.

3: Prime/Purge the liquid system

• Retrieve a small syringe if you have one or a hand sprayer will work

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• Pump liquid through the unit at the rubber liquid tube until some comes out the spray nozzle end.
• Try running the unit again.
• If no liquid goes into the system or pressure builds, check the inline liquid filter.
• If there is still no flow proceed to step 4.

4: Kinks or Internal Filter

• Open the wand connection door to check for kinks.