Henry Airlock / Pump Not Primed

Solution is not being drawn from the tank; the pump is quiet or intermittent.

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Possible Causes

New machine not primed, Tank not seated correctly, Air leak at intake, Blocked intake filter

How to Fix / Troubleshooting

Safety: Unplug before reseating tanks or hoses.

  • Prime the pump:
    • Fill the solution tank fully with warm water.
    • Refit securely and ensure the outlet valve engages.
    • Hold the wand low and run the pump continuously for up to 2 minutes to draw water through.
  • Check intake filter and seals:
    • Clean the tank filter and inspect the outlet seal.
  • Ensure tank is fully seated:
    • Press down firmly until you feel it lock into place.
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Repair Difficulty

Very Easy 1/5

Required Part

Solution Intake Filter
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