Zline Underbody Leak / Pump or Hose Failure

Dishwasher leaks from underneath the unit onto the floor or into the cabinet base.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Cracked drain hose, Loose hose clamp at pump or sump, Leaking circulation pump seal, Cracked plastic sump assembly

How to Fix / Troubleshooting

Safety first: Turn off power and water immediately to prevent electrical shock and water damage.

  • Pull out the dishwasher: Carefully slide the unit out of the cabinet to inspect the underside. Use towels to catch water.
  • Run a test with panels off: With the unit partially out and panels removed (and with caution around live parts), run a short cycle to observe where water drips originate.
  • Tighten or replace hoses: If a hose or clamp is leaking, tighten the clamp or replace the hose with a high-temperature dishwasher drain hose.
  • Replace leaking components: If the circulation pump seal or sump is cracked, replace the affected assembly.
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Repair Difficulty

Hard 4/5

Required Part

Drain Hose
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