E09
Wolf Gourmet Pump Prime / Suction Error

Display shows E09 and the pump runs loudly but little or no water reaches the brew basket.

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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

Air lock in pump inlet, Cracked or loose inlet hose from reservoir, Debris in pump inlet screen, Failing vibration pump

How to Fix / Troubleshooting

Safety first: Unplug the coffee maker before handling the reservoir or tilting the unit.

  • Check reservoir seating and fill: Ensure the reservoir is completely full and firmly seated. A low water level can allow air into the pump.
  • Prime the pump: With the reservoir full, remove and reseat it several times to help purge air. Plug the unit in and start a brew cycle; if the pump is noisy but no water flows, stop the cycle and repeat.
  • Descale: Run a descaling cycle to clear any mineral deposits at the pump inlet or internal screens.
  • Inspect for leaks: Look under and around the unit for water leaks that might indicate a cracked inlet hose. If you see water under the machine, stop using it and unplug immediately.
  • If E09 persists: The internal vibration pump or inlet tubing may need replacement. This requires opening the unit and working with pressurized hot-water components; contact a professional technician.
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Repair Difficulty

Hard 4/5

Required Part

Vibration Pump
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