E07
Panasonic Internal Leak / Overflow Detection Error

Display shows E07; machine may leak internally or stop mid-cycle.

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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

Leak detected by internal float switch, Cracked silicone hose, Loose hose clamp on heater, Cracked water tank outlet

How to Fix / Troubleshooting

Safety first: Unplug the coffee maker immediately. Do not continue using a unit that is leaking internally.

  • Check for visible leaks: Look around and under the machine for pooled water. Dry the exterior with a towel.
  • Remove and inspect tank: Check the water tank for cracks, especially around the outlet valve. Replace if damaged.
  • Allow to dry: If a minor spill into the top occurred, allow the unit to dry for 24–48 hours and then test. However, if E07 returns, an internal leak is likely.
  • Professional inspection: Internal leak sensors and hoses are inside the chassis. Disassembly exposes mains wiring and hot components; this work should be done by a qualified technician who can replace hoses, clamps, or the tank outlet as needed.
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Repair Difficulty

Professional Required 5/5

Required Part

Silicone Water Hose Set
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