E6
Kenmore Compressor Start Circuit / Inverter Communication Fault

Kenmore freezer shows E6; compressor may not start or may shut off quickly; display may flash.

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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

Failed compressor start relay or PTC, Faulty inverter board (on variable-speed models), Loose harness between main control and compressor, Overheated or locked compressor

How to Fix / Troubleshooting

Safety first: Unplug the freezer before accessing the compressor compartment. Do not attempt sealed system repairs without proper certification.

Steps to address E6:

  • 1. Access rear service panel: Pull the freezer away from the wall and remove the lower rear panel to expose the compressor, start device, and control board.
  • 2. Listen and observe: Plug in briefly and listen for clicking from the compressor area. Re-unplug before touching components.
  • 3. Inspect start relay/overload: Remove the start device from the compressor terminals. Check for burnt smell, rattling pieces inside, or melted housing.
  • 4. Test start device: Use a multimeter to check continuity across the relay/PTC as specified for your model. If open or physically damaged, replace it with a Kenmore-compatible compressor start device.
  • 5. Check wiring and connectors: Ensure all harness plugs to the compressor, inverter (if present), and main control are fully seated and not heat-damaged.
  • 6. Reassemble and test: Reinstall the start device, restore power, and monitor whether the compressor starts and E6 clears.

Important: If the compressor hums and then clicks off even with a new start device, or if the inverter board shows burn marks, the compressor or inverter may be failing. Sealed system and inverter repairs should be handled by a qualified technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay
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