F9E0
KitchenAid Improper Line Voltage or L1/L2 Reversed/Missing

F9E0 error, oven will not start; display may indicate power or line error

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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

Incorrect wiring at terminal block, loose power connections, one leg of 240 VAC missing, tripped breaker

How to Fix / Troubleshooting

Safety: Only work on live power if you are trained and equipped. Otherwise, contact a qualified electrician.

  • Check breakers: Ensure the double-pole breaker for the oven is fully on and not partially tripped.
  • Inspect terminal block: With power off, remove the rear cover and inspect the power cord or conduit connections for burns or looseness.
  • Verify voltage: With power on and using a multimeter, confirm 240 VAC between L1 and L2, and 120 VAC from each leg to neutral (if present).

Correct any wiring issues, tighten loose connections, and replace any burnt terminal block or power cord. If voltage is correct but F9E0 persists, the control board may be misdetecting line voltage.

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Repair Difficulty

Professional Required 5/5

Required Part

Terminal Block / Power Cord Assembly
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