E5
Hitachi Cooling Fan or Convection Fan Overload

Hitachi oven shows E5 and fan-assisted modes do not work properly

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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

Seized cooling fan motor, Blocked fan blades, Overheated fan motor winding, Faulty fan triac or relay

How to Fix / Troubleshooting

Safety first: Disconnect power and wait for the oven to cool.

  • Access fan: Remove the top or rear cover to access the cooling fan motor. For convection fan, remove the rear interior panel.
  • Check for obstructions: Clear any insulation, wiring, or debris interfering with the fan blades.
  • Spin test: Rotate the fan by hand. If stiff or noisy, the motor bearings may be worn.
  • Measure winding: Use a multimeter to check motor winding resistance. An open or very high reading indicates a failed motor.
  • Replace motor: Install the correct Hitachi cooling or convection fan motor assembly if defective.
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Repair Difficulty

Hard 4/5

Required Part

Cooling Fan Motor
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