E4
Hitachi
Lower Bake Heater Circuit Fault
Hitachi oven displays E4 and does not heat in standard bake mode
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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 lower bake element, Loose terminal connection, Burnt wiring harness to lower heater
How to Fix / Troubleshooting
Safety first: Turn off power and let the oven cool.
- Inspect lower element: Look at the bottom bake element for visible breaks or hot spots.
- Continuity test: Access the rear or bottom panel to reach the element terminals. Disconnect and measure resistance. An open circuit means the element is bad.
- Check terminals: Tighten any loose spade connectors and replace any burnt terminals or wires.
- Replace element: Install a new Hitachi lower bake heater element if the original is open or damaged.
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Repair Difficulty
Medium
3/5
Required Part
Lower Bake Heater Element
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