E7
Bosch
Heating Element Circuit Fault
E7 error appears, often immediately after powering on or selecting a program.
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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
Open-circuit main heating element, Burnt thermal fuse in heater circuit, Loose heater connector on PCB, Damaged wiring to heating plate
How to Fix / Troubleshooting
Safety first: Unplug the appliance before any disassembly. Heating circuits carry mains voltage.
- Check basic operation: If the cooker never warms up in any mode and shows E7, suspect a heater circuit issue.
- Inspect underside (advanced): Remove the bottom cover. Look for burnt connectors, discolored wires, or a blown thermal fuse near the heating plate.
- Reseat connectors: Ensure the spade connectors or plugs from the heating element to the main board are firmly attached and not oxidized.
- Visual check of heating plate: Inspect the aluminum heating plate for cracks or severe warping.
- Component replacement: If the thermal fuse is open or the heating element is visibly damaged, replace with Bosch-specified parts. If you are not experienced with mains electrical work, have a technician perform this repair.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Heating Element
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