E14
Bush
Monitor Switch / Safety Interlock Error
Microwave shows E14 and will not start; may occur after door is opened and closed rapidly.
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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
Faulty monitor switch in door interlock assembly, Incorrect switch alignment, Damaged switch bracket, Wiring fault in interlock circuit
How to Fix / Troubleshooting
Safety: Unplug the microwave. The door interlock system is a critical safety feature; do not bypass it.
- Access interlock assembly: Remove the outer cover and control panel to reach the door switch cluster.
- Inspect monitor switch: Identify the monitor switch (often wired differently from the primary/secondary). Check for signs of overheating or mechanical damage.
- Test with multimeter: With the door in open and closed positions, verify that the monitor switch changes state as specified in the service manual. Replace if it does not operate correctly.
- Check bracket alignment: Ensure the switch bracket is not bent and that the door latch actuates the switches in the correct sequence.
- Replace faulty components: Fit a new monitor switch or complete door switch kit if necessary.
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Repair Difficulty
Hard
4/5
Required Part
Door Switch Kit
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