Hansa
No Start – Control or Door Interlock Issue
Microwave display is on but START button does nothing; timer does not count down.
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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 door interlock switch, Defective START key on keypad, Control board input failure, Child lock enabled
How to Fix / Troubleshooting
Safety first: Unplug the microwave before any mechanical checks.
- Check child lock: Look for a lock icon on the display. Disable the child lock according to the user manual (often by holding a specific key).
- Verify door closure: Ensure the door is fully closed and latched. Open and close it firmly several times and listen for distinct clicks.
- Test other keys: Try setting the clock or using other functions. If some keys do not respond, the keypad may be faulty.
- Power reset: Unplug for 10 minutes, then reconnect and test again.
- Professional diagnosis: If the START key still does nothing, a technician should test the door switches and keypad matrix and replace the faulty component.
Warning: Do not attempt to bypass door switches to force the unit to start.
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Repair Difficulty
Medium
3/5
Required Part
Door Interlock Switch Set
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