Galanz
Start Circuit / Control Logic Failure
Microwave display works but pressing START does nothing; no relay click, no fan, no light.
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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
Defective START key on keypad, Faulty membrane keypad, Failed control board input circuit, Child lock feature enabled
How to Fix / Troubleshooting
Safety: Unplug before removing the control panel.
Steps:
- 1. Check child lock: Many Galanz models use a key combination (e.g., holding STOP/CLEAR) to toggle child lock. Look for a lock icon on the display and disable it per the manual.
- 2. Test other keys: Try multiple buttons. If some keys work and others do not, the membrane keypad is likely failing.
- 3. Inspect keypad ribbon: Remove the control panel and reseat the ribbon cable between keypad and control board.
- 4. Replace keypad or control panel: If the START key remains unresponsive, replace the keypad or full control panel assembly.
- 5. Control board: If a new keypad does not fix the issue, the control board input circuit may be defective and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Membrane Keypad / Control Panel Assembly
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