ERROR 05
Keypad Error
ERROR 05 indicates a keypad malfunction.
Possible Causes:
• Stuck key
• Damaged keypad membrane
• Moisture contamination
• Keypad circuit fault
Troubleshooting Steps:
1. Check all front panel buttons.
2. Verify no key is stuck.
3. Clean the keypad area.
4. Restart the indicator.
5. Replace damaged keypad if necessary.
Persistent keypad faults may require service.
Possible Causes:
• Stuck key
• Damaged keypad membrane
• Moisture contamination
• Keypad circuit fault
Troubleshooting Steps:
1. Check all front panel buttons.
2. Verify no key is stuck.
3. Clean the keypad area.
4. Restart the indicator.
5. Replace damaged keypad if necessary.
Persistent keypad faults may require service.
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