Understanding the lights and display codes on your SmartLink Medi-Guardian MKII
Your SmartLink Medi-Guardian MKII uses several indicator lights and codes to show its status. This guide explains what they mean.
Power & Battery
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MAINS ON (Green)
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Solid – Connected to power
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Flashing – Power failure; running on backup battery
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BATTERY LOW (Red)
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Flashes when battery is low, not charging properly or the Battery switch is off.
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Alarm Indicators
- HELP slow flash – Alarm has been received
- HELP rapid flash – Alarm being sent
Common codes

When to call INS LifeGuard
If indicators persist after a reset or charging:
- Network loss
- Repeated low battery
- Any fault code that doesn’t clear
Call 1800 636 226.