This low voltage annunciator activates when alternator output drops below 13.0 volts and will remain activated until normal output is restored.  The voltage drop could be the result of an alternator malfunction or an overloaded system.  Check by switching off a high load device, like landing light or strobes.  If the ALT light goes off, the alternator is not malfunctioning but you are sourcing more voltage from your battery than the alternator is replacing.  If the ALT light remains on, the alternator is malfunctioning and all non-essential electrical systems should be shut down immediately to conserve remaining battery voltage.

The LED unit is less than 1 sq. in. x 0.5” deep. A drill template is provided for attaching the LED bezel unit to the panel.

Complete installation and electrical connection instructions are also provided.

 

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