Warning sound and red screen on Autron dual battery gauge

My Autron dual battery gauge is intermittently giving me a warning sound and showing red when the auxiliary gauge shows 15 to 16 volts. For a start why is it jumping to 15 or 16 volts?
 

mac_man_luke

Well-Known Member
could be your alternator failing (regulator)

Have another volt gauge or multimeter you can check with?

Red and warning would be because thats too many volts and not good for your battery and other various electronics
 

rogerazz

4x4 Earth Contributer
Maybe run a multi meter on your batteries while vehicle is running. I recently had incredible situation where the inbuilt regulator was stuffed on my altenator which was charging at 17.5 V. Luckily I twigged and made it home, with lights, radio, aircon, etc. on , to draw power down, then fitted a new altenator.
Did blow radio speakers and coil lead into dizzy looked bad, so I replaced all leads, dizzy cap and rotor. Phew!.
 
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