Sounds like low voltage to me. Is your battery getting old? I have done some battery depletion testing and my ADI acts like this around 10-11 volts IIRC. When the engine starts and system voltage comes up due to the alternator the condition should disappear. What is the voltage at the ADI connector?
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Highest Regards,
Noah F, RV-7A
All men dream, but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men? for they may act their dream with open eyes, to make it possible. -T.E. Lawrence
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