Generator Fail
in 912 / 914 Technical Questions
2 years ago
921ULS-Red'GenFail'light stays on after start, 2-3 minutes, flickers, then goes out.
921ULS-Red'GenFail'light stays on after start, 2-3 minutes, flickers, then goes out.
by Rotax-Owner » 2 years ago
This could be attributed to an issue with your voltage regulator, which might be preventing your battery from charging. It might be a good time to consider replacing it.
by Kevin Stewart » 2 years ago
If you can avail yourself of a clamp-on DC ammeter (UNI-T UT210E or similar) then you can just make sure that you haven't got current draw that is outside of the limits of the charging system. I would also just measure the voltage to make sure that is it not too high (i.e. > 14V). Check the connections on the bottom of the regulator, they are notorious for causing charging problems.
by Rotax-Owner » 2 years ago
Here is a video on Charging system Troubleshooting - https://www.rotax-owner.com/en/videos-topmenu/rotax-minute/404-charging
This video details procedures to troubleshoot charging system issues on Rotax 912 / 914 series aircraft engines.
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