912 alternator not charging

[hallschuch]

so... I taxied out to the run up area and discovered my alternator seemed to not be charging ... I sense I'm about to begin a long process, so i'm just wondering if anyone has any particular insight that may save me time?
thanks in advance,
Karl

[desertdave]

Have you checked the alternator fuse or circuit breaker yet? Loose wires? Start with the easy first.

[hallschuch]

Hi Dave,
thanks for your response - after an afternoon of troubleshooting I narrowed it down to the rectifier. I get 16V AC in (from the alternator) and 0 volts DC out.
Don't know why it should have gone bad, its all new.
--- Karl

[desertdave]

How to test your rectifier:
https://pointsforpilots.blogspot.com/2012/12/testing-rotax-912914-generator-and.html

[Av8r3400]

Regulator-Rectifier fail frequently. I carry a spare when going cross country.

[hallschuch]

How to test your rectifier:
https://pointsforpilots.blogspot.com/2012/12/testing-rotax-912914-generator-and.html

Hi Dave, thanks for the link.
I snooped around and discovered I didn't have a good ground on the rectifier, but the problem is rectified :-)

[hallschuch]

Regulator-Rectifier fail frequently. I carry a spare when going cross country.

thanks for the heads-up