Hello guys

This is puzzling me and some others that I asked as well. Here is the thing.

When I switch on my AC and it starts kicking in my amps goes up until 60 amps and than usually settles around 43 amps. Which is fine I have a 100 amp alternator. Then I start my taxi and the amps pretty much stays the same (with AC on).

But when I am doing a run-up my amps goes all the way to 85amps…hovers there a little and then settles back to around 70amp @ 1700rpm

In flight when the AC is running (cruise) my amps are around 44amps. Sometimes it goes to 60amps, this is when the AC kicks in again.

The puzzling part is, why it goes all the way to 85amps and than goes back again on the run up? I hope to trigger some Ideas here.

I am having problems that my breaker from the AC pops after about 15-20min after start.

Many thanks == Ronald