I have an issue where an afci curcuit is tripping, when the
refridgerator that is on another curcuit turns on. I tried switching
out the AFCI breaker and the same thing happened.

I kept removing things from the AFCI curcuit to try to analyse it, so
now there is one brand new 12 guage NM 2 wire with ground cable that
runs for 15 ft hooked up the the curcuit (it hasn't been stapled yet,
and it the wires are capped at the end). I even removed the recepticle
and this still reproduces consistently.

I will turn on the curcuit and it will be fine until the refridgerator
that is on the other curcuit turn on. Then if will trip (with the AFCI
light showing). If I remove the wire completely (so it is just the
breaker, this the white wire hooked to ground, then it will not trip.

This is a new seimens panal and siemens breaker.

Does anyone have any ideas?
Thanks!