I'm adding new panel connected to my main with a 125 amp breaker. I'm moving some circuits from the main to the new panel and adding one new circuit. The existing circuits use a standard breaker but when i put them in the new panel, i want to replace the breakers with AFCIs. The new panel has the bonding screw removed.
I'm stepping through one circuit at a time until i'm sure my process is correct. When I ran into problems on the new circuit that i added, I disconnected all the outlets except for the first one and still the afci trips as soon as i apply a load. I tested the outlet before applying a load. 120 volts and the neutral and ground are connected with near zero resistance as i would expect since they are bonded together at the main. The AFCI is connected as a standard breaker with the addition of the white pigtail added to the neutral bar.
Couldn't figure out why the new circuit didn't work, so i moved one of my existing circuits from the main to the new panel. to do this, i pulled the wires out of the main, run them into a junction box and use a short wire from the new panel and wire nut them in the junction box. Same results, AFCI blows as soon as load is applied.
MY AFCI breakers are Homeline SquareD 20 amp HOM120CAFIC. The panel is a Reliance PanelLink TTV2010DR and Square D breakers are listed as compatible. The new panel has 1 built in 20 amp breaker. if i hook the circuit up to this instead, everything works fine.
Could use some help on how to diagnose the problem. Thanks.