dryer tripping AFCI as soon as it's plugged in

[arkboy105]

I recently rewired my laundry room with MC cable, 20 amp circuit. I installed an AFCI/GFCI combo switch. The gas dryer trips it as soon as I plug it in, under no load. The washer does not trip it. I tested it with other appliances, under high load, no issue. This doesn't seem like a nuisance tripping to me, since the dryer isn't even running when it trips. Is this an indication the wiring in the dryer cable is bad? No issues before but it was only on a GFCI.

 

[tom baker]

Your occupation is not related to the electrical industry and per forum rules we are unable to assist.