Welcome to IRV2! We're sure glad you joined the gang!
If your storage bay door open upward they will probably have interlock switches that prevent the slideouts from moving with the door open. Even though the door is closed the switch could be defective or need adjustment. You can use a jumper wire and bypass each door switch, one at a time, to see if that's the problem.
Good luck, happy trails, and God bless!
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD