download a service manual for your system. if yo cant find one, i will email you one. i need to know if its automatic or push button manual, and the year of your coach.
check the 40 amp fuse holder. make sure it isnt corroded badly.
if the fuse doesnt blow until you hit retract, that is one major cause. all four solenoids are drawing amperage thru that one fuse.
let me know if i can help.
paul maddox email@example.com
1 602 549 3638 please leave a number and message. i dont call on hangups.
i do work for hwh. i do not sell parts or solicit service work on this forum.