What he said above! But mine was reversed - couldn't open the bedroom slide if some basement doors were not fully shut. The front wall slide always operated because the basements came out with the slide so no danger to doors.
But . . I also had problems with the relays (for me, they are in the battery compartment) and IF I tapped on the relay, the slide would start working. Got tired of having to tap after rough road travel so replaced the relay board and have not had any problems since then!
2004 Holiday Rambler Vacationer 36WDD (Workhorse Chassis)
2004 Honda Goldwing w/trike kit
1995 27' Fleetwood Flair (Sold)
US Navy - Vietnam Swiftboat Vet - PCF 102, PCF-62