I also have a Canyon Trail ,SLT 29 ft with rear kitchen . I have had many of the same troubles. bedroom door, same trouble, trim pieces, stove, ignition wires crossed.there was a bolt sticking out of the bottom of slide causing damage to floor, dealer repaired. water pump plumbing leak, dealer repair. shower and bath room sink both plumbed to black tank, dealer repair. screw came out of bottom of slide on other end , damage to floor, wardrobe slide in bedroom slide leaked at bottom seal,repaired myself. waste tanks indicator almost everybody has that problem. Have table and chairs . the table leg broke off during travel. I screwed that back together.
This was a new trailer and never used.