Suddenly the one and only slide in my 2007 Coachman Freelander started acting up. One side ... the left ... moves slower than the other, thereby causing the slide to move crooked. However, if I manually push that side while the motor is operating it opens fine. If I push that same side from the outside it closes OK, too. I'd like to wait to get it repaired when I return to Florida in about a month. Any suggestions?