Drill a hole through the wall of heater box and then through the door inside it if necessary. Take a wire hanger, fix a hook on it that can fit through both holes. You can then pull the door open and just push it closed again. when wanting AC again in summer. The alternate is in warmer weather to remove the AC/Heat surround and fix it completely.
The heat door on my RSX wont open. I only get cold air. The actuator is under the driver side dash by the fuse box. The actuator works, but the white gears and leavers attaching it to the heat door struggle to budge, and then slip past each other making a snap sound. I can push them together with my finger to keep them engaged, but the gears stop turning after 1 or 2 teeth, then slip again when I let go. I believe the jam is deeper in the heat door assembly. Any Idea how/where I could get to the jam? Is there a way to engage the heat door manually? Here is a picture link. The actuator is on top, and the white gears are on the bottom http://imgur.com/a/qBSBh