Originally Posted by thenewkid64
The Coleman has a pan that was added under the bottom half of the shroud, or under the unit with the shroud sitting over it. Depends on the shroud. The trouble is, taking the shroud off may cause the pan to crack or worse disintegrate due to age. The pan is no longer made.
As I see it you have 2 options. One is to carefully remove the shroud and hope that the pan stays intact, or use the reducer tip on you shop vac to suck the crud out of the line. This will remove the blockage and not leave it in the pan.
Thanks for your reply! I did try blowing the vent from the bottom with 50lbs in air tank (since I don't have a shop vac) and started it up again. I got more water "inside" than I got outside (measured roughly with a catch pan).
I was successful in removing the shroud for the first time on this 1990 Coleman unit and found that I would have to remove the cover plates in front of the top unit to get better access. Seems I can only see - touch the drain line from the inside where it attaches to the pan. Can't tell if that connection is the source of the leak yet.
I think the Next step is to get back on top and see if I can access the pan to clean it out. Supriseingly the A/S manual doesn't address this at all!!