Hi there. Just bought an 83 21d and brought it back to life. Everything works either the exceptions of a shaky main door and switch won’t operate pop up in the down position. I have to override on the pump. Read about the breaker having a reset but didn’t the reset button. Maybe I could replace that or test for continuity. The door hinge on front door is sagging and water may have found a way in at one point. Either way I’m excited for this great condition find!

Do a search on the internet for a new switch. DH had to replace a switch for raising and lowering on our 1990 25ft. Classic. Post a picture of the parts you need. DH also had to rebuild the door on the 1990.