I called my contact at Lippert and although we do not have an installation video I was able to find the instructions that explain how to install a replacement air spring like part # LC432404.
You would need to do the following per the instructions:
The bag is fastened at the bottom first by inserting the carriage bolt in the key hole shape opening on the lower plate allowing the bolt head to slide in and be pulled forward securing the bag in place. Secure air bag with the air fill fitting... view full answer...
While the Fan-Tastic roof vent part number FV6300 is no longer available we do know that the correct cover for it would be the part # FVU1500WH. view full answer...
I attached a picture of the pins that are on the back of the display of the Replacement Auto Level Control Panel for the # LC675817. I'd take some sandpaper and rough up the pins till they are down to bare metal (assuming corrosion is there) and the connection should be good. Also try checking the opposite connection where this plugs in for corrosion there. An easy way to clean out a female electric connector is pour Coca Cola on a toothbrush and brush the pins as well as you can. view full answer...
When you plug in the Lippert Replacement Control Panel # LC421484 it will immediately recognize the connected controller board. This part does not need to be programmed; it is plug-and-play, which was confirmed by Lippert.
In a separate link I have sent the complete documentation for Lippert Replacement Control Panel # LC421484. view full answer...
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