We have the cloth accordion style blinds in our Jayco Grayhawk. It seems like every time we open or close them, they don't want to fold completely up. Not sure I explained it, but if you have them, ...
I restrung the large day/night blind in the side window of our Tioga 26Q. It was not easy to do, but I finally got the tangle of long strings and springs, and unruly blind material, etc., back together and string tension adjusted properly. Small blinds are less complicated with fewer strings to keep track of. You need a large work space like a king size bed for large blinds. If you are easily frustrated, you might find someone to restring your blinds for you.