STBRetired wrote:
Not weak motor, as the awning retracts fine. Is some kind of binding in the arms between the 6" and 18" deployed positions. I would go over every part of the arms that is touching between 6" and 18" and look for signs of rubbing. If you want to get nuts, take a vernier caliper and start comparing ID and OD of areas that touch where they bind. I would guess that some part of the arms got squeezed or bent and is creating more friction than the gas struts can overcome at that point.
He needs the TSB arm extension rubber spring tube. There is another post recently showing where to get and the P/n. Doug
https://forums.motorhome.com/index.cfm/fuseaction/thread/tid/30108359/gotomsg/30108412.cfm#30108412