[Bstaabjr1]

I have a 2016 Keystone 29rli. The main slide goes out fine, but has been very slow coming back in to the point of stopping. I keep all of the slides clean and lubricated, and the cables are fine and functioning as intended.
The slide drive is a Ball Accuslide cable driven system. (see photo)
I've taken it to a certified local rv shop, and their advise was to bring it in, let it stop, wait a few minutes, bring it in, repeat.
Thanks to help from this forum, I believe the issue has to do with my circuit breakers tripping.
I replaced the 12V 30 amp reset circuit breaker in the photo and the situation seems to have improved (slide came all the way back in without stopping). Only tried it once as I was in our storage field with about 12.3 volts on the battery.
My question is, I believe the devices in the second photo are also breakers and am wondering if one of those could possibly be contributing to the issue?
If so, which one (A or B) should I replace.
Again, all of the other slides (kitchen and bedroom closet) work fine, and the main slide in question goes out fine, but seems to come in slower than the others.
Thanks for any guidance, Bob