DerbyDad03 writes:
About 5 years ago I installed 8 sets of the Knape & Vogt GS4270 full extens=
ion, soft close drawer slides.

One set, the one on the most frequently used drawer, no longer fully closes=
on its own. When I give the drawer its normal push, it glides to about 1/2=
" from fully closed and then stops. The soft close mechanism does engage, i=
t just doesn't pull the drawer all the way closed. A gentle push gets it cl=
osed, but it's a "manual close" i.e. I don't feel the mechanism taking over=
.

I can "fix" the soft close issue by fully extending the drawer (the standar=
d full extension reset method) but this only solves the soft close issue fo=
r a day or two, probably some X number of usages.

I called KV tech support and other than "make sure all the screws are tight=
" and "make sure nothing has shifted inside the cabinet", he had no other s=
uggestions. When I asked about lubrication, he was pretty emphatic about n=
ot trying that.

Unless someone has a suggestion, I think replacement may be my only option.

Another option, of course, is to live with it. Seems a small thing (1/2").