Bathroom vent identification

[VegasZac]

Hi,

First post of many, I hope. I bought a new Hideout 175BH and am in the shakedown process. I noticed the vent fan will not crank up, unless I manually push (or pull up from the outside) on the vent cover. Once it’s started, it cranks up and down just fine.
I isolated the problem to the worm gear and crank arm assembly - best I can tell the first tooth is completely worn down or broke off. It’s super cheap metal, and from the research I’ve done I was expecting to find some issues to correct. Thus far, it’s the only one, knock on wood.
So obviously, this would be a warranty repair but after some quick research it looks to be a $20 part and is easy enough to install. I’ll take that to avoid dealing with the service department and ensure it’s done right. My issue is that I cannot seem to find the manufacturer of the vent or a model to ensure I buy the right crank arm assembly. Does anyone know what Keystone uses in these TT or know if it’s labeled in a hidden spot I haven’t found?

Thanks!

[mokurt]

The mfg. might be stamped on the metal frame.