Heater fan on my 2013 W900L, Blower resistor?

I've got a couple issues going on with my heater fan on my 2013 W900L
First...it's stuck on vent. I can hear clicking up under the glove box so I figure the gear might be stripped on the blend door actuator.
The other problem was intermittent a couple time this year where it would blow at random speeds regardless of where it was set. Sometimes not all...then suddenly would start.
Now it hasn't worked at all for a few weeks. Somey you can feel a very low cold AC coming through the vent then it'll stop a few miles later.
I'm thinking resistor and actuator to fix my problems. Sound like I'm on right track?
Also, where is resistor located on these trucks?On my Western star it is under the dash with blower motor. But on this KW...the blower motor is accessed from the motor bay. Is the resistor in there or behind glove box?
Thanks for any help or ideas

 

Yeah my Star is like that too. Piston type door. From what I understand, this KW is a plastic box with little plastic gears inside. And it costs $165 from the dealer for something that looks like $5 worth of plastic parts. Unfortunately, living up here in Canada...kinda need defrost on the windshield. Lol

 

Yeah I'm hoping its the resistor but I've got a spare fan motor and cages as well that I bought last winter when it was acting strange. But I don't want to have to open up the box where the fan motor is (if i can avoid it) because there's a couple AC lines right in front of the panel.