How to Lubricate Fans on VC Winterwarm Large?

[Dave Jenkins]

I want to lubricate the small fans on each side of my Vermont Castings Winterwarm Large. I have cleared away some of the side-pieces so that I now have access to the fans. How do I go about lubricating them?

Thanks in advance for your help.

Dave Jenkins

 

[Dave Jenkins]

Both fans spin freely at a slight finger-touch. Yet, when I move the lever to turn the fans on, they run slowly and there's a groaning sound.

Could the problem be with the rheostat?