GCI60/M55 squeak-chirp

So after about a week of use, I'm getting a squeak from my stove. Last night, I cleaned the burnpot really good. I got all the carbon I could see removed from the burnpot. I used some copper never seize on the left side of the agitator. I cleaned off the agitator....it's still making noise. It doesn't do it every turn, but every so often. It's a metal on metal type of noise.

Any ideas? If it's not the agitator, could it be the auger? But wouldn't the auger chirp every time it feeds?

That's a great point. I spent a lot of time on the pot, none on the agitator. Looks like I should check next cleaning cycle.

Tonight, I noticed the chirp was there when I had the hopper top open. That, to me, says agitator since that still moves when the hopper is open. The auger doesn't feed when the hopper is agar.

Jim,
I think you're on the money with the agitator having some build up on it. I was able to get the burn pot really clean this time and did my best on the faces of the agitator fingers. What do you use to clean yours? I used scraper, but it was a little difficult to maneuver. I'm thinking of a sanding block with some course grit next time.

Great suggestion guys. I have a brass brush I use when welding to clean up the slag (I'm not a great welder, so there's lots of clemup after each pass!) so I can use that next cleaning.

After a few days, the squeak is back. But it was quieter after the last cleaning. And I did notice the display unit at the stove store made the same noise when I was there the other day. Must be a common issue with these stoves.