Loud buzzing noise from inside Jenn Air 2389G...

Only the bottom panel is removable on the Jenn Air. The rest of the back is sealed. The fan is free of any obstructions and running silently.

Thank you,
David

UPDATE: When I pulled the solenoid for the refridgerator temperature control, I discovered the flaps that it opens to let cold air in from the freezer were blocked with ice. So I thought this might be the root of the problem thinking the solenoid could make noise if it tried to open the flap but couldn't. The only problem with this theory is that the solenoid is on hte left, not the right.

In unblocking the vent, I took a cover off in the freezer. As I started clearing away frost, I noticed a lot behind the back panels in the freezer. So I took them off. The coils were completely encased in frost.

After thawing them I realized this must mean the defroster coil is not owrking. Behold, the defroster control is in the upper right hand corner of the regfridgerator, right where the noise and vibration was eminating from.

Turns out that the noise was coming from the "Adaptive Defrost" control in the refridgerator and that when the control finally failed 100%, the cold air passage from the freezer to teh fridge became blocked. I defrosted the freezer, including removing the panels from the back of the freezer compartment to get to the coils, then dried the freezer. While the freezer was drying, I replaced the defrost control circuit baord and now it works like new.