Clicking sound with frost buildup mainly at ice chute

Frigidare
Model Number: FFHS2611PFAA
Main Symptom: Frost buildup, clicking sound
What happens & when: Frost buildup occurs mainly at the ice chute (see photo) resulting in a slow water drip into and below the dispenser drip tray. After cleaning it out it begins to reappear the next day. After closing the freezer door a sporadic / occasional clicking sound can be heard.

Parts or tests already tried: I’ve replaced the seal and plastic ‘frame’ of the ice dispenser door. We checked the door seal using the dollar bill test which pulls out with noticeable friction. I’ve read that a plugged grommet (where?) or a defective defrost system could be the issue. To remove the back panel does the ice maker need to be removed? Any suggestions?

Photos / video link: https://photos.app.goo.gl/NggVVyKKeR48AuL39

Based on the images, it looks like there’s an air leak at the ice door chute seal. This could be caused by a weak spring, misalignment, or even a small crimp lifting the chute seal slightly and allowing warm air to seep in, leading to frost buildup.

A good place to start would be closely inspecting the ice door chute area to see if the seal is sitting flush and fully closing. Check for anything that might be preventing a tight seal. The clicking could be a byproduct of this ice.

Here’s a helpful link showing the spring that controls the chute door—it’s a good reference if you want to inspect or replace it:

I already replaced the spring when I did the Bracket, seal and spring. Sorry I didn’t mention the spring. I’ll check the seal area for any issues and look for light leaking through anywhere. I’ll post the results. Thanks for the info!

I put a flashlight inside the freezer over the ice chute. A small dot of light can be seen looking up into the dispenser chute of the outside. If I reach up and press on the top of the stopper where the light emanates from the light disappears. Any thoughts?