u/davep310

This noise is coming out of the front half of this over-the-sill style unit. It sounds like this for a few minutes then gets quieter then comes back. I've heard a similar sound coming from glass cooling cases in grocery stores. Very loud and annoying. I bought this unit as most of the noisy components sit in the outside half (compressor) but this is coming from the inside half. Has anyone seen this before on this style AC and what was the resolution? Thank you