Out of my surprise, front panel of this AC is the hardest part to install. There are 3 snap ONs but none worked, finally we figured out that front panel has to be "SCREWED" with two screws to fasten it but that size of screws were not included. After screws were fastened, front panel still required patches for "Sticky Tape" to keep the front panel tightly in place, otherwise front panel is not set at all. I have not seen this type of front panel in any other ACs I had in the past. Very frustrating.