Mitsubishi A/C making weird sound.

[DarkKnight]

Hello everyone!

I have a Mitsubishi AC. It is working fine and cooling as it should. The only problem is that sometimes, it starts making these GR GR GR sound. It feels like as if the fan inside is touching something I am not sure. This only happens for a short period and the sound disappears on its own. Is it something to worry about?

DK

[machinist]

Hi! It sounds like the "GR GR GR" noise from your Mitsubishi AC could be related to something minor but worth addressing. One possibility is that the fan inside the unit might be slightly off balance or misaligned, causing it to occasionally touch another part, which could explain why the sound comes and goes. Another potential issue could be a small piece of debris or something loose inside the AC that’s briefly coming into contact with the fan blades. There’s also a chance that the fan motor’s bearings are starting to wear out, which might lead to more noise over time, though it wouldn’t necessarily impact the cooling right away.

Since the sound disappears on its own and everything else seems to be working fine, it’s probably not an emergency at this point. However, it might be a good idea to inspect the unit for any obvious issues or consider having it checked by a technician just to make sure nothing is loose or wearing out. Catching a small issue now could prevent bigger problems in the future.