So I have this 2021 Toyota Innova which has around 28,000 km. Recently, I just had it carwashed and opted to have a Bac2Zero treatment on it. During Bac2Zero, the attendants have asked me to my AC Unit in full. Afterwards, I noticed a somewhat cricket sound, not too severe beneath the cabin filter area but it goes away after a few minutes.
I asked some of my peers who owned the same unit and one them told me that the blower motor is for replacement.
The aircon unit is working fine. Good air flow and still cold.
As for my usual routine, I always have my unit a 2 to 5 minute warm up whenever I cold start it before turning my AC Unit.
if they sprayed some kind of chemical through your blower, then it probably stripped the lubrication from your motor bearing.
So if that's the case, then yes it would have to be replaced.
