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The rubbing alcohol smell can indicate a Freon leak. The smell can also indicate a plugged drain tube. There is natural condensation that needs to drain away from the air conditioning compressor.
Unless someone peeded into your inlet vents, next guess is are you a smoker??
A smell coming from a reverse cycle air conditioner may be a signal that the filter needs to be cleaned. A smell like engine exhaust might be present if the air conditioner motor is in need of repair.
An air conditioner should not smell like smoke when turned on (or when turned off). I would have to suspect that the electrical insulation is burning.
It sounds like there is a leak inthe evaporator section of your air conditioner. If this continues, the air conditioner will no longer cool and you may have to replace several components of the system. The smell is that of atomized esther oil.
because you have too many dead babies in your air conditioner tank
Freon mixed with refrigerate oil will have a slight smell.................
there is a leak in the compressor...
Failed compressor
It sounds like there is a leak inthe evaporator section of your air conditioner. If this continues, the air conditioner will no longer cool and you may have to replace several components of the system. The smell is that of atomized esther oil.
if u would have noticed the onion smell comes only when you cut onions .
clean it, then spray it with air freshener.