Why does my window air conditioner stink? What causes the smell: This may mean there’s a leak in your refrigerant line, which releases chemicals into the air, according to Cielo, an AC unit retailer. If you smell this, turn the unit off immediately, and open windows to ventilate your space.
How do you clean a window air conditioner without removing it? To clean the window air conditioner without removing it, use the vacuum with the soft brush attachment, and carefully vacuum out any dust balls or other stuff you see in the unit. Then, mix together your water and two drops of dish detergent. Next, spray this inside the machine and wipe the areas down.
How do you clean the inside of a window air conditioner? Spray down the interior cabinet and exterior housing with hydrogen peroxide, and use a cloth or rag to wipe down everything that you can reach. You can use the same spray cleaning solution on the evaporator and condenser coils, or you can use an AC coil cleaner spray cleaner.
Why does my window AC smell like sewer? Sewage Smell
If you smell sewage when you turn on your A/C unit, your sewer system may have backed up into your house or near your unit, and the smell may come from a ruptured pipe. Contact an air conditioning company right away if you notice a sewage smell or detect methane in your home.