Unfortunately, this is an issue that will continue unless you replace your air conditioner. You should not leave your air conditioner running if you suspect an issue- an HVAC professional will handle the issue for you. This means it may experience a mechanical issue at some point during its life. It’s very similar to the problem you’ll experience with a clogged filter. In all honesty, it’s an offer you shouldn’t miss out on. Find out about the perfect temperature to set your air conditioner during the summer. Something this cheap portable AC unit has that you won’t find in many other products is an Activated Carbon filter. This means that you won’t only notice a lack of cold air, but probably a little more dust and overall stuffiness due to airborne particles not being filtered out. An air conditioner that is too big or too small will wear out your air conditioner, and cause a whole bunch of problems. Decker BXAC40008GB Portable 3-in-1 Ultra Air Cooler Price Conditioner, _549 at Amazon, which uses 12,000BTU, or 3.5 kWh.