“How do I stop that loud screeching sound when on cool”
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Thank you for your inquiry! If your Insignia™ 350 Sq. Ft. Portable Air Conditioner is making a loud screeching sound when on cool, there are several steps you can take to troubleshoot and potentially resolve the issue. First, turn off and unplug the air conditioner, then open the unit and inspect the fan blades for any obstructions or damage. Lubricate any moving parts if applicable, as friction can cause screeching. Tighten any loose screws and bolts, as vibration can also cause noise. Ensure the unit is clean, including air filters and coils, as dust buildup can affect performance. Check that the air conditioner is on a level surface, as an unbalanced unit can cause unusual noises. If these steps do not resolve the issue, the problem may be internal, such as with the compressor, and professional help may be necessary. Contact Insignia customer support or a technician for further inspection and repair to avoid further damage to the unit. Keith | Insignia Support https://www.bestbuy.com/site/insignia-350-sq-ft-portable-air-conditioner-white/6393206.p?skuId=6393206
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