Old Window Air Conditioner Not Cooling

A window or room air conditioner that doesn t cool may need to be recharged with refrigerant but the chances are good it simply needs to be cleaned.

Old window air conditioner not cooling.

The most common cause of window air conditioners not blowing cold air is a lack of adequate air flow. This video shows the steps for partial or complete disassembly. However when the unit is properly set to cool but it doesn t blow cool air possible problems include low refrigerant dirty air filters and coil freeze over. One of the most common reasons for a window air conditioner to fail to deliver cold air is incorrect mode selection.

Window ac not cooling. In a properly working air conditioner a fan will draw air over the evaporator coils where it is cooled and then be re circulated back into the room. If the compressor isn t running but the fans work the start relay or compressor might have failed.