As an experienced air conditioning specialist, I have witnessed countless homeowners struggle with the decision of whether to repair or replace their AC unit. One of the biggest factors that comes into play is the cost of replacing the refrigerant. If a professional determines that your air conditioner is beyond repair and the cost of repairs outweighs the cost of replacement, it may be time to invest in a new system. While it is possible to recharge a window air conditioning unit, I highly advise against homeowners attempting to do so on their own. Each home air conditioner unit is unique and requires specific knowledge and tools to properly recharge.
Not only can attempting to recharge your own unit be dangerous, but it can also lead to further damage and costly repairs. The frequency at which homeowners need to recharge their units depends on several factors, including how quickly the refrigerant leak occurs and the extent of the leak. This is why it's important to address any leaks as soon as they are detected, as they can significantly impact the performance and lifespan of your air conditioner.