The real worth of repairing an AC depends on a number of possible factors, including the unit's age and condition, the cost of the repairs, and the AC's anticipated lifespan. If the AC is not too old (new to around 15 yrs.) and the cost of repairs is not too high, it might be worthwhile to fix it. However, replacing the AC may end up being more cost-effective in the long run if it is old and in poor condition. To decide what to do in your particular situation, it is best to consult with a professional.