Check the circuit breaker. During peak summer months, the AC circuit can be tripped due to an overload from other devices like refrigerators or freezers that work hard during the summer.
Check the system's air filter. A bad one can significantly decrease the efficiency of your air conditioner and make it feel like it isn't working. Clean the filter and replace it or buy a new one if needed.
If you have checked these features and nothing's changed, ask us to make a repair visit and we'll provide clear steps, pricing, and options.