Before calling a professional ac repair los angeles, there are a few things you can try if your home air conditioning system is malfunctioning. Here are some tips: Examine the thermostat: Make sure “cool” is selected and the temperature is set below the current room temperature. Examine the air filter: A dirty air filter can reduce the efficiency of your air duct cleaning by restricting airflow. If a filter is dirty, it should be replaced. Check the breaker’s status: If the air conditioner won’t turn on, verify that the circuit breaker has not tripped. If so, it must be reset. If the drain line is clogged, water can back up into the air conditioner and cause it to shut down. If the drain line is clogged, clear it. If none of these solutions work, it is time to contact a professional for assistance. Find a licensed HVAC technician who has experience repairing your specific air conditioning system’s make and model. They can diagnose the issue and suggest a remedy. Before agreeing to any los angeles hvac repairs, obtain a written estimate and inquire about warranties for parts and labor.