The most common airflow problem experienced on air-conditioning systems is:
A) Low airflow caused by dirty or plugged air filters.
B) Low airflow caused by unusually low barometric pressure.
C) Excessive airflow caused by removing the air filter and not replacing it.
D) Excessive airflow caused by high operating voltage.
Question 2
When flushing the system, you should:
A) Flush through the entire system through the service valves.
B) Always flush through the accumulator to remove accumulated debris.
C) Flush through the compressor first.
D) Disconnect the lines and flush through them separately.