I apologize firstly if i'm posting in the wrong forum, however, this seemed to be the most adequate. My question is in general in the amount of time it takes to find a problem with a cooling problem. The reason I ask is i took my second semester lab final in advanced electricity and were giving 15 minutes to find a fault. I found mine a second too late, the common wire in the circuit board had been cut. Anyhow, reasonably i was upset and disappointed, and was told that 15 minutes is the correct amount of time it should take to find the problem with a system in the real world. Well upset as i was, my reaction was well how many condenser units have you worked on inside an air conditioned space in the real world. Yes, i was most definately upset. What are some opinions regarding this. Most appreciative for your help.