I'm being thrown into a situation that's beyond my control however I have to control the situation. I have a basic understanding of restaurant refrigeration units. If I were to purchase Tech method, Would I be able to accurately diagnose a reefer unit? And if not,is there somebody on this forum that could consult me with troubleshooting if I paid them for it? If it seems like I'm desperate, it's because I am. So please somebody help me