One of the most common mistakes I hear techs make is confusing zero ohms with infinite ohms. The fuse above is showing near-zero ohms, which indicates a good electrical path with very little resistance. If there is a perfect path, it would have zero ohms (which isn't actually possible unless you happen to be […]

First, here's a quick summary of the role of oil in the refrigerant circuit: The compressor requires oil for the lubrication of the moving parts in the compressor. We would keep 100% of the oil in the compressor if we could. However, that is generally unrealistic. So, we need to utilize oils and oil strategies […]

We all know what excuses are. They tend to sound like, “I would’ve done a better job if I’d just had the right tools!” or “I would have found that disconnected duct if I weren't dispatched at 6 PM!” Some people probably say, “Those aren’t excuses. Those are reasons!” OK, sure, we can call them […]