Give it up scraf, I know what science is, and I use it everyday.
You employ empiricism, which is not surprising since I doubt faith-based air conditioning would be very effective; but you do not employ the scientific method.
For instance, if you're anything like most troubleshooters, you probably "test" several theories simultaenously, since your goal is not to prove yourself exactly right about what caused the failure, but to recitfy the problem. If you make three different adjustments at once, and the problem goes away, it really doesn't matter which one of those things actually did it.
Moreover your style of writing doesn't indicate that you do much in the way of published writing, so we know that, if you're communicating your results at all, you're doing so by word-of-mouth at industry gatherings, etc. Not through a formal refereed journal process.
The scientific method is the process of:
Observation
Hypothesis
Experiment
Analysis
Dissemnination
It's basically a refined version of empricism, plus a process of peer review of research. Certainly what you do is more like science than it is like theology, but to say that you employ the scientific method shows us that you don't actually understand what the scientific method
is, nor that you understand the level of rigor that proper scientific study requires.
You use empiricism, process of elimination, basic troubleshooting. And those things are distantly related to the scientific method. But doing those things no more means you're using the scientific method than the fact that I can set a thermostat means that I could do
your job.