Haha! Bugs suck, especially flying ones with stingers. We have wasps and yellow jackets here that will build a nest anywhere they can outdoors. Any time I go out to work on any stationary electrical or mechanical device, I bring a can of bug spray or brake parts cleaner. Too many bad experiences in the past.
Air handler units usually have control board with relays on them, hard wired contactors, or sequencers in them somewhere. The good news is most of them have some kind of schematic or wiring diagram in the box. Whether or not the included information is useful is another story...
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