Originally Posted by growshopfrank
Just for shit and giggles about twice a year disconnect the controller from power and check the condition of the insulation on the wires inside for brittleness and degradation you might be in for a surprise.
One thing that cheap chinese electrical has iis that plastic/rubber components degrade very fast.
FWIW HVAC Guy is just trying to keep folks safe.
Excellent suggest about the connections to the lugs, whenever I install a main service and tightened the lugs, I always come back a few weeks later and re-tighten as the heat causes expansion and the lug isn't as tight. You and I think a lot alike GSF, if you lived in Vancouver, BC, I would offer you some jobs if you had the time, cheerz.