The answer is yes haha. Luckily, when I removed the glued on plastic
cover for the $100 transformer, I found a cheap 3.5A fuse, soldered on a
new one, and bob's your uncle.
Would plugging in the O wire to the O terminal when it's override and
not for the heat pump to switch be the reason why the system would short
cycle when powered and then cause the 240V to 24V out transformer to
fail. It says it's an internal fuse, s...
I initially used the basic nest, but the transformer went out. I put O
to O, but maybe it's not the wire for switching between heat and cool.
Or maybe my wires touched each other. Not sure. All I know is it worked
for a couple hours then the transfor...
