I have about a 3 year old Kenmore (Sears) 6 ton HVAC that was in my
house when I bought it. The Thermostat was the cheapest digital I
have ever seen, so I replaced it with a programmable one to save a bit
on the heating and cooling.
The 18-5 tstat wire was also just run on the wall and stapled and
painted over, so I purchased a new wire an ran it inside the wall. I
have them hooked up as follows on both ends (tstat and circuit board)
r = red
c = blue
w = white
y = yellow
g = green
This worked all winter just fine, but apparently the cooling side is
not functioning as I have no A/C, or even fan when in AC mode. I have
verrified power to the blower and the compressor.
There is also an 18-2 lead going to the compressor's exterior power
breaker from the circuit board. I believe it was hooked up as
c = red
y = white
I have hooked it up in the same fashion to no avail. I believe the Y
is to trigger the compressor and the C is a common AC trigger lead.
What am I missing?
Thanks in advance for your response