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jpbjr
Dec 13, 2008, 01:45 PM
Honeywell digital t-stat for a heat-pump is wired wrong. Only get heat.
Here is how it is currently wired:

C=black
Y=yellow
G=green
O/B=orange
Rc=jumped to R
R=red

Aux=white
E=brown
L=empty

KC13
Dec 13, 2008, 01:51 PM
It may be wired right but configured wrong. If you set it to heat does the system cool? Check installation instructions for setup options relevant to the O/B terminal function.