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PLease provide the following details.
1.Model on old and new
2.What color wires went to what terminals on old?
3.Where did you put wires on new?
OK you had two whites ?
PLease verify I understand
Old r to r
Old blue to c
Old g to g
Old y to y
Old w to o/b/w
Old O to w2
Normally the white should be W2 and Orange to O/B
Disconnect wires. Touch the flowing wires together and tell me what happens with each
R to G (Should bring on blower)
R to Y should bring on compressor
R to O should cause reversing valve to swish
R to W should energize heat strips
So with R to R and Y to Y, ac will not come on when you call for cool?
You have a defective thermostat if fan works, heat works but cool does not and we have power to unit.
Excellent. Did you figure out why it wasn't coming on?
THat would make a difference.I though you knew it was a heat pump.Glad you figured it out