Hot air blowing in cooling mode on Nest
#1
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Hot air blowing in cooling mode on Nest
Hi,
I have two nest controlled unit. One is a heat pump (the picture with black border) and a regular furnace type unit (the picture with yellow border). The heat pump blows hot air in the cooling mode. The wiring looks different for different nest controllers. As far as I remembered, my two nests are not the same generation either. The heat pump is an older generation. Please help!!!
I have two nest controlled unit. One is a heat pump (the picture with black border) and a regular furnace type unit (the picture with yellow border). The heat pump blows hot air in the cooling mode. The wiring looks different for different nest controllers. As far as I remembered, my two nests are not the same generation either. The heat pump is an older generation. Please help!!!
#4
Welcome to the forums.
A couple of issues here.
Why are there two red wires ?
You have a brown wire in the O/B spot which is correct but the stat may not be programmed correctly. What is the make of the outside A/C condenser ?
I would also move the white wire to the W2/AUX location.
A couple of issues here.
Why are there two red wires ?
You have a brown wire in the O/B spot which is correct but the stat may not be programmed correctly. What is the make of the outside A/C condenser ?
I would also move the white wire to the W2/AUX location.
#5
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Why are there two red wires ?
I really do not know. HVAC guy put it.
You have a brown wire in the O/B spot which is correct but the stat may not be programmed correctly. What is the make of the outside A/C condenser?
Trane XLi 4TWX6036H1000AA
I would also move the white wire to the W2/AUX location.
I'll try
Thanks
I really do not know. HVAC guy put it.
You have a brown wire in the O/B spot which is correct but the stat may not be programmed correctly. What is the make of the outside A/C condenser?
Trane XLi 4TWX6036H1000AA
I would also move the white wire to the W2/AUX location.
I'll try
Thanks
#6
Ok..... move the white wire to W2 and make sure the nest knows you have a heat pump with AUX backup heat. In the setup you need to tell it that the O/B terminal needs to be set to O operation.