Replacing Carrier thermostat with Hunter 44860

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  #1  
Old 05-31-10, 09:44 AM
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Replacing Carrier thermostat with Hunter 44860

I have a heat pump. I hooked up the wires according to the diagram in the instruction manual, but if I select conventional, cold air blows out, but if i select heat pump on the thermostat, it turns off. Also, the cold air that is coming out is not very cold - it's been running for about an hour and the temperature is not decreasing. Any help is much appreciated.
 
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Old 05-31-10, 10:45 AM
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Sounds like you have wired it incorrectly.

Post the terminal = wire combination that you originally had.
Post the old stat model.
Post the terminal = wire combination that you now have.
 
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Old 05-31-10, 12:02 PM
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I had a carrier thermostat, but can't find the model number. The following is the way it was wired:

Red - R
Orange - O/W2
Blue - C
White - G
Yellow - Y/Y2

I'm left with a green wire and a brown wire. I think I must have missed marking the green wire originally (because it looks like it has been crimped down) and I believe it would go to B, but I'm not sure.
 
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Old 05-31-10, 02:29 PM
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That doesn't look right.
I recommend removing the panel at your air handler and posting the stat wire connections that you have there.

The stat model number should be on the subbase, near the wire terminals.
 
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Old 05-31-10, 02:53 PM
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At the air handler

Red - R
White/Brown - W1
Yellow - Y/Y2
Green - G
Orange - O
Blue - C

In the Carrier case it has SS112-01R and CEBD430112-13B on the board
 
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Old 05-31-10, 03:21 PM
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Houston204 - thanks for tipping me off about the air handler. Unfortunately, i'm an accountant by day, and a "try to be" handyman on the weekends. once i took a look at the air handler and reviewed what i had done at the stat, i realized i got two wires backwards and the hooked the brown wire up with the aux heat, along with the white wire. it seems to be blowing cold air now, but since it's 95 degrees out, it may have to run a bit to cool it down.
 
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