Heat Pump not heating / AC works


Old 12-29-16, 05:33 PM
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Heat Pump not heating / AC works

I replaced my thermostat this summer and the A/C worked fine after replacing. Now it's winter and I needed heat last night and I noticed the fan comes on but just blows cold air. I have a Rheem heat pump and a trane air handler. The thermostat is a honeywell with the following connections
L, AUX/E, G, o/b, Y, R, RC. I have green hooked up to G, Yellow hooked up to Y, Red hooked up to R with a jumper to RC. White hooked up to o/b. I have a brown and blue wire which are not hooked up to anything. Outside at the rheeme unit the reds are tied together, the yellows are tied together, the white is tied to the blue/purple and the blue it tied to the brown (green and black are loose. At the air handler their are wires all over the place but at the strip on the side of the unit with the wires I believe that come from the outside unit and thermostat I see the following. yellow tied together, white tied together, two reds and one white secured at air handler side metal connections.
The white is coming from a wire with only a red and white in it. not sure where that's coming from. red is loose
one green secured to screw on unit the other not connected
one brown not secured, just loose
one blue is secured to unit panel screw by itself.
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Old 12-29-16, 05:39 PM
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Welcome to the forums.

Your description is very descriptive but I can't visualize it. Pictures are great for this.

As far as you know.... you do not have electric reheat coils......correct ?

You have a Rheem heatpump. That means O/B must be programmed for B operation to get heat.
Old 12-29-16, 05:47 PM
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Rheem RPNE-048JAZ. I don't believe are are any reheat coils. I'm working on getting pic up. The thermostat is programmed for B.
Old 12-29-16, 06:01 PM
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