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Tell me what thermostat you are using and if you have it set to conventional or heat pump.
Here is what I would do if you do not want the heat pump to work in heat mode.
Connect R to R and RC
Connect G to G
Connect Y to Y
Connect C wire to C
Connect the O/B wire to W
Connect the AUX wire to W2
The go to setup menu and select 9 (2 heat/1 cool multistage conventional) for function 0170 system type.
At furnace connect the wire from W at thermostat to W and wire from W2 at thermostat to W2.
Let me know if this works for you.
Sounds good.Let me know.
If you have further questions, please let me know.
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1. Set function 0180 to 0 and see if it makes a difference on fan.
2. The only wires that should be connected to heat pump right now are C(Common) R (Power) and Y (Contactor control)
3.The link you sent is for a later year of the same model furnace.In those furnaces, they combined the fan and main board together.I am attaching a link for the manual for your furnace.
The board should recognize you have a 2 stage thermostat and operate accordingly.If not, you may have to add an isolation relay.See page 21 for instructions and details.
Probably an appliance parts or hvac supply house.
That may solve that issue also if the 8000 is not communicating with the control board.I would think as long as you have an R and G at thermostat connected to R and G at furnace it should work, but those variable speed communications are a bit iffy. I know the Nest , which is one of the best on market, will not even work with a variable speed fan.
Let me know if this helps.
Me too.Let me know
You should see a difference between first and second stage.See pages 23 and 24 for explanation of how it should be doing