Heat pump system switching to aux

I installed a new Honeywell RTH6580WF stat and have the functions set properly. If I try to raise the inside temp 2 degrees or more it switches to aux heat. From what I understand, this can't be adjusted at the thermostat level. Is there a mistake in the heat pump wiring or settings? It was installed a little over a month ago.

 

This function cannot be adjusted with that thermostat.

It is less expensive to keep the thermostat at one heat setting since a 2 degree demand will bring in the expensive heat strips.

You can take advantage of the programmable thermostat in cool mode to see some savings but not in heat.

 

So the only way to correct this problem is to replace the thermostat? There isn't a setting on the heat pump unit that can be adjusted?

 

Your options include set the stat to hold 1 heating set point (no setback), replace the stat or disconnect the Aux/E wire at the stat.

I wouldn't consider the third option because emergency heat is the same terminal.

 

Ok thanks for your help. I'll probably replace it. Is there a comparable thermostat you can recommend? I don't need something as high tech as a Nest but would like it to have wifi.

 

It is harder to view configuration options on many new thermostats since they often now configure with language instead of codes.

I tried looking into the Redlink VisionPro since I believe that I have seen this option when installing them but I do not see stage 2 options in the pdf's that I downloaded. I am not sure that it would meet your specs anyway since it is not wifi. It would require a separate gateway.

Nest makes a great lookin thermostat. I installed one today for a homeowner.
I still prefer the Honeywell Prestige IAQ.

You might read this post before deciding that a Nest thermostat's swing is able to meet your specs...

http://www.doityourself.com/forum/th...le-review.html

I will see what else I can bring up.