On 2/18/2011 7:22 PM, mcp6453 wrote:
Back in November, my HVAC guy replaced my thermostat on my heat pump with a
Honeywell TH8320. He did it at the same time that he corrected a wiring problem
near the air handler underneath the house. A terminal overheated and melted a
wire. The thermostat wiring was not affected. The heat has been working fine.

Here is a picture of the present wiring:

http://tinyurl.com/4lz7b5m

or the direct link:

http://i882.photobucket.com/albums/a.../th8320-01.jpg

You can't see it well in the picture, but there is a jumper between E and AUX.
It's hidden by the black wire.