Thanks Aaron, I just switched the jumper and it's working like it's supposed to. But it's backwards. The instructions say set the jumper to HE if you have an electric furnace, which is the way I had it set when I installed it. I switched it to HG which is for gas or fuel oil furnace and now it works...

My original numbers are from each terminal to ground. I tested across the terminals and I get 24v across the bottom two, 90v across the middle two and 0v across the top two. Then for the last 20 seconds after the thermostat is satisfied and the blower speed slows down the readings are: 0v across the...

http://i248.photobucket.com/albums/gg194/trailrider383/SNOW%2008/Head012.jpg I have 120v at top left terminal, 120v at top right terminal-black wire,wiring diagram "cooling speed", 120v at middle left terminal, 215v at middle right terminal-red wire, wiring diagram "heating speed&quo...

Back from vacation yet?

I will be interested to see if you get an answer. I am having problems with mine after installing a digital thermostat as well. See my thread "Coleman EB15B Blower Speed".

Still need help, thanks.

Any one? Thanks.

I have a Coleman EB15B electric furnace with the Deluxe Blend Air II. The furnace comes on with the high blower speed. It used to use a slower blower speed with the furnace. I installed a digital thermostat this summer. Honeywell model RTH110B. I don't think that has anything to do with it as it jus...