Have 07 Monaco Sig and when I turn on the wall controller for the front unit even if no mode is selected, the ac/heat pump comes on. If I switch to furnace mode the ac/heat pump stays on and furnace comes on. No matter what I do when ever I turn on wall controller from off to on the ac/heat pump comes on even if no mode is selected. I went up in the ceiling and changed the telephone ;ole cable connect over to the other one and that did t help . Is the controller no good or is there some other issue?