I'm changing a bad blower motor. My old motor has the following wires: black= hi, blue=med, red=lo, yellow=capacitor, brown=capacitor, green=ground. My new motor has black=hi, blue=med, yellow=med lo, red=lo, brown x2=capacitor, white =line, green =ground, orange=rotation change, purple= rotation change. I know I don't need the yellow speed wire, but the White "line", my old motor didn't have. Where do I need to connect or run it to? Thanks for the help.

In my wife's store, there is a gas furnace. I replaced the old mercury thermostat with a fully programmable Honeywell RTH8500 about a month, maybe a month and a half ago. All of the wires from the old thermostat coincided perfectly with the terminals on this new thermostat so there were no questions at all. The heat works, the schedule works, everything has been fine until my wife called me this morning to say the heat was not coming on. I found the thermostat to be off/dead/etc. I replaced the three AAA batteries and it came back on. Question: Shouldn't this thermostat use the batteries as a backup only? I haven't broken out my multimeter yet because the system was working fine, but I'm pretty sure the red wire coming in is the 24v supply the thermostat uses to in order to trigger the relay inside the unit itself - is it not? If I've got a 24v wire coming into this thermostat, shouldn't the thermostat be powered by this wire, and not the batteries?