After only 5 years it appears I have bearing going out on my blower motor. It has a definite shimmy on high speed and the fan wobbles as it comes to a stop. I can feel the play too. I was able to get rid of the shimmy by connecting the low speed wire vs. the high speed. Now it just has the little extra groan on startup. Lennox is pretty secretive about their parts and most local suppliers either didn't have it or told me I had to call a HVAC contractor. One of them did give me the part number and I was able to find it online for $271 vs. 4-500 bucks elsewhere. I always thought it would be a good idea to have a spare so hopefully the bearing is replaceable on the old one. For those of you with boilers using a HX with forced air do you run on high or low? I think typically most are setup to cool on high and heat on low. Mine was wired on high exclusively (I guess because it's a heat pump) although the last couple winters I would manually switch it to the low speed wire when using the wood boiler. Does anyone see a problem with me adding a relay (rated for the proper current) to switch speeds from low to high based on whether the wood tstat or heat pump tstat circuitry is activated? The heat pump currently has priority over the wood tstat. I always run the heat pump tsat a few degrees lower. So if the heat pump was running and met it's setting while the boiler water reached temp my new relay would switch from the high to the low setting while the fan is still turning. Switching speeds while blower is turning should not be a problem should it as long as only 1 motor speed winding is energized at a time since this would be the case with my proposed new relay, right?