Had to help the repair man called for rm 21 HVAC unit quit. Burned out motor and of course "they" don't have one on hand. So sent him over to the garage to see if there was one on a junker unit. He talked me into taking a whole used one. THESE things are NOT light. Get it over to the room and plugged in to test before pulling the crp one out of the wall. HUMMMMMM heater part came on real good BUT no fan assembly SMH. So back to the garage for the NEW one still in the box I bought around the time of the boom. Hump that over , rinse and repeat only this one work SO sent the other 2 units off with him to fix cost of parts and total cost to repair each BEFORE I give them the go ahead.