I opened up the aircon because the blower does not seem to start. After some probing around I rubbed up against the motor body and burned myself. Yep, it's probably got shorted/burnt windings. It gets really hot. You can sometimes start the blower by giving the squirrel cage a little push. The bottom blower has nearly the same mountings but is 90W, the bottom blower pulls inside air through the condenser and then fires it out the window duct. The upper fan is just 55W, but has 3 speed taps. I may just get the 90W part and cable all three speed relays together. Usually if you need this thing on, it's going to be going full boar anyway!