I have a Trane XL13i built in 2002. The fan stopped spinning last week but was still humming. If I gave it a boost with a stick at the right time, it would spin right up and run just fine. I replaced the start capacitor and run capacitor. The run capacitor was replaced because it was swelling and two of the wires attached to it had corroded. I also replaced the wires in the process. The fan blades spin freely when the unit is powered down, but they have significant resistance when the unit tries to kick on. It takes some effort to make them turn. I’m looking at replacement motors and am having issues finding one with the same specs. It’s an Emerson motor, Model K55HXJAE-8958. It claims to have 1/4hp. When I search the model number, every motor that pops up is 1/6hp. I was under the impression that you should never replace a motor with a lower HP one, so I'm a bit confused. Any help would be greatly appreciated. Thanks!

This one's a conundrum and I could use all the help I can get. My wall mounted AC unit's compressor stopped engaging, so I put in a call to my landlord for a fix and they decided to replace the unit. The new unit's compressor wouldn't engage either though. Hmmm... A call to the AC store that installed it revealed that my next door neighbor has the same problem with his unit and it's die to spiking voltage on his 220 line. 220 line? Wait, I'm using the regular 110 line. So how am I getting the same symptoms? Call electrician. This is where it gets weird. A quick check of my lines says everything is perfectly fine. My 220 line is low at 202v, but apparently that's within range for 3 phase according to both the electrician that came to my apartment and the one who came to my neighbor. But that shouldn't affect the 110 line, right? so why am I having the same symptoms still? Coming in from the street, both my apartment and my neighbors come through the same box with meters, but the third apartment that is having the same problem uses a different panel. So what gives there? Any advice or clarity would be welcome at this point, because this problem has two electricians and an AC appliance store stumped, and several tenants without AC during a heat wave. INCLUDING ME!