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!

I recently purchased a used Westpoint Pelonis 12,000 btu model # MWF1-12CR window ac. It worked when I brought it home. I took it apart, including all electrical components, and gave it a good cleaning. After putting it all back together, I'm pretty sure I ran it to make sure it still worked, then installed and sealed it in the window opening. I used compressed air on all electrical connections to make sure there was no water remaining on them before I put it together. I went out a couple days later to use it, and now no ac. It's getting power to the circuit board as the digital display lights up as it should. But when I try to turn on the ac, the fan does not engage. I hear what I believe to be the compressor running, but there's no air movement. If I select just the fan mode, obviously I get nothing. I took pictures of all the electrical connections and position of all parts to help ensure proper placement of everything when putting it back together. As I stated, I'm pretty sure I ran it before I installed it into the window to make sure it worked. But my memory is beginning to fail me. So there's a small chance I didn't. Is this something I could be guided through troubleshooting ?? I have a test light, multimeter and such, but am not the smartest when it comes to diagnosing this type of problem. If it would be to difficult to walk me through troubleshooting this, would it be worth having a professional come out to diagnose this ?? As in would it cost me close to the cost of a new unit ?? If I knew what the problem was, or bad part was, I'm sure I could replace it. This is in my garage, and will only be needed on an occasional basis, which is why I didn't want to purchase a new one. Advice and opinions will be appreciated.