Neighbor out of town for medical care for a couple of months. My job was to drive cars. My better half made soup and I delivered prior to their arrival late that day.
Entering house odd musky smell ... yeah, refrigerator compressor had stopped working. Got OK from neighbor to take a look. All else was working so pulled power for a few minutes. Restarted but still no compressor (or condenser fan). Powered off and pulled covers off main control board. Powered back on and wiggled each connector. When wiggling power connector on the board that I think goes to the compressor and fan (lower right but since somehow the photo is rotating on loading, it is the connector with the larger wired, one bright blue), got twitches from the fan motor - lower right. Powered off, disconnected connectors, pulled board and examined back side - nothing obvious. Flexed board back and forth - sometimes this will move pins into better contact with bad solder connections. All back together and works.
Neighbor likely to get a new refrig, but we will try to reflow the solder on the pin connectors and use as backup garage frig. Will also carefully examine the connector itself.