Without a meter, it will be hard to trace the problem, might want to replace it, it's a rather old unit, new ones are much more efficient, less chance of failure.

First I would verify you have a problem with the compressor start components. If you suspect them, then replace them with the URO41 device.

There is no shutoff in the fridg that would interrupt power. I would start at the wall outlet, then check for missing voltage at different places in the fridg.
If there is a control panel connector, I would disconnect it and spray with non-residue contact cleaner available at Wall Mart.

Hi Rich:

FYI. When it would shut down, I found that when I pushed on the outside of the on/off switch it would sometime start up again.
I pulled the AC plug and inspected the four contacts on the on/off switch. I found that one contact (all four contacts use a quick disconnect system) had signs of being burnt and somewhat corroded with black residue. Remember this unit is 12 years old, so it could have been building up since new.

I replaced that quick disconnect plug, cleaned all four contacts, insured that all four were making good contact, and fired it up.

So far the problem seems to have been cured. I suspected that because it was so intermittent, it would turn out to be something weird like this. I wanted to pass it on for your knowledge base.

Again, thanks for all the help Rich.

Howie Burch