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Discussion Starter · #1 ·
Maybe not insane, but I have to drink warm beer on occasion:mad:

Nova Kool LT 200
Year 1988
R-12

When I turn the unit on, it runs (and cools) anywhere from 5 minutes to several days. When it works right, it cycles properly keeping a constant temperature.
I checked all the wires, checked the voltage.
Shutdowns have occurred with fully charged batteries and low batteries, plugged into shore power, cool days in winter, warm spring days, other appliances running or not, beer in the fridge or not.

When it stops running, every three or four seconds there is a one second high pitched squeal. The unit will not restart by itself.
At this point, I turn power off and then back on. Sometimes it starts right away, sometimes it takes a long time flipping the breaker off and on.

Any ideas?

Thanks,
Neal
 

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Discussion Starter · #7 ·
I would also vote for the compressor or the fan if the condenser is air cooled. It definitely sounds like something motor driven.
Compressor has a fan that works fine. I did disconnect the fan for a while and that made no difference in the behavior.

I checked the motor per troubleshooting instructions and it checks out. Procedure is checking for resistance. I am wondering what could be wrong with the motor? I am assuming it is an AC motor (no brushes to wear out) so a short, a burnt out winding, corroded wires and whatever would be there and not intermittent.
What makes troubleshooting so difficult that I cannot induce the failure and there seems to be no "outside" element that makes the unit stop.

The only "clue" I have is that after a stop the unit will not restart at all by itself. It can sit there for days squealing, but if I turn the switch off and on it might start right away.

Neal
 
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