My 1994 Adler/Barbour Super Cold Machine no longer cools much and the unit runs constantly if left on. The coils are clean. It is a model DCM-12, s/n 24320. We are in central Minnesota and would like to have it serviced. Is the refridgerant R-12???
You can find out what type of refrigerant is in your system by looking on the identification tag on the compressor. If your system was built in 1994 it is using R-134a. The last unit using R-12 was built in 1992. To be sure you must check your tag as the unit could have been built in '92 but not purchased until '94.
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