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Tyro
19-08-2016, 12:29 PM
I have replaced the starter and run caps and I am still getting nonsense readings from the relay, so I guess it's dying/dead.

The present relay is a White Rodgers RBM 90-"69", but the only labelling on it reads "F128366 - 138100 9211" (which may well be just the original stockist's code?), so no way of telling which exact voltage profile it is.

I have two questions at this stage:

1. Does anyone know what the correct pick-up & drop-out voltages are for an old Prestcold K100?

2. Can anyone point me in the direction of obtaining Prestcold installation/maintainence/repair manuals (or any other relevant literature)?

Brian_UK
19-08-2016, 07:34 PM
The F128.... code is a model number as in 128-366-1831xxxx, but I can't find your numbers anywhere.

Have a read of the older thread which asked the same questions.

http://www.refrigeration-engineer.com/forums/showthread.php?30586-Prestcold-K100-compressor-starter-kit