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Old 20th Apr 2017, 11:53 am   #1
PsychMan
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Join Date: Jun 2013
Location: Fleet, Hampshire, UK
Posts: 1,764
Default Fridge compressor capacitors

I have a working late 50s Frigidaire fridge. I'm going about rewiring it as the insulation is dropping to bits. It has been fitted with an electronic starter circuit to engage the start windings briefly, and up until now has been run on a timer plug as the thermostat has failed. I'm adding an arduino board with a temperature sensor, and a hefty solid state relay to engage the compressor depending on temperature. I've tested this as a lash up and it works very well, so I'm going about installing it all properly.

I notice the fridge doesn't seem to have a run capacitor, but the compressor does work without this. When reading about compressor wiring online I see a lot of references to run capacitors, I'm assuming these aren't needed for all compressors? I just want to make sure I'm not missing something, as I cannot locate a run capacitor on this model.
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