It's a high pressure switch. It keeps the unit from running when the coils aren't being cooled, such as when the water pump is inoperative or blocked. It seems their next generation unit had low and high pressure switches. If it turns out to be the compressor, I will call someone, but why would I call someone to replace parts that probably cost $25 or less?
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Thread: AC Compressor Stopped
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06-06-2021 05:57 AM #21Senior Member
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Re: AC Compressor Stopped
Prometheus
1978 53' MY Hull #529
Viera, FL
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06-06-2021 06:46 AM #22Senior Member
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- Jun 2018
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Re: AC Compressor Stopped
Thanks for pointing out my misidentification of the reversing valve. That led me to follow the connections to the compressor, and find the fault. A corroded wire / broken connection.
IMG_2286.jpg
Doesn't seem to be a relay between the switches and the compressor, unless it is in the compressor body. To the right is the thermal overload switch.Prometheus
1978 53' MY Hull #529
Viera, FL