Engine Size: 305
I am not exact on how the superheat switch works on the back of the GM A6 compressor. The reason i ask is that i believe i have broken the connector that plugs into the back of the superheat switch. I have reattached the rubber boot with what is left of the connector. My question is if the connection is in fact broken will that cause the fuse to blow that is on the wheel well? even if i have a full charge? I read the description of the switch and how it works but cannot reason if it will blow or not in this situation. Also, if i can ask what terminals do i jumper on the connector to get it to work?
The switch grounds the fuse and causes it to blow the circuit and shut off compressor-IF the temperature of rear of compressor gets too hot. If it is not plugged in, you are not protected - but compressor will run. Compressor gets too hot when refrigerant charge gets low- so as long as charge is good (doesn't leak out) then you'll be okay, but if cooling gets dismal from a low charge, then the compressor can overheat.
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......
I have those thermal limiters if you get in a bind for them. Many parts suppliers do not have them anymore.
Thanks GM Tech -- that is exactly what I was looking for! Great Forum!
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