Yesterday, while rerouting and untangling wires to make space for my solar/lithium conversion, I disconnected a green/black wire from the blue wire going into the furnace and untangled it from a mess of other wires. When I went to reconnect it, I realized that there is a blue wire and a blue/white wire going to the furnace, and I hadn't been very careful to examine that before disconnecting. I came home and looked up the generic wiring for Suburban furnaces, and found that the thermostat goes to the blue and blue/white wires. The odd thing is that the thermostat wires were both connected to the same furnace input. The thermostat wires were stripped, twisted together, and connected to one of the blue blue/white wires, and the other blue was not connected to anything. Our furnace has always worked, so I'm wondering if I'm missing something. I'm pretty certain that the thermostat wire should be separated and one should go to each of the blue wires. What are others thoughts?
In the picture, you can see that the thermostat wire casing has never been separated, so I'm not just suffering from a "senior moment." Residue on the blue/white wire is just tape.
In the picture, you can see that the thermostat wire casing has never been separated, so I'm not just suffering from a "senior moment." Residue on the blue/white wire is just tape.
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