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Air Conditioning Temp Control Switch

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Old Jun 14, 2025 | 11:51 AM
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1978f150rangerxlt's Avatar
1978f150rangerxlt
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Air Conditioning Temp Control Switch

Hello I disconnected the switch and can't remember which wire goes where . All pictured i have seen of the sensor have them next to each other but my sensor has them one on top of the other and has a "L" on one and a "C" on the

other
 
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Old Jun 16, 2025 | 06:50 AM
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It should just be a open or closed switch so should not make a difference what wire goes where.
But if it makes you feel better I would think "L" would be load. No clue when "C" is maybe control?

But again open or closed switch.
It would be NC to lot power go to the compressor and when the coil get too cold the switch opens and the compressor stops to keep it from turning to a block of ice.
Once he switch warms up the switch closes and the compressor runs again.
On the later trucks they use a pressure switch that is also closed / open. When the coil gets too cold the system drops and the switch opens and the compressor stops just like your switch.
Dave ----
 
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Old Jun 18, 2025 | 03:00 PM
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1978f150rangerxlt
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Thank you for the information glad to have ac going in the truck again.
 
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