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AC not working l series 1990

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I'm pretty sure the light is just switched by a switch in the button.

Does the compressor turn?  Does it run?  Is there Freon in the system?

 

2 hours ago, DaveT said:

I'm pretty sure the light is just switched by a switch in the button.

Does the compressor turn?  Does it run?  Is there Freon in the system?

 

There is also a sensor on top of the AC pulley that is held by one 10 mm bolt (14 mm head) and one 6mm bolt (10 mm head).  Make sure the sensor is as close to the pulley as possible.

 

Good luck,

Sam

  • Author
8 hours ago, DaveT said:

I'm pretty sure the light is just switched by a switch in the button.

Does the compressor turn?  Does it run?  Is there Freon in the system?

 

No,the compressor does not run

There is an electronics box in the system.  What it does is monitor the sensor above the compressor pulley,  and the pressure limit switches.  There is also a thermostat switch in the evaporator.  All of these are involved with allowing the compressor clutch ro be energized.   Make sure it's getting 12V first.  Probably be good to find the schematics also.

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