Truck Forums - A/C icon blinking on display

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Larry767

Oct 25, 2007 07:51 PM

A/C icon blinking on display

I just bought a used 1992 GMC extended cab truck and when I try to turn on the A/C all the text "A/C" appears in the LED display area and starts blinking. The compressor never kicks in and the blinking A/C text does not go away until you turn the key off and back on. Does anyone know what this means? I'm guessing the A/C might need to be recharged or something but I've never seen this symptom on any of the GM's I've seen.

Argon

Oct 25, 2007 09:05 PM

RE: A/C icon blinking on display

its low of freon...you'll have to disconnect the battery to clear it before you begin putting freon in

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