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What is your question?
The air was cooling just fine when I left the house,went to store,air is now barely cool.Blower working fine.Thinking low charge..put gauge from interdynamics 134a EZ Chill 22oz.can refill on low side port, car & a/c running. Pressure goes up to 50-52 then immediately "clicks" off and down to 18-20 then immediately "clicks" on back up to 50-52..constant "click" on/off and pressure up and down. Have not added any 134a yet in case it's a switch and not a low charge. What's up?

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