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After my vans been idol during lockdown, the air con has now stopped working. Before I get the obvious re has I wanted to fault find on the compressor side. The clutch on the compressor isn’t engaging. I can spin the outer with my finger from underneath but no movement otherwise when ac is activated. I’ve tried to bypass the pressure sensor to see if the clutch actuated, but no joy. I’ve got 12v going into the compressor but wondering if it still needs active pressure from the system to activate, hence bypassing pressure sensor to try and trigger the clutch. Thanks
 

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There are high and low pressure sensors on the system - too low and it should cut out - too high definitely does work on mine as the garage overgassed it last year☹
 
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