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Discussion Starter #1
My AC works only intermittently. When it is on it works well but I usually can't get it to turn on. I've tried using the AC button (I usually use Auto for climate control.) and I've tried turning the fan to high but still I can't find any logical cause and affect reason for the AC to be intermittent. Any suggestions?

My MDX is a 2008 with 108K miles.

Thanks,
Doug
 

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Compressor clutch relay. Happens a lot.
 

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Discussion Starter #3
Thank you!

Compressor clutch relay. Happens a lot.
Excellent! Thank you very much. I found that relay and replaced it with the relay that I think controls the fog lamps and the AC works now. Both relays were 12v 120 ohm and in disconnected mode when no power is applied.

I will buy the new improved relay to replace the failed one.

According to my research the failed relay can cause refrigerant to be vented out. If the AC isn't cold enough I will get it recharged.

Thanks again for your help.
 
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