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Toyota Service
Toyota Service, Toyota Expert
Category: Toyota
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Experience:  30+ Yrs of auto experience, Award Winning Svc. Manager; Just Answer Customer's Choice Award Winner
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Have 2010 Rav4. A/C compressor not running Midas says it's

Customer Question

Have 2010 Rav4. A/C compressor not running Midas says it's electrical. Do you think you can help?
JA: Thanks. Can you give me any more details about your issue?
Customer: A/C quit working after switched to Heat then back to A/C
JA: OK got it. Last thing — Toyota Mechanics generally expect a deposit of about $20 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Toyota
Expert:  Toyota Service replied 1 year ago.

Most commonly, the AC being inoperative can be traced to the following items:

Faulty MG CL relay (in the fuse panel under the hood) (Remove and replace)

too low refrigerant charge (test pressure, add if too low)

too high refrigerant charge (test pressure, drain if too high)

Compressor RPM sensor failed (but this would make the AC light blink)