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My A/C button is not working on my 1999 toyota rav4.

Customer Question
My A/C button is not working on my 1999 toyota rav4.
Submitted: 5 years ago.Category: Toyota
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Answered in 1 hour by:
5/21/2012
Toyota Mechanic: Amedee, Toyota Technician replied 5 years ago
Amedee
Amedee, Toyota Technician
Category: Toyota
Satisfied Customers: 27,111
Experience: ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
Verified
Hello!

If your air conditioning in not working, or working but not up to par, there can be a few different things that can cause this. There can be anything from restrictions in the system to your blend air door vents not working properly. First and foremost is look to see if your compressor is coming on. If all of your freon has leaked out or even if the freon level is a bit low, the computer will not turn on the compressor. This is to prevent damage to the compressor and the components. This is very common! If the compressor is cycling on and off, than the system is just slightly low on freon. This will cause the AC to work, but poorly. Look for moisture around the outside of the AC fittings. This will indicate a leak. If no moisture is detected, you might just be able to get away with recharge.

I hope this helps!
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Customer reply replied 5 years ago

I already replaced the compressor, but the problem is i cant fill it when the A/C button doesnt work, therefor i cant fill the compressor until it turns off.

Toyota Mechanic: Amedee, Toyota Technician replied 5 years ago
That is incorrect. You don't need the AC compressor button to work or even the AC to turn on in order to fill the AC system. I do it all of the time.
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Customer reply replied 5 years ago
I tried to fill the other new compressor but its not taking anything. I tought the compressor nedded to be on to take the freo since it doesnt take any when off.
Toyota Mechanic: Amedee, Toyota Technician replied 5 years ago
What type of tool or machine are you using to fill the freon?
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Customer reply replied 5 years ago

I use the normal hose the short one

Toyota Mechanic: Amedee, Toyota Technician replied 5 years ago
No.. what type of machine are you using to install the freon?
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Customer reply replied 5 years ago
Just the hose no machine
Toyota Mechanic: Amedee, Toyota Technician replied 5 years ago
Thats your problem. I have never filled up an AC system without using an AC machine nor would I recommend doing so. It needs to be done using a professional AC machine. Hands down!

If for some reason that still does not work, then you have a restriction in one of your Ac components and the bad part or component will need to be replaced.
Amedee
Amedee, Toyota Technician
Category: Toyota
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Experience: ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
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