Question about 2006 Lexus Gs 300

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A\c blinking After working for about 5 minutes my A\C starts blinking, and Check Air Conditione is displayed. What is the reason of this? What shall I do?

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There can be numerous reasons for a blinking AC light / check AC. Low pressure, low voltage, temperature too high/low, sensor failure...
I'd suggest have it scanned for errors first.

Posted on Dec 05, 2013

  • Bill Boyd Dec 06, 2013

    all air conditioner systems rely on a device called a TX valve . This is a preset orifice in the evaporator (bit under the dash) that allows the liquid part of the gas to spray out into the evaporator and evaporates because of the heat in the car. The amount of liquid that is allowed to flow is controlled by the thermostat. Add to the mix there is a constant flow of lubricating oil in the system that flows all around with the gas. Problems such as you describe may be from too much oil trying to get through the orifice at once- the thermostat is intermittent in it's control-blockages in the receiver dryier--- moisture in the system from an incomplete evacuation at some time causeing icing and blockages in the receiver drier or TX valve.. I would suggest that you find an auto air conditioner professional ( not an auto electrician doing ac work) that is involved in the installation of systems and would have solid experience in fault finding and diognistics

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Have an auto air condition mechanic check the inlet and outlet pressures on the compressor. Check for gas leaks

Posted on Dec 05, 2013

  • Akki J
    Akki J Dec 06, 2013

    The strange is that it does from time to time now. So it is not the problem which occurs every time.

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