Started the RX330 this morning and no air was coming out of vents, So when I got home I let the car cool down check coolant and both fans turn on. I adjust the air condition setting and seems that compressor kicks on but no air flow..so I held the recirculation button and auto button since A.C. and Nav are together and got codes 21 and 24 ...I took RX330 outside since on another forum it read solar system solenoid and re-held the recirculation button and auto button since A.C. and Nav are together and got codes 00 but still no air flow through vents, as I moved RX 330 to back into garage I got codes 21 and 24
where can I find the codes info at ?and what do i need to do from this point to fix it or could it be the fan? any assistance is greatly appreciated

 

check this may help
https://www.clublexus.com/forums/gx-...code-24-a.html

if only no air flow I may test blower motor first, has better with Techstream scan A/C system for errors.

 

I spent the afternoon trouble shooting with a lexus tech he stated If you are getting no airflow from the vents or defrost vents or the floor vents no matter what setting the fan switch is on then the blower motor has failed. He had me confirm it by checking the 7.5amp heater fuse inside. The vehicle is driveable and it won't over heat..will order part and keep all posted

 

Highly doubt the root issue is a heater fuse blown, but check two fuses no hurt at first.

I doubt the blower motor regulator resistor is shot which may cause fuse blown or may just dead itself [fuses are fine], if so then either blower motor or blower resistor will need replaced.

my 2¢