OP, I have the exact opposite problem. Since you're in Anaheim and I'm in Colorado, let's just trade cars.
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mine has this problem first it started w only the passenger side blowing kinda cool air and hot air on the driver side they fixed it they said it was a faulty o ring.4 months later same thing they fixed it again they said i needed a new ac compressor so they ordered it they still havent called me but then again it's only been 3 days
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If the symptom is that there is no heat and only cooling I would suggest checking out this hasty DIY I put together after successfully repairing the heater control unit. It may apply to the "only heating and no cooling" as well. The easy way to check is turn radio on, press and hold the power botton then press and hold for 1 full second the up-scan button. The display should read "AC" on the left and a number from 0 to 16 on the right. The number should change evenly from 0 to 16 in increments of 1 as you move the temperature knob from cold to hot. If it does not (most commonly stays at 0 despite knob position) then your temperature control knob has bad solder joints. See DIY below:
https://www.rx8club.com/showthread.p...31#post2675231 Good luck. |
Awesome tip. ^
A few days ago I found that my temp knob was acting for the normal temp range for all settings until it got to max heat, then it switches over to max cold, and i have to cycle the button a few times back and forth before it does anything but cold air. 1 tick away from max heat keeps it fine atm. Edit: I did this on the way into work. going from 0 to 1, it blips to 1, but then back to 0, and doesn't move for any of them. Thanks for the tip for quick diagnosis. |
going to check this out today, my ac blows hot in driver side area and cooler in passenger side.
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Originally Posted by Chino_rx3
(Post 4503544)
going to check this out today, my ac blows hot in driver side area and cooler in passenger side.
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My a/c blows hot air when the knob is all the way to the left (max cold), and i was playing with the knob and when i put it in the middle, it was cold...weird :dunno:
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With over 8,000 posts we would figure you'd know that it's not "weird" and it is the control unit's solder joints...
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Originally Posted by SayNoToPistons
(Post 4504034)
With over 8,000 posts we would figure you'd know that it's not "weird" and it is the control unit's solder joints...
I'm not good with electrical issues...sorry |
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CHECK YOUR COOLANT LEVEL! If the level is very low, it will not allow the thermostat to open up from the initial restricted mode during startup. Eventually this will give you a check engine light. but until then, it will simply not give you any heat.
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But that is a completely different system and doesn't concern the A/C.
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So Idk if anyone else has had this problem but my A/C blows hot air regardless if the A/C is on or not. Cold can be maxed out and still the same issue. Even when the fan is on the OFF position it still continues to blow hot air. I want to take the unit out and check the wiring but other than that I have no other ideas of what it could be. Any ideas?
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Originally Posted by BradyMayhew
(Post 4693739)
So Idk if anyone else has had this problem but my A/C blows hot air regardless if the A/C is on or not. Cold can be maxed out and still the same issue. Even when the fan is on the OFF position it still continues to blow hot air. I want to take the unit out and check the wiring but other than that I have no other ideas of what it could be. Any ideas?
so did you even read this and do the test. What is the lowest and highest numbers you get? |
Originally Posted by BradyMayhew
(Post 4693739)
So Idk if anyone else has had this problem but my A/C blows hot air regardless if the A/C is on or not. Cold can be maxed out and still the same issue. Even when the fan is on the OFF position it still continues to blow hot air. I want to take the unit out and check the wiring but other than that I have no other ideas of what it could be. Any ideas?
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Originally Posted by logalinipoo
(Post 4693746)
so did you even read this and do the test. What is the lowest and highest numbers you get?
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Mine has started this after changing the radiator and one of the fans. No more overheating but now blowing hot air. Now the clutch clicks for a second then turns off. Now while parked I Rev the car to 2000 rpm and freon steamed out from the compressor a lot.
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rob, you still didn't figure that out huh. You should probably get a set of gauges on it. it might have a blockage and not be flowing freon through the system so it overpressures.
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Could be the heater control. From time to time, mine is on the coldest setting and blows hot air for a few seconds... until I tap it a bit and it gets cold again. Started recently. Happened 2 or 3 times for brief moments. I'll probably source a new one from the junk yard... or open it up and solder it.
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Anyone found a solution for the rx8 a/c problem? Mine is not working also. Just bought a new compressor and had it changed but when I switch the a/c on it doesn't come on unless I manually go to the front bonnet where the fuses are and open fuse box, open black smal cover of the a/c relay and press relay infront with an iron (fuse tester) of side of the relay. The it clicks and forces the a/c part of the compressor to spin. I tried switchim other relays to that particular a/c relay but its still the same. Some one pls help
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Have you checked the heater control know is functining. It is very common failure if 3 solder joints that are extremely easy to solder. It takes about a hour. From start to finish.
There's a simple function test for it also. |
Repair video
I made a video on youtube on how to fix this issue by resoldering the three connection points on the ac control motherboard.
https://youtu.be/CtXJUZPz-DI Hope this helps :) |
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