My vents will blow nothing but hot air out. With A/C on/off...doesn't matter...all directions of air work, but nothing but hot air. I hear the A/C compressor...I don't think it's the A/C that's the problem b/c you'd at least get ambient air, dont even get that. It's like everything is being cycled through the hot air.

The problem started a couple weeks ago. It would switch from cold A/C to hot air and back to A/C. Then I had to start turning it to HOT and back to cold again. Now it's all hot.

Any ideas?

 

It's your HVAC controls, they are bad. There's a TSB on it I believe or you can just simply fix it yourself if you're confident about soldering. There's a DIY on the soldering. SEARCH next time.

 

https://www.rx8club.com/search.php?s...=5209734&pp=50

I did search

and didn't find anything close to this DIY you speak of.

The TSB I found was this one:

http://www.finishlineperformance.com...02-04-1338.pdf

Is that the one you're talking about?

thanks,

Derek

 

I just did a search and looky what I found.

https://www.rx8club.com/series-i-do-yourself-forum-73/diy-no-heat-repair-heater-control-158200/

 

That's one of them.

 

lol that's titled 'NO HEAT?'....i'm like....TOO MUCH HEAT, so I ignored...the details do state its for both tho.

If you know of another TSB on A/C, let me know

 

I'm actually looking for the HVAC TSB.

 

I think that's the only TSB (the one you posted) that they have for the HVAC issue.

 

The condenser on 04's do not have protector screens, there is a good chance you have a small hole and lost your r134. If that is the case you can do what I DID.

 

Hey thanks for that link too. I just checked this:

"Easy Diagnosis:
The easiest way to verify this is to turn on the radio, press and hold the power on/off button and press and hold the scan-up button for a second (full second). The word "A/C TEMP" should appear on the left of the display and a number from 0 to 16 on the right. I suspect yours will have the number 0 (or 16 if heating only problem) displayed no matter where you turn the temperature control ****. If this is the case you could turn the temp. **** to full heat and see if it goes to 16 after pushing down or to the right on the ****.
In a working system, the number moves evenly in increments of 1, from 0 to 16 as you turn the temperature ****. "

And sure enuf it was stuck at 13, but I can play with it a bit and get it to go back down....I know that wont last, but me and my brother will take the radio out in a couple weeks and do the solder job. Thanks again....can't believe the No Heat didn't return in the 'hot air' search.

 

No problem.

Glad I could be of help.

 

its the control ............. ahhhhhhh nevermind