Climate control troubles

[MatS]

Bought my GSR already fitted up with climate control and lately it's been playing up

The fan controls work fine (flow) and the loaction selectors are ok, but putting it on any tempurature gives out luke warm air. The AC button apears to be working (clicks the relay for the compressor).

I first thought it had a leak and had droped it's AC gas (or just needed regassing), but we had a cold front the other day and cranking the temp up to it's hottest resulted in nothing but luke warm air again :fuuuuu: Which has me thinking it's something to do with how it regulates temps.

I removed the glove box etc and without really knowing what i was looking for, things appear to be happening how they should when I press buttons, with the exception of the temp buttons.

I've swapped out the climate control head unit for another one and still have the same problem. Would anyone that has done the swap (or knows more about how the system works then me!) be able to point me in the right direction of what the temp buttones control? I'm guessing it should control a motor of some sought that moves a valve/flap to regulate how much air goes through the heater core?

 

[evopwr]

damn,

for me its the opposite. all i can get is hottt hotttt air. I don't have aircon, but still I should be able to get ambient temp?

 

[philsth]

There are generally 3 motors, 1 for air outlet positions, 1 for inside(recirculate)/outside(fresh) and 1 for air mix, it sounds like your air mix motor isn't working. especially as you changed the controller with no change.
I not familiar with the set up so if you can get at all 3 then run through all the functions to determine which one doesn't move and that'll be it.

 

[MatS]

Cheers Philsth, I thought that's how it would be. I'll go for another hunt on the weekend, I already droped the lower dash and ran through the functions, but couldn't find the air mix motor. anyone know where it is?

 

[mototo]

yup, this servo is located on the bottom of the centre air box

so facing the centre air box from the driver's perspective, you have,
1. servo on the bottom for the air mix
2. servo on the driver's side for air vents

here's hoping your gsr had the JDM loom with all the plugs in place and not retro fitted. try swapping that servo with the air vent servo. these 2 are the same servo's

the 3rd servo is located at the blower. this one just allows recirculation or fresh air. therefore it only has off or on and is not suitable as a replacement or a test. you will find that the plugs have alot less wires for this servo anyways.

hope that helps. if you need pics to pinpoint them exactly i have a few when i retro fitted mine.

Alex, it "tries" to get ambient air. I know for a fact on mine if i had it on auto, and then turn off a/c, the blower speeds will increase to try to cool the air down. but it wont work as all its sucking in is already hot air. Again have not tested the system in winter tho.. but this entire summer, thats how it has been working for me if i had it on this arrangement.

 

[MatS]

Thanks mototo!

I'll have a look this week.