Air Con Problem

[BOVed]

Ive been hunting for a thread from a while ago (cant find it keep searching)their aircon was blowing hot air, Ive got the same problem and someone said they should try taking out and cleaning the temp sensor in the dash, how do you do this?

[nathn_r33]

Is it blowing hot air when the aircon is turned off or when the aircon is on cold?

[R32FOURDOOR]

OK

What the problem is there is a door in ur air conditioning under the dash.

When you press cold the door opens and cold air from ur airconditioning system comes out. When you press hot it closes the door on the cold and lets hot air come through.

That little arm thst moves the door isnt moving, the cold door is closed hense hot air

on my r32 i had the same problem but if i held down the cold arrow it would go into "FC" mode this was the only thing that made the cold air door open

i dunno if its the same on r33's

[BOVed]

Is it blowing hot air when the aircon is turned off or when the aircon is on cold?

When its on cold

[BOVed]

OK

What the problem is there is a door in ur air conditioning under the dash.

When you press cold the door opens and cold air from ur airconditioning system comes out. When you press hot it closes the door on the cold and lets hot air come through.

That little arm thst moves the door isnt moving, the cold door is closed hense hot air

on my r32 i had the same problem but if i held down the cold arrow it would go into "FC" mode this was the only thing that made the cold air door open

i dunno if its the same on r33's

Ill try that and see

[joc]

I have the same problem when i press a/c on i only get hot air.my mechanic seems to think its the controller its self, and reckons there worth 500 bucks.cheers

[lwells]

You should also check if the aircon is actually engaging when you turn on the AC. If its not, check your fuses.

[Syphon]

As suggested above, make sure the compressor is clicking on and engaging when you start the aircon. If it's not doing that, you have either an electrical problem, or the aircon needs to be regassed. With no pressure in the system, the aircon won't engage.

Another problem which can occur is when the dash has been removed at some stage, there is a little plug which goes into the back of the dash airtemp sensor. It can be easily knocked out, and the climate control won't work, thus blowing hot air all the time....although if you set the aircon to coldest setting you should get cold air.

R33, the sensor is in the dash to the left of the steering wheel, there is a little grill you can see in the dash. On the R32, its located in the centre console area I think to the left of the gear lever.

So check to see if you get cold air when on coldest setting, if you don't and you can't hear the aircon compressor activating, you most likely need a regas. This will mean the system is leaking somewhere, hopefully not in the evaporator which is behind the dash

As suggested above, it could also be the actuator which opens and closes the door allowing hot or cold air to flow. IMHO, that would be the last thing to check.

When all else fails, aircon specialists should find the problem in no time.

[daveharvey.ca]

I have a similar problem- my compressor clicks on seemingly (rev's jump) though I only ever get ambient temp air coming out, even at FC. I keep blowing the same A/C fuse though, I've done it over and over, it only blows when I turn on the A/C - not during normal fan/heat operation. The fuse is #8 in the diagram below (R32 under-dash panel). The other A/C fuse (#17) never blows.

I figure I have a short somewhere, but where should I start looking? Any ideas?

[lwells]

I have a similar problem- my compressor clicks on seemingly (rev's jump) though I only ever get ambient temp air coming out, even at FC. I keep blowing the same A/C fuse though, I've done it over and over, it only blows when I turn on the A/C - not during normal fan/heat operation. The fuse is #8 in the diagram below (R32 under-dash panel). The other A/C fuse (#17) never blows.

I figure I have a short somewhere, but where should I start looking? Any ideas?

#8 fuse is the fuel pump. I think you mean #10, in which case your windings are probably shot; there are some tests in the workshop manual you can run. If it is your windings, your looking at ~$120 and a day or two of work. See the tutorial I posted about removing and repairing it.

Fuse guide:

http://www.skylinesaustralia.com/forums/in...md=si&img=47849