HVAC issue

[imranshouket]

Hey Folks,

I have got a gr8 problem with the HVAC system in my car. Whenever i start the vehicle the A/C swiches on to AUTO Mode and for about 20seconds it stays there before letting me operate the A/C switches. This happens everytime I switch off the vehicle for atleat 15-20 minutes, and if I switch the vehicle off for more than 3-4 hours, and then I switch it back on, the Auto issue is still there but also the temperature settings increase, say I left it at Lo, and when i switch on the A/C after 3-4 hours, the temp is jumped to 25C, why is this...please guys I am frustrated.

 

[Gary Stockton]

That sounds suspiciously like factory settings to get interior climate to a specified temp and humidity. Anything in your handbook about setting those startup values??

And welcome to the club!

 

[imranshouket]

thanks for the reply..no well nothing of this sort written in manual, I am just trying to figure out whole day, but could not find anything anywhere, although I am aware that when the auto mode is on, and any other switches on the A/C panel cannot be operated that means that the A/C amplifier is trying to initialize the servo motors, but why does it try to initialize after every 15-20 min the vehicle is switched on, but this does not occur in other land cruisers of the same model.

 

[Gav Peter]

Didn't Warren have something on this on his 100 series???

Try the next wection down Imran & then post us some pics of your 200 series

Welcome to the club

 

[imranshouket]

cant find anything yet, so upset on this issue

 

[Gav Peter]

Sorry, neither could I

If I find it, I'll post the link up for you

 

[imranshouket]

Thanks Gav, will wait for your response

 

[GotLandCruiser]

imranshouket, did you ever find a resolution here. I am having the same issue. Very frustrating.

 

[tempestv8]

Sounds like some kind of a fault.

When I start my vehicle, I can control the HVAC system immediately. Sometimes I don't want the system to be on Recirc, so immediately after I start the engine, I change the setting to fresh. I do not experience a 20 second delay where the HVAC system is not responsive.