weird things happening with heater

[colinmartin]

2003 ctt

hi guys

I am having a weird problem with the heater/ac I turn it on seems to work ok but when I pull the wash wipe the blower starts running faster ,it seems to stay good until I restart the car and again same problem,I am guessing it might be a problem with an earth ? does anyone have a good idea where I should be looking?

Edited May 19, 2014 by colinmartin

[wrinkledpants]

When you pull the stalk to turn on the washer's, the HVAC system automatically goes into recirculate mode so you don't get the smell of the washer fluid in the car. It should go back to fresh air after a minute. You may try and see if you can manually turn on and off recirculate yourself to make sure the solenoid is working that actually opens that fresh air flap. If you're unsure whether the recirculate solenoid is working, pull the dash pad down from beneath the glove box. The HVAC fan is right there, and you'll see the small motor that is connected to a long arm. You should be able to turn off and on the recirculate button and watch that open and close. If it's not working properly, my guess is that solenoid is bad.

The fan will sound louder if you turn on recirculate as there isn't as much resistance on it. While you're under there, you should ensure your HVAC filter (cabin filter) is not clogged. It should be changed out every few years, and if it's really dirty, it could really restrict the airflow going to the HVAC fan.

[bigbuzuki]

Wrinkled....I can't find where the washer and HVAC recirc mode correlation is listed or described in the operation manual.

Does the recirc light come on for the period the washer is activated?

[wvicary]

Wrinkled....I can't find where the washer and HVAC recirc mode correlation is listed or described in the operation manual.

Does the recirc light come on for the period the washer is activated?

No light comes on but you can hear the door close and the fan noise changes pitch.

[wrinkledpants]

Wrinkled....I can't find where the washer and HVAC recirc mode correlation is listed or described in the operation manual.

Does the recirc light come on for the period the washer is activated?

I always have mine on auto-recirculate, so I'm not sure if that needs to be turned on for the feature to work. Yes, the minute you engage the windshield washer - the HVAC will close the fresh air flap. You don't get any notification that it's happening - it just does it. Maybe 30 seconds to a minute later, the fresh air flap will re-open if it was previously open.

[colinmartin]

thanks for the info good to know.....