Turning off AC for window defrost
Thread Starter
Registered User
Joined: Mar 2009
Posts: 296
Likes: 0
Turning off AC for window defrost
So winter hits, and i blast my heater in the morning towards the windsheild to defrost the ice over night... but when i do that AC is turned on. I know the trick to turn it off, but question is should I turn it off? because i might need it to defrost when it fogs up while driving. advices?
Joined: Oct 2009
Posts: 29,830
Likes: 5,412
From: Ontario Canada
I personally wouldn't do it on my car because your air conditioner will last longer when used at least twice a month for 10 minutes at a time all year long. I make sure to run mine a couple times a month even if not needed. AC referigerant has a lubricant with it that lubes the seals in the system, if you keep the seals lubed they are less likely to fail as they age. It also helps a lot in rainy/damp conditions that can occur any time of the year. It's your choice though.
Registered User
Joined: Aug 2008
Posts: 1,088
Likes: 0
From: Modesto, California
from the FAQs up above...
How can I turn the AC off when using Defrost? (2002+)
• First, we should take a look at the reasoning behind this... The process of air conditioning removes moisture from the air. This dry air works better for removing fog from the windows. To assist with defrosting, Honda has "programmed" the HVAC system to engage the A/C whenever the defroster is turned on. The trouble is, you cannot turn it off.
To deactivate automatic a/c feature on a 2002+ S2000:
1) Turn the ignition switch "on," but dont start the car.
2) Turn fan speed off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob to all the way to the left (panel position).
5) Turn the ignitions switch "off."
6) Hold down both air recirculation button and a/c button while turning the ignition switch "on." Nothing lights up initially, keep waiting. The orange air recirculation indicator on the button will start flashing.
7) Continue holding both buttons until the orange air recirculation indicator stops flashing, then let go.
To reactivate automatic a/c feature:
1) Turn vehicle off.
2) Turn fan knob off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob all the way to the right (defrost position).
5) Hold down both air recirculation button and a/c button while starting car.
6) Continue holding for 7 seconds until air recirculation button stops flashing.
7) After the 7 seconds described in step 6, the recirculation button will start to flash. Continue to hold the button for another 7 seconds. After this, the a/c light will turn to green and it's finished!
How can I turn the AC off when using Defrost? (2002+)
• First, we should take a look at the reasoning behind this... The process of air conditioning removes moisture from the air. This dry air works better for removing fog from the windows. To assist with defrosting, Honda has "programmed" the HVAC system to engage the A/C whenever the defroster is turned on. The trouble is, you cannot turn it off.
To deactivate automatic a/c feature on a 2002+ S2000:
1) Turn the ignition switch "on," but dont start the car.
2) Turn fan speed off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob to all the way to the left (panel position).
5) Turn the ignitions switch "off."
6) Hold down both air recirculation button and a/c button while turning the ignition switch "on." Nothing lights up initially, keep waiting. The orange air recirculation indicator on the button will start flashing.
7) Continue holding both buttons until the orange air recirculation indicator stops flashing, then let go.
To reactivate automatic a/c feature:
1) Turn vehicle off.
2) Turn fan knob off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob all the way to the right (defrost position).
5) Hold down both air recirculation button and a/c button while starting car.
6) Continue holding for 7 seconds until air recirculation button stops flashing.
7) After the 7 seconds described in step 6, the recirculation button will start to flash. Continue to hold the button for another 7 seconds. After this, the a/c light will turn to green and it's finished!
Former Moderator
Joined: Aug 2004
Posts: 14,729
Likes: 8
Originally Posted by candyteggy,Dec 5 2009, 02:52 AM
So winter hits, and i blast my heater in the morning towards the windsheild to defrost the ice over night... but when i do that AC is turned on. I know the trick to turn it off, but question is should I turn it off? because i might need it to defrost when it fogs up while driving. advices?
Trending Topics
Moderator
Joined: Aug 2008
Posts: 7,084
Likes: 70
From: North Portland, OR
Originally Posted by gospeedgo1,Dec 5 2009, 08:46 AM
from the FAQs up above...
How can I turn the AC off when using Defrost? (2002+)
• First, we should take a look at the reasoning behind this... The process of air conditioning removes moisture from the air. This dry air works better for removing fog from the windows. To assist with defrosting, Honda has "programmed" the HVAC system to engage the A/C whenever the defroster is turned on. The trouble is, you cannot turn it off.
To deactivate automatic a/c feature on a 2002+ S2000:
1) Turn the ignition switch "on," but dont start the car.
2) Turn fan speed off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob to all the way to the left (panel position).
5) Turn the ignitions switch "off."
6) Hold down both air recirculation button and a/c button while turning the ignition switch "on." Nothing lights up initially, keep waiting. The orange air recirculation indicator on the button will start flashing.
7) Continue holding both buttons until the orange air recirculation indicator stops flashing, then let go.
To reactivate automatic a/c feature:
1) Turn vehicle off.
2) Turn fan knob off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob all the way to the right (defrost position).
5) Hold down both air recirculation button and a/c button while starting car.
6) Continue holding for 7 seconds until air recirculation button stops flashing.
7) After the 7 seconds described in step 6, the recirculation button will start to flash. Continue to hold the button for another 7 seconds. After this, the a/c light will turn to green and it's finished!
How can I turn the AC off when using Defrost? (2002+)
• First, we should take a look at the reasoning behind this... The process of air conditioning removes moisture from the air. This dry air works better for removing fog from the windows. To assist with defrosting, Honda has "programmed" the HVAC system to engage the A/C whenever the defroster is turned on. The trouble is, you cannot turn it off.
To deactivate automatic a/c feature on a 2002+ S2000:
1) Turn the ignition switch "on," but dont start the car.
2) Turn fan speed off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob to all the way to the left (panel position).
5) Turn the ignitions switch "off."
6) Hold down both air recirculation button and a/c button while turning the ignition switch "on." Nothing lights up initially, keep waiting. The orange air recirculation indicator on the button will start flashing.
7) Continue holding both buttons until the orange air recirculation indicator stops flashing, then let go.
To reactivate automatic a/c feature:
1) Turn vehicle off.
2) Turn fan knob off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob all the way to the right (defrost position).
5) Hold down both air recirculation button and a/c button while starting car.
6) Continue holding for 7 seconds until air recirculation button stops flashing.
7) After the 7 seconds described in step 6, the recirculation button will start to flash. Continue to hold the button for another 7 seconds. After this, the a/c light will turn to green and it's finished!
the FAQ
