Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

two front radiators - both aircon?

X-UFO
 Share

Recommended Posts

X-UFO Member

X-UFO

Posted
Posted (edited)

Hi,

Just a quick question.

When I have the aircon switched on only one fan in the front arch comes on (passenger side, RHD UK).

Is that right or should both fans be on?

Is the other radiator on the other side in the arch for the cooling system or part of the aircon and should also run the fan

with the aircon?

Thanks for any help.

2001 996 Carrera2

Edited by X-UFO
Link to comment
Share on other sites
  • Admin
Loren Member

Loren

Posted
  • Admin
Posted

:welcome:

The fans have two speeds.

One that turns both on at low speed when the coolant temperature gets to certain temperature.

The second speed is high speed that turns on both whenever the AC is on and if the coolant temperature exceeds a preset level.

So, whenever one fan is on - both should be on.

If that is not the case check the fuses, swap the relays to confirm. If the problem still exists then you likely have a bad ballast resister

Details of all these have been discussed here in other thread so try a search.

  • Upvote 1
Link to comment
Share on other sites
X-UFO Member

X-UFO

Posted
  • Author
Posted
:welcome:

The fans have two speeds.

One that turns both on at low speed when the coolant temperature gets to certain temperature.

The second speed is high speed that turns on both whenever the AC is on and if the coolant temperature exceeds a preset level.

So, whenever one fan is on - both should be on.

If that is not the case check the fuses, swap the relays to confirm. If the problem still exists then you likely have a bad ballast resister

Details of all these have been discussed here in other thread so try a search.

Loren,

Thanks for the reply. After a good search, reading your reply and going out to the car and swapping relays, checking fuses and making sure it isn't working.

Going dark now, next step is to check the voltages before the series resistor and compare with the other side, I'll do that tomorrow. Maybe the resistor needs replacing.

Your reply really helped in guiding me and I much appreciate your reply - Cheers. :D

Ian

(in the rainy UK)

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.