Volvo S40 The S40 is Volvo's most affordable sedan with all the amenities of a luxury sports car.

S40 AC works sometimes HELP!

Thread Tools
 
Search this Thread
 
  #1  
Old 11-21-2015, 08:51 PM
Tyler Ruehl's Avatar
Junior Member
Thread Starter
Join Date: Oct 2015
Location: San Diego
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Question S40 AC works sometimes HELP!



I have an issue to were my air will only work if i have the blower set to 5, position to AUTO and I wait for "4" beeps of the key being turned to the "on" position before i start it.
Wont work if i wait for more than or less than 4 beeps or if I take it off of max blow speed.

Any reason why?
 
  #2  
Old 11-24-2015, 02:48 PM
pierremcalpine's Avatar
Senior Member
Join Date: Jun 2012
Location: Toronto, Canada
Posts: 676
Likes: 0
Received 2 Likes on 2 Posts
Default

bad climate control resistor maybe (the one located behind the glove compartment).
 
  #3  
Old 11-25-2015, 12:04 PM
Tyler Ruehl's Avatar
Junior Member
Thread Starter
Join Date: Oct 2015
Location: San Diego
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default

awesome, ill give that a shot!
 
  #4  
Old 11-25-2015, 01:42 PM
pierremcalpine's Avatar
Senior Member
Join Date: Jun 2012
Location: Toronto, Canada
Posts: 676
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by Tyler Ruehl
awesome, ill give that a shot!
The part itself is about $50 but apparently you can take it apart and simply replace the resistor inside. I have not tried but I'm told it's an easy/cheap job.
 
  #5  
Old 11-30-2015, 05:57 PM
Hudini's Avatar
Senior Member
Join Date: Oct 2007
Location: Shanghai, China
Posts: 2,840
Likes: 0
Received 16 Likes on 16 Posts
Default

It is easy with a few hand tools. I just ordered the OEM resistor from ebay:
1pcs Motorola MJ802 Transistor to 3 TO3 NPN 30A 100V 200W | eBay

Here is the heat sink with resistor:
Name:  s40resistor.jpg
Views: 52
Size:  3.7 KB
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
87roadwarrior
Volvo 240, 740 & 940
5
08-26-2015 10:26 PM
hunterw0026
Volvo S70
4
03-21-2011 09:49 AM
Deacon1971
Volvo V70
3
06-08-2010 12:06 AM
ronleroux
General Volvo Chat
2
06-05-2010 06:20 PM
850R Dave
Volvo 850
7
12-16-2009 09:41 AM



Quick Reply: S40 AC works sometimes HELP!



All times are GMT -5. The time now is 04:34 AM.