BenzWorld Junior Member
Date registered: Apr 2008
Vehicle: 97 E320
Location: Mobile, Al
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
This was a PM to OHlord
I'm writing you today, because it was suggested that I speak with you regarding my 97' W210. My name is Robert Stewart and I have a problem with my AC blower not turning off.
The Fan speed will not respond to the push button decrease in the speed of the fans ( it is constant speed), however the compressor will turn off if you decrease the button to what would be the off position. The temperature controls work fine. No other problems with the control box, but the fans stay on even with the car off and the key out. This drains a battery really quickly!!!!!!
The car has no other problems, but this (right now).
What have I done to try and fix it?
It has been suggested that the blower relay is possibly bad. This sounds logical.
I did replace the little silver blower relay approx 2 years ago when it initially died, but I have not had any other problems with the ac system since and it has blown ice cold and strong since then. I have also replaced the ac control box in the dash thinking that was a likely suspect being that the back light had burned out a month ago. It was not. I have also tried pulling a couple of fuses, but I have not had luck thus far and don't really know which to pull. This has left me relegated to disconnecting the battery each time I leave the car for an extended period of time or else suffer a dead battery.
So, I am one step away from heading to the dealer and I'm asking your for help with the matter. Could it be just a simple blower or Fan relay again?
Thanks for your time.
Response from OHLORD:
"Either a faulty relay or the fan regulator.
Did you give the relay a tap to see if it opens if it does then replace it.
autohausaz.com carries the relay
So I also googled this problem and came up with 3 other people that had the same issue and all were correctly fixed by getting a new blower fan relay. Thats why I posted the above "help, where can I get a new relay". I still don't know where another faulty relay could be other than located on the blower assembly itself. ?? Also I stopped into an AC shop and the guy said "blower relay under the glove box." SOOOOO, thats where I am.
Thanks for all help.
Last edited by stewmeistr; 09-24-2010 at 10:17 AM.
Reason: poor grammar