Aux Fan issue

[bdelmonico]

92 500 sl. The aux fan comes on as soon as you start the car along with the air conditioning. If you turn the air off the fans will go off. Anyone have the same or similar issue if so what is the necessary repair? Any help would be appreciated. Thanks

[tecqboy]

Press the "EC" Button?

[dorian]

as fare as i know the fans are supposed to come on with the air conditioner turned on

[jplinville]

Originally Posted by dorian

as fare as i know the fans are supposed to come on with the air conditioner turned on

That's how it was designed

[bdelmonico]

shows you how much i drive the car? Stupid me! Thank you all.

[rugby2]

gee I thought it came on when the car overheats in traffic. mad it didn't come on quicker. thought the switch was broke. (had a friend hook his to a switch on the dash, so could turn it on when temp gauge got high.

[bobterry99]

The fans switch on at low speed when the A/C is turned-on and the outside temperature is 86 degrees or warmer. They switch on at high speed if the refrigerant pressure or engine coolant temperature are high. So, when you first start your car on a cool day with the A/C on the fans should be off.

[bdelmonico]

Originally Posted by bobterry99

The fans switch on at low speed when the A/C is turned-on and the outside temperature is 86 degrees or warmer. They switch on at high speed if the refrigerant pressure or engine coolant temperature are high. So, when you first start your car on a cool day with the A/C on the fans should be off.

I live out in the mohave Desert. Right now the temp in the garage is right @100 degrees. And ya, the fan comes on @ low speed. So..... I guess it is doing what it is suppose to do. I thought the dam thing was broken. I really appreciate all the posts! Thanks every one.

[Philly19131]

I'm having the opposite problem. The fans won't come on whether the AC is on or not. Its causing the fan to overheat. Please help! Thanks.