A/C fan is on and off time to time
Thread Starter
Newbie
Joined: Jun 2010
Posts: 11
Likes: 0
E 420
A/C fan is on and off time to time
Hi, All
I have a 94' E420. The A/C fan is on and off time to time. I checked the blower and blower regulator. They are fine. I also checked climate control unit. It is fine also. Is there a sensor switch in between? Or what can be wrong? I need help. Thanks
I have a 94' E420. The A/C fan is on and off time to time. I checked the blower and blower regulator. They are fine. I also checked climate control unit. It is fine also. Is there a sensor switch in between? Or what can be wrong? I need help. Thanks
Member
Joined: Mar 2010
Posts: 215
Likes: 0
1994 E220 Coupe
What you say the AC fan, do you mean the one in front of the car? If so, this is only meant to come on when needed, which is either when the coolant temperature is too high, or when the AC is on, and the pressure is too high
Member
Joined: Mar 2008
Posts: 201
Likes: 0
1992 Mercedes-Benz 500E
Replace the fuse, its probably cracked, can't tell till you try to take it out. Its a 30A strip fuse in a little plastic box right infront of the main fuse box. Need a phillips head screwdriver to replace it.
Thread Starter
Newbie
Joined: Jun 2010
Posts: 11
Likes: 0
E 420
Quicksilver500,
You are absolutely genius. I found the fuse, there is a crack.
I jumped with a wire. The fan turns. The type of the fuse is not that common to me. Where can I get a replacement, Any auto store? Thanks for your help.
You are absolutely genius. I found the fuse, there is a crack.
I jumped with a wire. The fan turns. The type of the fuse is not that common to me. Where can I get a replacement, Any auto store? Thanks for your help.
Member
Joined: Mar 2008
Posts: 201
Likes: 0
1992 Mercedes-Benz 500E
I just go to the dealer they will usually do fuses for free and you have done half the work for them. Strip fuses are about 1930's tech so most autoparts stores don't have them.
Don't sweat it, easy fix, I have owned 2 300E's, 2 500E's, and a coupe so you learn little things after that many w124s haha. Believe me, took a while to figure it out the first time, and I think some old guy probably told me they crack and you can't tell till you take them out.
Don't sweat it, easy fix, I have owned 2 300E's, 2 500E's, and a coupe so you learn little things after that many w124s haha. Believe me, took a while to figure it out the first time, and I think some old guy probably told me they crack and you can't tell till you take them out.
