|
|
|
#1
|
|||
|
|||
auxiliary fan's fuse keeping burning
I have a 91 300ce mercedes benz and the fuse for the auxiliary keep burning whenever i turn on the air conditioning. As i monitor engine, I saw that there is a coil next to the dryer keep getting really hot. Once that coil got so hot then the fuse is blown. Please give me some advice. Thanks a lot
|
#2
|
|||
|
|||
Fuse D or fuse 7 ???
|
#3
|
|||
|
|||
Check the fan motor!
As motors age and lubrication dries out, they draw more and more current. Michael
__________________
Michael McGuire 83 300d 01 vw A4 TDI 66 Chevy Corsa 68 GMC V6 w/oD 86 300E |
#4
|
|||
|
|||
Quote:
|
#5
|
|||
|
|||
OK
That [ D] is low fan load circuit. Couple of easy test 1 . turn each fan by hand to see that they are both free. 2 .Check connections on each side of resistor, they burn and make a bad connection 3 . Take a jumper wire with an amp meter wired in series and jump from Bat+ to the terminal with 2 wires on it at resistor. This is fan draw and should not excced 25 A.. if it does , you have a bad fan motor .. if fine , Benz has upped fuse D to 25 A on double fan models. Lastly, there has been wire problems between the relay and resistor for low fan , so check any for burnt at the relay end too.. |
#6
|
|||
|
|||
Quote:
Can you please tell me where is the relay? Thanks |
#7
|
|||
|
|||
Box behind fuse compartment .. have to take 6 screws out and lift the top
Easiest if hood is full tilt. There are two [ high/low].. you want the one in slot 'B" |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Auxillary fan fuse keeps burning | yjamous | Tech Help | 5 | 05-21-2005 11:57 AM |
400E Auxiliary Fans | carman850 | Tech Help | 3 | 10-14-2001 09:04 PM |
350SD Auxiliary Radiator Fans | JimSmith | Diesel Discussion | 1 | 07-26-2001 03:49 PM |
Auxiliary fans running by themselves | PhilKwon | Tech Help | 7 | 01-16-2001 07:59 AM |
300CE Aux Cooling Fans | Kevin_300CE | Tech Help | 2 | 05-11-2000 07:44 AM |