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#1
06-05-2006, 10:49 PM
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Auxillary Fans
The auxillary cooling fans were working fine two weeks ago when I inspected the A/C at the beginning of the season. The fans stopped working this weekend and I found a blown fuse. Replaced the fuse and ran the A/C only to blow the fuse again when the temperature reached the point to start the fans.
The fans spin freely by hand. Any idea what could be tripping the fuse?
__________________
2001 E320 1991 350SD 265,000 - SOLD 2000 VW Beetle 1.8Turbo - restored 1997 E320 - SOLD 1988 190E - SOLD 1969 Mustang - SOLD 
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#2
06-05-2006, 10:54 PM
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Unplug the fan, the cable goes down along the support to a connector, then drive the car and see if it blows a fuse. Or bypass across the thermo switch if you know which one it is.
If the fuse remains OK then most likely you have a shorted fan, the brushes are probably worn down and touching ground inside the motor. This is a fairly common problem with old fans.
__________________
'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!
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#3
06-05-2006, 11:10 PM
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Is it possible to unplug only one fan to isolate which of the two fans may be bad or are they wired together in a series? Do you know where the plug in connector is located?
__________________
2001 E320 1991 350SD 265,000 - SOLD 2000 VW Beetle 1.8Turbo - restored 1997 E320 - SOLD 1988 190E - SOLD 1969 Mustang - SOLD
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