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#1
05-12-2004, 02:09 PM
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heater blower fuse
the fuse for the heater fan in my 560sl keeps blowing. i havn't done anything yet except keep replacing the fuse......any suggestions ? thanks much
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#3
05-13-2004, 09:09 AM
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Blower Fuse
I would start by disconnecting the power plug at the blower compartment to disconnect the blower motor and resistor from the circuit. Put in a new fuse. If the fuse doesn't blow, you've now isolated your problem to the blower motor itself, the motor wiring harness and the resistor plug.
If you need a new blower motor, I have one on ebay. (The blower motor compartment is under the hood, centered in front of the firewall. Facing the windshield from the front bumper, look at the front left hand corner of the blower comparment and you'll see the power plug I'm talking about.)
__________________
Jim
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#4
05-13-2004, 09:56 AM
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heater motor fuse
thanks for the info, i'll try disconnecting the blower motor first. i've read that you can up the amps for that fuse without causing any problems???? anyone know anything about that?
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#5
06-05-2004, 02:51 PM
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heater motor fuse
it is the right fuse size...and i did un-plug the heater blower motor as suggested, but with no success. the fuse still blows out. thanks up front for any help!!!!!
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#6
06-06-2004, 04:42 PM
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What do you do to make it blow? Does it blow on all functions of the climate control? Or does it blow when you put it in?
__________________
Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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#7
06-07-2004, 08:11 AM
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heater motor fuse
it blows sometime when i start the car, other times at random. i've tried to narrow it down by turning on the heat, low fan, high fan, air, there seems to be no rhyme or reason to when it blows
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#8
06-07-2004, 08:32 AM
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Which fuse is blowing, 6 or 7?
You do know that 6 is 16 amps, and 7 is 8 amps? Just to clarify - does it ever blow with with everything off?
__________________
Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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#9
06-07-2004, 09:51 AM
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it's the #7, and yes sometimes it blows with every thing off, except the fan is always on, as far as i know
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#10
06-07-2004, 10:31 AM
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#7 does not power the fan, #6 does.
#7 supplies power to the pushbutton unit, and to the ACC control unit. My guess is that one of these has a short. The power wires from the fuse to both are black/red. Find out which one is grounding as a starting point. If the short is beyond one of these units, you really need the ETM to do further testing.
__________________
Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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#11
06-07-2004, 10:52 AM
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thanks!!!
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