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another blower resister up in smoke

Old Jul 12, 2012 | 03:06 PM
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Default another blower resister up in smoke

i have change my resister 3 times and my connector twice. and last week i lost high speed and today in an exciting smoke cloud i lost it all. i dont have time to go to the boneyard for a few days, so my question is, can i just hook the blue/yellow feed to the black/ tan wire and get high speed without doing damage. has anyone done this?
 
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Old Jul 12, 2012 | 03:16 PM
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Go for it.

Dark blue with yellow tracer to Black with tan tracer. You're just bypassing the resistor, won't harm anything.

You may want to check the current draw on your blower motor if it's burning up resistors that often though.
 
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Old Jul 12, 2012 | 03:26 PM
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i was just thiking that myself. what should the draw be? ill test quick and post results
 
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Old Jul 12, 2012 | 03:42 PM
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i have 15.252Amp draw.
 
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Old Jul 12, 2012 | 04:05 PM
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Default older is better but!

I think the older placement of the resistor was better under the cowl it stays cooler and an all-around stronger design everyone with burned up resistors are usually the newer design inside the cab, only drawback is if it does burn up its PITA to replace under the cowl.
 
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Old Jul 12, 2012 | 05:27 PM
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15+ amp draw seems like alot. But, I could be wrong.
The resistor is only for start-up surge. Also, different start-up speeds.
I would thing the motor is bad or maybe a short.
 
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Old Jul 12, 2012 | 06:17 PM
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JB is right you should replace the blower motor.
 
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Old Jul 12, 2012 | 07:44 PM
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I don't see any specs on the blower motor in the FSM as to current draw.
 
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Old Jul 12, 2012 | 08:52 PM
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It probably has about a 40 amp fuse in the Power Distribution Center. If it draws more than about 17 amps of current with the fan on high speed, it may be a good idea to replace it. Some say 17 or 18 amps is too high of a current draw for any blower motor. I checked the current draw on my own blower motor just the other day, it was about 14 or 15 amps on high speed and it has a 40 amp Maxi-Fuse in the PDC.

Jimmy
 
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Old Jul 16, 2012 | 08:10 AM
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Originally Posted by 01SilverCC
It probably has about a 40 amp fuse in the Power Distribution Center. If it draws more than about 17 amps of current with the fan on high speed, it may be a good idea to replace it. Some say 17 or 18 amps is too high of a current draw for any blower motor. I checked the current draw on my own blower motor just the other day, it was about 14 or 15 amps on high speed and it has a 40 amp Maxi-Fuse in the PDC.

Jimmy
Mine is drawing a bit over 14 amps on high and yesterday the resistor smoked for the second time in 2 years. The fan motor seems fine. Does anyone know what the resistance of the motor or resistor pack legs should be?
 

Last edited by crayfish; Jul 16, 2012 at 08:25 AM. Reason: updated
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