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Old 05-15-2007, 07:30 PM
wbrian63 wbrian63 is offline
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Join Date: Aug 2006
Location: Houston, TX
Posts: 450
W140 A/C Blower Motor

92 300SE

I think my A/C blower motor is headed for the great beyond.

On high fan setting, it draws about 35A. Is that too high, or OK? Can't find anywhere on AllData, or in my other documentation that gives me a clue.

I replaced the speed control with one of those advertised here on the site. However, when the fan runs for a long time on high, I smell a "cooking resin" odor in the air.

The smell is not of burning wire, its coming from the resin used to pot all of the electronics in on the control. I've pulled the filter cover off and sniffed to compare.

The wires all look OK - none shows signs of being hot, nor do they get excessively hot to the touch when the fan is on max.

So - what's the story - what should max amp draw be??

Thanks
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