I purchased a used blower motor and when I plugged it in it took off on high without the switch being turned on or even the key in the ignition. I figured it was bad and the old one did the same thing ,,,full speed ahead. The only way to get it off is by pulling the high speed fuse. All of the advice I received said I had a bad resistor. Well today the $45 resistor arrived...I installed it and I still get the same thing. High speed only...and speeds 1-3 won't work with the high speed fuse pulled. Any more ideas? Could it be the 2 blue hella relays that are in there? Perhaps my actual switch has gone bad. Anyone ever hear of this happening?
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850 Blower Problem
Started by richraeder, Dec 05 2004 04:40 AM
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richraeder
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Posted 05 December 2004 - 04:40 AM
I purchased a used blower motor and when I plugged it in it took off on high without the switch being turned on or even the key in the ignition. I figured it was bad and the old one did the same thing ,,,full speed ahead. The only way to get it off is by pulling the high speed fuse. All of the advice I received said I had a bad resistor. Well today the $45 resistor arrived...I installed it and I still get the same thing. High speed only...and speeds 1-3 won't work with the high speed fuse pulled. Any more ideas? Could it be the 2 blue hella relays that are in there? Perhaps my actual switch has gone bad. Anyone ever hear of this happening?
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