If I'm not mistaken, when the blower motor is on any speed other than high, the current flows through some resistors to slow the motor speed down. When on high, the full current is going through the motor windings. Am I correct? The increased heat and speed could cause the bearings to get tight and increase the amp draw above the fuses current rating.
One thing you NEVER want to do to try and correct a motor blowing its fuses is to up-size the fuses above the motor's current rating. That's a good way to melt wires and start a fire!
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John
"There are no stupid questions, but there are a LOT of inquisitive idiots!"
Last edited by dm_fan; 11-11-2009 at 03:07 PM.
Reason: typo
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