Hello, maybe something wrong with the speed switch? The high blower speed doesn't use a resistor. High speed fuse, hvac 30 amp, underhood electrical center.
The blower relay has to be energized for the high speed. The feed for the control side of the relay, comes the hvac controller on the dash, hi speed selection. That relay is not energized for the lower speeds.
Monday, December 28th, 2020 AT 10:58 AM
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