99 GMC Sierra Heater Blower

Settings 1 & 2 on my Heater Blower are dead but 3-5 still work. Has anyone experienced this problem? Is it a problem with the selector switch or a
problem with the blower itself? How difficult of a repair is this?
Thanks In Advance, -Mike
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It could be the switch or the blower resistor
Larry
Mike Bittel wrote:

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