2000 Chevy Astro heater fan will not work on High position

2000 CHEVROLET ASTRO
125,000 MILES • 6 CYL • AWD • AUTOMATIC
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BISQUIT
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The heater fan will work on lo med and 3/4 position but will not work on the high position.
Feb 5, 2008 at 1:16 PM
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RASMATAZ
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Find the blower motor resistor assembly behind right side of dash remove it and test for power at the orange wire no power there replace the HVAC control assembly-power there replace the blower motor resistor assy. See below


https://www.2carpros.com/forum/automotive_pictures/12900_hvac_2.jpg

Feb 5, 2008 at 1:58 PM