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Blower motor

Peanut18Peanut18 MNPosts: 3
edited October 2018 in Chevrolet
Do my ignitions switch have anything to do with my blower motor not coming on. Blower works I had it tested fuse not blown but the blower won't come on...Or what could it be?


  • Peanut18Peanut18 MNPosts: 3
    It's a98 blazer
  • imidazol97imidazol97 Crossroads of America I70 & I75 Posts: 22,963
    edited October 2018
    How do you know it works?

    If you connected power and a ground to the lines for the blower, check the line to the blower and see if it's giving 12 volts?

    Many blowers get picky about contacts because of wear on the commutators. Sometimes kicking a blower motor with the toe of your shoe with power ON will vibrate it and make it srart. Sometimes aging blower motors tease fuses to death indicating it;s replacement time.

    Is it a manual HVAC system? If so, I see three power leads.
    RDO/BATT #19 10 amp
    HVAC #21 10 amp

    and under the hood a bused
    30 amp in the Underhood Bused Electrical Center UBEC
    Check your owner manual for location help.

    2015 Cruze 2LT, 2014 Malibu 2LT, 2008 Cobalt 2LT

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