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  1. #1
    Join Date
    Aug 2017
    Location
    Marcellus, NY
    Posts
    98

    Default cabin blower motor

    Hello all, 2003 XC70, lately the cabin blower has been erratic, fan is on, then off then on, up and down. Last night driving home blower wouldn't come on at all. this morning it started (up and down, up and down) finally came on and I left it on all the way to work. I figured either I need a new blower or maybe the (rotary) switch. Or could it be the condenser on the blower? Any thoughts from the crowd? Thank You! Dave

  2. #2
    Join Date
    Sep 2002
    Location
    Belgium
    Posts
    2,394

    Default

    The Fan Control Module (4/31), a darlington transister unit (I believe sitting near the fan 6/28) is known to fail.
    Attached Files Attached Files
    144 GL (1974)--->244 GL (1982)--->940 GLE 2.3i (1992)--->XC70 2.5T (2004)--->XC90 T5 (2018)

  3. #3
    Join Date
    Feb 2010
    Location
    Virginia Beach
    Posts
    3,853

    Default

    I ended up replacing blower motors in two P2 cars at about the 12 year, 150,000 mile point.

    Get a good quality unit. Behr works well. This one:

    https://www.fcpeuro.com/Volvo-parts/...=5&b=6&d=59&v=

    I didnít replace the transistors
    Current Fleet:
    2016 Tundra Crewmax 4WD 1794
    2005 MB S600 (100K, Michelin AS3+, M1 0W40)
    2002 V70-XC (238K, Castrol Edge 0W40)
    2002 V70-T5 (195K, IPD bars, Bilsteins)
    2001 V70-T5 (76K)
    1932 Packard Sedan (straight 8, dual sidemounts, original paint and interior, Shell Rotella 15W40)

  4. #4
    Join Date
    Aug 2017
    Location
    Marcellus, NY
    Posts
    98

    Default

    so is the fan control module in the fan enclosure or is it up in the control box under the radio? Dave

  5. #5
    Join Date
    Sep 2002
    Location
    Belgium
    Posts
    2,394

    Default

    It's located at the fan.
    Of course the rotary switch could fail also, but I haven't read that happening.
    Attached Thumbnails Attached Thumbnails Fan Conrtol Module.jpg  
    144 GL (1974)--->244 GL (1982)--->940 GLE 2.3i (1992)--->XC70 2.5T (2004)--->XC90 T5 (2018)

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