Mesa Walkabout Factory Fan Fix?

Discussion in 'Amps and Cabs [BG]' started by BluesDawg, Jun 22, 2008.

  1. BluesDawg


    Jun 15, 2006
    Atlanta, GA
    FYI for those of you who have Walkabouts with loud fans:

    My WA is 6 or 7 years old and hasn't been updated for a couple of years. Even though it is out of warranty, I decided to take it into an authorized Mesa dealer for the more recent updates (passive/active switch, effects loop bypass switch, etc). I didn't even mention the fan, but when I got it back, I noticed a reference to "fan upgrade" on the service bill.

    When I got home and fired it up, the fan was much quieter than it had been, in fact hardly audible at all.

    By the way, even though it was out of warranty, Mesa did not charge for the parts. The total bill was just over $100, which also included fixing a loose connection which had been causing the amp to cut out.

    Walkabout owners who are bothered by the fan noise may want to check this out (especially if your WA is still under warranty).
  2. RickenBoogie


    Jul 22, 2007
    Dallas, TX
    Right on. I like a company that stands behind their gear.
  3. Brad Hanback

    Brad Hanback Supporting Member

    Dec 16, 2007
    North Alabama
    I sent my head back to Mesa and they did the same thing for me. I also recommend the fan upgrade. I was blown away with their service.
  4. ha ha ha....
    murphy and BadExample like this.
  5. antoniolopez90


    Mar 6, 2011
    Hi guys just purchased a red face walkabout, I doubt it is still under warranty. Was the bill 100 bucks for labor? I assume if out of warranty Mesa will cover parts but not labor?

    Just want to clarify as I plan on gettin factory updates as soon as my WA arrives.:hyper:

    If anybody has time to list them it would be awesome.. i spent 30 to 60 minutes looking through the megathreads and just want to see if I am aware of them all.:help:

  6. onegunguitar


    Jul 1, 2010
    I just put a SilenX Ixtrema Pro Series (80mm x 25mm 14dBA fan 32cfm) in my Walkabout. Works great. It was $9.99:D:D
  7. BassmanPaul

    BassmanPaul Inactive

    I hope you made sure that the CFM rating was the same or higher than the old fan.
  8. onegunguitar


    Jul 1, 2010
    From what I've read,the original pushes 36.5 cfm. The fan I bought is 32 cfm....My guess is it'll be ok.
  9. BassmanPaul

    BassmanPaul Inactive

    I would not be happy with that change. You very well might run into overheating problems if you push the amp into a low impedance.
  10. georgestrings

    georgestrings Inactive

    Nov 5, 2005

    Yeah, my interactions with Mesa have all been positive...

    - georgestrings
  11. georgestrings

    georgestrings Inactive

    Nov 5, 2005

    Agreed - I would not have downgraded that fan just to save a few bucks and to make things quieter... I'm all about reliability and durability, and diminishing cooling air flow does not help either at all...

    - georgestrings
  12. lomo

    lomo passionate hack Supporting Member

    Apr 15, 2006
    Unless you are flogging it below 4 Ohms or operating it in extreme heat you'll be fine. Happy thumpin'!
  13. HeyyyyyJoe

    HeyyyyyJoe Yahtzeeee

    Nov 13, 2007
    Brooklyn, NY
    So how does these factory fixes work? You call Mesa's main number and ask them to update your walkabout?
  14. onegunguitar


    Jul 1, 2010
    I have no need to run below 4ohms anyways. I actually sent an email to Mesa to see what their thoughts are on it.
  15. BassmanPaul

    BassmanPaul Inactive


    Don't keep us hangin' on a thread! :D
  16. onegunguitar


    Jul 1, 2010
    I just emailed them today.....when I get a response I'll be sure to post their answer.:D
  17. Matt Dean

    Matt Dean Supporting Member

    Jan 2, 2007
    SF (North) Bay Area
    I talked with Mesa about this very matter about two weeks ago and was told that there is no factory fix.
  18. onegunguitar


    Jul 1, 2010
    Well,I had practice tonight with the new fan in place. Running the gain at about 1 o'clock and the master around 10-11 o'clock pushing through a single 4 ohm /15 inch speaker I had no problems with heat at all. The amp was on for about 2 hours straight. It felt like it did with the stock fan. In between songs I had to make sure it was still working it was that quiet.:)
  19. onegunguitar


    Jul 1, 2010
    Here' the reply I received from Mesa about using a 32 cfm fan compared to the factory fan.


    Here is what our tech had to say:

    I believe this will be OK, as long as there is plenty of ventilation around the head itself. I would remind him though that this will void the warranty if there does happen to be any issues.


  20. Alfredo D Dark

    Alfredo D Dark

    Apr 22, 2013
    Hey fellas,
    the fan mod involves putting a resistor in series with the fan.
    This REDUCES fan speed and CFM. So the guy with the $9.99 fan wins. :hyper:

    Special double secret info: the series resistor also fixes a problem with excessive relay turn on time. Sometimes excessive = infinity. The voltage to the relay is rather low to start with (5 volt supply, 6 volt relay), and the current demand of the fan makes the situation worse, causing a 5 volt regulator to not put out like it should.
    The series resistor fixes the problem just fine, and I assume the MB techs tested the amps with the reduced CFM at max power and saw no problems.
    ialma likes this.