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Shearwater transmitter failure

Discussion in 'Shearwater Research' started by CWK, Nov 28, 2019.

  1. CWK

    CWK Manta Ray

    # of Dives: 1,000 - 2,499
    Location: Probably on a LOB somewhere
    1,006
    623
    113
    My Shearwater transmitter failed during my last trip. Com failure showed on both my Perdix and Teric for the entire trip of 30+ dives. From first failure, com was never re-established. Based on my superficial visual inspection of the transmitter, I think there was a part (retaining screw?) that may have rusted through. Has anyone else experienced anything like this?
     
  2. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    3,990
    4,900
    113
    When you opened it up, was there water inside?
    Did you change the battery before the trip?
    Even if a screw "rusted through" that's still outside the o-ring seal and shouldn't even matter. If a screw rusted through, perhaps it's been a long time since the battery was replaced?
     
  3. rabe

    rabe Manta Ray

    # of Dives: 200 - 499
    Location: Brisbane
    541
    261
    63
    I have a similar problem. It has happened to me 3 or 4 times now.
    Sometimes my transmitter simply stops working, and then it resolves itself.
    It's not a battery problem or an issue of distance between the transmitter and the Perdix: it seems to be really random if you ask me.
    Last time was a couple of weeks ago: I've tried it at home while I was packing and it was working perfectly. Next day it wasn't working.
    Than the week after was ok again.

    My transmitter is in pristine condition: I've also taken it for a check, but apparently everything it's ok.
    Shearwater troubleshoot guidelines tell to check the gold-connections where the battery lays, but mine are perfect.


    It has never happened while diving though (and it's not a problem because I always dive with a redundant SPG).
     
  4. CWK

    CWK Manta Ray

    # of Dives: 1,000 - 2,499
    Location: Probably on a LOB somewhere
    1,006
    623
    113
    I'm not talking about an intermittent com failure. I'm talking about a complete failure. Once the failure happened, coms was never re-established again for over 30 dives.
     
  5. CWK

    CWK Manta Ray

    # of Dives: 1,000 - 2,499
    Location: Probably on a LOB somewhere
    1,006
    623
    113
    1. The battery was replaced to no effect.
    2. I had the transmitter connected to a 6 inch HP hose. When I disconnected the Tx from the hose, some brownish water fell out.
     
  6. guruboy

    guruboy Divemaster ScubaBoard Supporter

    4,946
    785
    113
    Sounds like you flooded your transmitter.
     
    eleniel likes this.
  7. CWK

    CWK Manta Ray

    # of Dives: 1,000 - 2,499
    Location: Probably on a LOB somewhere
    1,006
    623
    113
  8. CWK

    CWK Manta Ray

    # of Dives: 1,000 - 2,499
    Location: Probably on a LOB somewhere
    1,006
    623
    113
    I think there was something in the circular hole that rusted through.
     
  9. CWK

    CWK Manta Ray

    # of Dives: 1,000 - 2,499
    Location: Probably on a LOB somewhere
    1,006
    623
    113
    I suspect it was flooded. But did it flood because of a parts failure?
     
  10. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    3,990
    4,900
    113
    Well, at this point, no harm in unscrewing the battery cap. If there's water inside the case, the transmitter is toast. That is a mounting screw hole that shows in your picture. I wasn't aware that that screw hole that is in your picture communicates with the inside of the case, but I haven't taken that type apart.
    If there was just water inside your HP hose, you might consider having your first stage looked at as well. But your transmitter may still be toast. Sorry!
     

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