Hello and welcome to our community! Is this your first visit?
Register
Page 1 of 3 123 LastLast
Results 1 to 10 of 24
  1. #1
    TDF Member
    Join Date
    Jan 2013
    Posts
    77
    Likes (Given)
    19
    Likes (Received)
    29

    Solenoid stuck open, Has it ever happened?

    Hi all,

    I started my Mod 1 yesterday and one of the subjects that we have covered is solenoid stuck open.

    Has anyone ever experienced this as i am interested to hear what caused it, to me it seemed there is a lot going on that should stop it form happening.

  2. #2
    Hard Astern Nitnab Nhoj's Avatar
    Join Date
    Dec 2012
    Location
    Twickenham
    Posts
    1,552
    Likes (Given)
    179
    Likes (Received)
    960
    Yes. For me it was a low battery during an intensive week's diving. I still got the display but had to drive it manually, turning the O2 on and off as I went.
    It's nice to be nice and it's nice to use punctuation to add comprehension to a communication.

  3. #3
    feckface von clownstick BTS's Avatar
    Join Date
    Dec 2012
    Location
    Torbaydos
    Posts
    10,000
    Likes (Given)
    5921
    Likes (Received)
    5574
    Other than power outage, see the bit numbered 7, this is an iron core if you get a drop of water in there, say through the bit on the head where the O2 hose connects when discounecting the hose from a wet post dive RB, it will rust over time, if it rusts or otherwise gets gunked it will jam.



  4. #4
    Old but keen Mark Chase's Avatar
    Join Date
    Dec 2012
    Location
    Kent UK
    Posts
    3,986
    Likes (Given)
    852
    Likes (Received)
    2538
    Common problem on Megs in the 2004 -2005 modle.

    Hapened a few times to a couple of Meg divers on our boat They even put a QD on the solinoid feed to avoid the issue.

    I had hand set failure on a Hammer Head which resulted in much the same thing. Solinoid just kept fireing in 02 which was a problem at 70 odd M

    ATB

    Mark

  5. #5
    Established TDF Member DiverMike's Avatar
    Join Date
    Dec 2012
    Location
    Cheltenham, Glos.
    Posts
    995
    Likes (Given)
    264
    Likes (Received)
    253
    Yes. On my mod 1. It was a bit of crap in the solenoid. When I sent my head in for a service my solenoid was sticking - I was unaware of it but it failed checks and was replaced. It had started to corrode inside.
    There is a lot you can do to prevent it happening (like blowing gas through your o2 hose before connecting it to the solenoid, and regular servicing but it can happen, it does happen and its worth being able to resolve it in water.

  6. #6
    Established TDF Member
    Join Date
    Dec 2012
    Location
    Milton Keynes
    Posts
    1,222
    Likes (Given)
    183
    Likes (Received)
    520
    It happened to my mate on his JJ

    Graham.

  7. #7
    mods been messing David's Avatar
    Join Date
    Dec 2012
    Location
    sussex
    Posts
    397
    Likes (Given)
    185
    Likes (Received)
    119
    ccr are just waiting for an excuse to kill you. That said the driver still seems to be the bigest problem :-)

  8. #8
    Red Hot Totty ;) Hot Totty's Avatar
    Join Date
    Dec 2012
    Location
    Portland ;)
    Posts
    3,912
    Likes (Given)
    1681
    Likes (Received)
    1646
    Not yet, but I understand its generally crap or corrosion that's likely to stick it open.
    www.wapsac.co.uk
    Apparently becoming a grandad

  9. #9
    Old but keen Mark Chase's Avatar
    Join Date
    Dec 2012
    Location
    Kent UK
    Posts
    3,986
    Likes (Given)
    852
    Likes (Received)
    2538
    Quote Originally Posted by David View Post
    ccr are just waiting for an excuse to kill you. That said the driver still seems to be the bigest problem :-)

    But to be fair a stuck open solinoid is hardly any drama. Just isolate and flush.

    You could bailout to OC or just run the unit by cracking open the 02 feed every now and again to get the PP02 back up.

    I had the equivelent of a half dozon solinoid failures on my HH on one dive to 70 odd m.

    It spiked the PP02 big time every time it failed but i just flushed it isolated and swam back to the shot with the 02 switched off.

    I did 2.5hours deco on that dive with the solinoid jamed and it wasent realy a problem just cracking the 02 open when the PP02 droped a bit. One of the big advantages of inverted CCR tanks.

  10. #10
    Skipper/Charter boat Bobanderson's Avatar
    Join Date
    Dec 2012
    Location
    Scapa
    Posts
    283
    Likes (Given)
    39
    Likes (Received)
    257
    I had it on a Inspo.

    TBF it was my fault. If you don't turn the O2 off before you disconnect the O2 feed to the head, the pressure can dislodge the gauze filter in the fitting. Fluff got it and stopped the valve shutting.

    To stop it happening

    Always shut and purge O2 before removing connector to head
    Check you have a gauze inline
    Blow through O2 line before connecting
    Don't bit a muppet.

    Having implemented all of the above, things are going just fine. The bit of fluff that held the solenoid open was tiny.


 
Page 1 of 3 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •