CO2 still coming out when solenoid is off
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Old 07-24-2014, 12:21 AM   #1
gus6464
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CO2 still coming out when solenoid is off


I just noticed today when installing a bubble counter that CO2 still comes out the needle valve even when the solenoid is supposed to be off. When I plug it in I can hear the clicking noise but it's not stopping from dumping CO2. The solenoid is a Burkert from aquariumplants. How can I troubleshoot these things? I just got it about 2 weeks ago.
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Old 07-24-2014, 12:24 AM   #2
Solcielo lawrencia
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Is it coming out forever?
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Old 07-24-2014, 12:29 AM   #3
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Originally Posted by Solcielo lawrencia View Post
Is it coming out forever?
It seems like it. I opened the needle valve all the way for a good 2 mins and bunch of CO2 was coming out with no end in sight.
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Old 07-24-2014, 12:35 AM   #4
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It's just the pressure dropping. The higher the WP, the longer it will take for it to reach equilibrium.
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Old 07-24-2014, 12:37 AM   #5
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Quote:
Originally Posted by Solcielo lawrencia View Post
It's just the pressure dropping. The higher the WP, the longer it will take for it to reach equilibrium.
Ahh ok but is there a way I can test this to make sure?
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Old 07-24-2014, 12:40 AM   #6
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Lower the WP. If the stops sooner, then that would tell you. What's the WP right now?
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Old 07-24-2014, 12:47 AM   #7
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Originally Posted by Solcielo lawrencia View Post
Lower the WP. If the stops sooner, then that would tell you. What's the WP right now?
Was at 20, I just lowered it to 10.
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Old 07-24-2014, 01:16 AM   #8
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If it doesn't stop eventually, it's probably just dirty (small spec of something keeping it from closing all the way.) You may be able to just blow it out or you may need to disassemble it if the flow doesn't stop. Testing is faster if you remove the tubing from the from being pressurized.
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Old 07-24-2014, 03:35 AM   #9
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had this happen to my solenoid, just ended up replacing it as even after I took it appart and attempted to clean it, it still would not stop leaking co2 all night.
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Old 07-24-2014, 05:43 AM   #10
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The solenoid has been off for almost 5 hours and co2 is still coming out. This sucks, this thing was not cheap.
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Old 07-24-2014, 06:53 AM   #11
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Then the solenoid is not closing completely. You'll have to remove the NV if it's after the solenoid and open the WP high and let it blow through to clear any debris.
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Old 07-24-2014, 07:04 AM   #12
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- unplug the solenoid
- open up the needle valve
- increase your WP to ~50 psi (or you max < 50)
- plug / unplug the solenoid several times

If you have debris stuck in the solenoid, the above should blow it out.

If not, call CS or just exchange.

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Old 07-24-2014, 08:58 AM   #13
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I'd actually worry that the debris would blow into the NV which is why I suggested removing it first.
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Old 07-24-2014, 11:05 AM   #14
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Get the proper torx bit, take it apart and clean it out.
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Old 07-26-2014, 08:41 PM   #15
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Ok so I completely took the regulator apart. This time I turned on the canister after connecting every fitting to make sure all gunk was expelled all the way to the end of the needle valve. Tested and it works! Now the CO2 stops within 30 seconds of turning off the solenoid. Thanks for the help.
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