SUMO regulator solenoid is stuck open - what do I do? - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 07-06-2010, 02:38 AM Thread Starter
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SUMO regulator solenoid is stuck open - what do I do?

Hi,

Just discovered my SUMO regulator solenoid stuck in the open position. Even when power disconnected.

Is it toast or might there be a fix?
In the meantime, can I just open/close the main cannister valvle to regulate co2, or would that damage the needle valve?

thanks,
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post #2 of 10 (permalink) Old 07-06-2010, 03:46 AM
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Step one, contact sumo. They are great, might be able to help.

yes, you can close the valve on the canister, it doesn't touch the needle valve... so no it won't damage it... Make sure you have a good check valve in place.

Dissassemble the valve to see if something is stuck in it. Sometimes a little silicone lubricant can help.
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post #3 of 10 (permalink) Old 07-06-2010, 04:04 AM
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Lots of solenoids have been breaking lately. Sumo is currently in the process of changing what brand solenoid they use. They are very helpful too, as over_stocked posted.

-Chris

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post #4 of 10 (permalink) Old 07-06-2010, 02:27 PM
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They are really, pretty easy to take apart. There is probably some gunk causing the plunger to stick. If it is a clippard, you can take the coil off with the big nut on the outside, then you remove the two screws(or is it four, can't remember) from the top of the valve.
You should then be able to pull the stem off, and you should be able to see the plunger and spring.
Of course, if you are not comfortable taking this apart, definitely contact sumo.
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post #5 of 10 (permalink) Old 07-06-2010, 02:40 PM
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Increase the output pressure to about 50 and blast air through it (take the needle valve off)


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post #6 of 10 (permalink) Old 07-06-2010, 03:58 PM
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i think that i read before about blasting it out like fsm said
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post #7 of 10 (permalink) Old 07-06-2010, 06:07 PM
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Rex Grigg has nice Instructions on clearing out a clippard solenoid, which are notorious for getting stuck, or leaking. Here:
http://www.bestaquariumregulator.com/CO2.html#soltip

Contacting Sumo is also a good idea, they have great customer service.


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post #8 of 10 (permalink) Old 07-06-2010, 06:25 PM
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SUMO regulator solenoid is stuck open - what do I do?

Reach out to Sumo. They're good guys and will be happy to help.


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post #9 of 10 (permalink) Old 07-06-2010, 11:03 PM Thread Starter
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Many thanks, I have contacted Sumo. Their reputation for excellent service is well deserved.

I the meantime I will have a look at air blasting! I guess locked on is better than locked off.
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post #10 of 10 (permalink) Old 07-06-2010, 11:07 PM Thread Starter
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re: clearing solenoid.

If solenoid is stuck open already and gas is flowing, is it "OK" to turn working pressure up (to 50sps) then, while working pressure is high and gas is blasting through bubble counter, unscrew the needle valve?
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