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Old 06-05-2010, 01:20 PM   #16
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If you manually plunge the relay down, what happens? What is the volt reading at the coil? If you unhook the pump feeds from the relay, will it still buzz?
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Old 06-05-2010, 01:25 PM   #17
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Originally Posted by fpeftw View Post
If you manually plunge the relay down, what happens? What is the volt reading at the coil? If you unhook the pump feeds from the relay, will it still buzz?
from the part number given previously, this is a closed relay. No means to manually activate it.

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Old 06-06-2010, 07:39 PM   #18
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Originally Posted by roger2386 View Post
Specifically it is an OMRON 24 volt DC/240 voltAC relay G7L2a TUBJ CB!
This is in a control box for may irrigation system. It has never buzzed before and the pump has always started.
Usually irrigation controllers are 24 vac not 24 volt dc, or at least I never saw a dc one.
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Old 06-06-2010, 07:43 PM   #19
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Usually irrigation controllers are 24 vac not 24 volt dc, or at least I never saw a dc one.
I would tend to agree and running ac current through an dc relay would do something such as what is happening BUT op says it has worked before with the current relay.
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Old 06-10-2010, 12:36 PM   #20
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From your most appreciated relpies, I find that my description of the problem needs clarified. I have a 2hp Goulds pump. The irrigations system has a box on the power pole that controls the pump. It has a relay. This relay is buzzing, but pump is not getting powered up. Secondly the motor on the ground has a set of points which looked burnt. I took them off and the contacts did not look good. I filed the points and am going to put them back on and retry the system. I have called a repair outfit and when I tried to buy a new set of points at a local outlet, they told me that the repair guy had been in and bought a set of points. WAhen I checked with the repair guy, he said he di NOT buy a set of points for MY pump, but did have one of his guys get a set of points for another customer. While my points looked poor, I can not see why they would not make the pump start if every thing else is working properly. whadayathink?
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Old 06-10-2010, 12:39 PM   #21
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Originally Posted by fpeftw View Post
If you manually plunge the relay down, what happens? What is the volt reading at the coil? If you unhook the pump feeds from the relay, will it still buzz?
I have not idea. I don't work on anything, especially 220 with the power on, I have just enough knowledge to get myself in deep do do. The pump repair guy I called will hopefully check this out. Thanks so much for all your respnses.
Roger
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