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  #1  
Old 03-09-2013, 01:50 AM
Fine Gardens Landscaping Fine Gardens Landscaping is offline
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Faulty solenoid?

Sprinklers pop up only partially when turned on via the clock. They pop up fully when turned on via the valve bleed screw. I'm guessing bad solenoid but I want to prepare for other possibilities. Is there other things that could cause this issue?

Thanks in advance
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Old 03-09-2013, 07:40 AM
txirrigation txirrigation is offline
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Ohm the solenoid, and check for voltage.
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Old 03-09-2013, 09:08 AM
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Sprinkus Sprinkus is offline
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Sounds like the diaphragm or a clogged solenoid discharge port.
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Old 03-09-2013, 04:41 PM
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Mike Leary Mike Leary is online now
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Pull the field wires at the valve and check for voltage, I have a feeling it's either a bad connection at the clock or a shorted field wire.
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Old 03-09-2013, 04:50 PM
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Wet_Boots Wet_Boots is online now
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the smart money is on the blinker fluid
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Old 03-09-2013, 05:11 PM
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1idejim 1idejim is online now
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E/R=I

Other than that it's prolly hydraulic.
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Old 03-09-2013, 06:56 PM
muddywater muddywater is offline
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Like others I would want to know the output of voltage at the clock and at the valve. If it is 24+ at both ends that would say it is not an electrical output problem. If the solenoid doesn't ohm 24+, it might be a bad diaphram. It seems to me solenoids ohm out differently. Rainbirds tend to be 50ish and Hunters 20ish. If it ohmed out ok, I would replace diaphram.

If it is a hydraulic system, your gonna need to contact Jim!
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Old 03-09-2013, 07:00 PM
muddywater muddywater is offline
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Quote:
Originally Posted by 1idejim View Post
E/R=I

Other than that it's prolly hydraulic.
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What does E/R=I mean for the ignorant on this forum(me)?
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Old 03-09-2013, 07:01 PM
muddywater muddywater is offline
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Quote:
Originally Posted by Sprinkus View Post
Sounds like the diaphragm or a clogged solenoid discharge port.
Also, good this is what irrigation flags second life are for.
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Old 03-09-2013, 07:51 PM
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Quote:
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What does E/R=I mean for the ignorant on this forum(me)?
baby steps Ohm's Law
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