You are not logged in.

Reply

Dear visitor, welcome to SPRINKLER TALK FORUM - You Got Questions, We've Got Answers. If this is your first visit here, please read the Help. It explains how this page works. You must be registered before you can use all the page's features. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.

Attention: The last reply to this post was 2794 days ago. The thread may already be out of date. Please consider creating a new thread.

Message information
Message
Settings
Automatically converts internet addresses into links by adding [url] and [/url] around them.
Smiley code in your message such as :) is automatically displayed as image.
You can use BBCode to format your message, if this option is enabled.
Security measure

Please enter the letters that are shown in the picture below (without spaces, and upper or lower case can be used).

The last 2 posts

Tuesday, August 22nd 2006, 6:20am

by Bill Painter

Jack, you state "and there is 24V AC current at the valves."
Is this all 3 solenoids at the same time?
Is it actually current, or just voltage there? Voltage "ain't worth a damn" of there's no current to go with it.
Did you read the voltage with the solenoids disconnected or while under load? (Very important!)

In any case, each makes a big difference as to what's going on at each solenoid. Make sure the wires are not crossed, i.e., the common wirre is actually the common, and the resistance reading from the clock common to each of the valve terminals for the whole system is approximately the same.
Hopefully you have all the same type solenoid.

Last, read the working voltage at the clock as well as at the valves, individually. Lower voltage at the solenoid depicts a bad connecton somewhere.

Tuesday, August 22nd 2006, 4:50am

by jackevln

Diagnosis HELP! needed


I need some help with a strange problem.
I have a lawn sprinkler system with a WeatherMatic 8A
controller operating seven sectors. The seven valves
ae located 3,3,1 in separate valve "boxes".
Last week an old valve ruptured (in a valve "box"
of three). I replaced the valve as I have replaced others
at previous times. After replacement I restarted the system.
But strangely now, none of the three valves at that location will work.
I did nothing to the other two there and simply replaced the wiring
of the removed valve with the wiring of the new one.
An imediate thought (the only relation I know among the three valves)
was that the shared common was no connected. But, it is properly
connected and there is 24V AC current at the valves.
Does the controller "know" that these three happen to be located
together?
What would cause all three to stop working ? Two were OK when the
third ruptured, and it was replaced with a new one. The other four sectors
are still working normally.
My owners manual tells me nothing technical about the controller.
How do they trigger the valves to open? They are closed without
power and they stay closed with power so what opens them?

jackevln@aol.com