Question
QUESTION: I bought the Orbit 57071 and it works fine.  However, I have 2 timers since they did not make one with enough zones when my system was installed.  I connected the Rain Sensor to 1 and it works fine.  Then I also hooked in the 2nd system timer by hooking the common from the sprinklers into the same yellow as the 1st and jumpered another white from the white output of the sensor.  Basically, just used the Sensor to control 2 timers in parallel.  But it did not work.  Do you know if I can wire this properly to get 1 sensor to control 2 timers?

Thanks,  Steve

ANSWER: Steve,

Well, I've never tried it, but the way you wired it would be the same way I'd do it.
Though it may not make any difference. Try on only one controller reversing the power "in" wires.(from the transformer)The transformers may not be in phase. That's not the correct word, but I'm sure you know what I mean. I'm thinking one controller is grounding "commoning" through the other.
If you would let me know if this works, I'm learning too.

Matt


---------- FOLLOW-UP ----------

QUESTION: When I did this the first time, I only hooked up the power on the Rain Sensor to the power on one timer.  I don't think the Sensor needs power from both timers.  Are you saying do what I did, but switch the red power wires to the opposite power tabs on the timer?

Answer
Leave the rain sensor wired just the way it is. Just reverse the power wires coming into the controller.
You could also leave the controller with the rain sensor just the way it is and reverse the power wires on the other controller. It might be easier.

Matt