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Starting Member


Monday, June 27th 2016, 10:02pm

Esp 12-lx Plus: Zones failing to start

Hi - Recently one of the zones on my sprinkler system (ESP 12-LX PLUS controller) failed to start. Soon after, two other zones failed to start. I ran through the Raster test and all zones pass but the test says 'Open MV'.

Is my controller failing? Is there anything that can be done?



Advanced Member

Posts: 111

Location: Omaha, Nebraska, USA


Tuesday, June 28th 2016, 5:29pm

I'd check the wiring first, then the solenoids. You can check your controller with a multimeter by running a zone and holding the leads of the meter to the proper zone port and the common port. you should get around 24V.


Wednesday, August 10th 2016, 8:11am

Multiple zones failing could be a common wire connection problem.

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