Rain Bird MV FAULT

Discussion in 'Irrigation / Sprinkler Forum' started by lcarstensen, Jul 5, 2009.

  1. lcarstensen

    lcarstensen New Member

    Jul 5, 2009
    I have a Rain Bird esp-lxi16+. I keep getting an MV FAULT error. Can thi be fixed? The manual says i have an electrical fault has ocurred in the master valve or pump start relay circuit. How do I diagnose and fix that? Please
  2. jimbo

    jimbo Plumber

    Aug 31, 2004
    San Diego
    There is a terminal on your timer labeled MV OR Pump Start. It is for just that, to open a main valve, or energize a pump start relay...in conjunction with opening a zone valve. If you have something connected there, it is telling you there is a fault...short,whatever. If nothing is connected to that terminal...the timer is kapooey!
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