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❑ The receiver display is blank.
• Check the 24 Vac power connections. The red power wires from the receiver must be
connected to the controller’s 24 Vac power source. Make sure the power wires are not
connected to the station or pump/master valve terminals. These terminals only provide 24
Vac power when the controller is operating the sprinkler zones.
❑ The sensor module does not activate the receiver at close range.
• The receiver module may not recognize the sensor module address code.
See “Set or Restore Sensor Address Code” on page 20.
• Remove and replace the sensor module batteries.
❑ The sensor system works, but the controller does not respond to the sensor.
• Check the Yellow or Brown wire connection. The Brown wire must be used for Normally
Closed (NC) controller operation and Yellow wire for Normally Open (NO) operation.
• The Brown wire must be used when splicing into the valve common wire.
• Make sure the controller’s Sensor control switch is not
in the Bypass or Off position.
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373-0372a_E/S/F 6/7/05 1:59 PM Page 23