Toro TWRS Receiver display is blank, Sensor module does not activate the receiver at close range

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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 Bypass” switch is not in the Bypass or Active position.

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Contents User’s Guide Contents Page Here’s all there is to it Getting StartedStep Receiver Module Features Installing the Receiver Module Wiring Procedure I sensor-ready Connecting the Receiver WiresNormally-open Sensor Wiring Procedure II no sensor featureLeast of 15 seconds to establish communication Initial System TestSensor Module Features Installing the Sensor Module 1/4 Washer Freeze Sensor Site Selection Select Temperature Threshold Set Temperature Activation Threshold Twrfs models onlySelect Temperature Scale Page Water Delay Feature Smart Bypass FeatureBattery Strength Display Signal Strength DisplayRefer to Sensor Module Battery Replacement on Fail Safe Feature Dry Out FeatureLoss of communication Prolonged Active ModeTurn the Receiver Module Off and On Set or Restore the Sensor Address CodeUnscrew and remove the bottom cap from the sensor housing Sensor Module Battery ReplacementSolving Reception Problems TroubleshootingTo improve signal strength Sensor module does not activate the receiver at close range Receiver display is blankSpecifications Toro Promise Five-year Limited Warranty FCC ID OF7TWRS