Troubleshooting Cart Controller

Tank level shown on display is incorrect.

Bin level sensors not functioning properly

Verify cart harness plugged into sensor.

Faulty bin level sensor. Put sensor in closed position and check for continuity. Put sensor in open position and verify open circuit.

Erratic tire speed reading while stationary.

Improper sensor alignment.

Check and adjust sensor. See Service section.

Faulty sensor.

Replace tire speed sensor.

No tire speed while moving.

Incorrect Setup.

Perform/verify tire calibration in Setup/Air Cart/Page/Sensors.

Improper sensor alignment.

Check and adjust sensor. See Service section

Damaged sensor/wiring.

Verify tire sensor connected to cart harness and inspect for damage and repair.

No application rate.

Main clutch OFF.

Turn main clutch ON.

Incorrect Setup.

No meter displacement defined.

Improper sensor alignment.

Check and adjust sensor. See Service section.

Damaged sensor/wiring.

Verify meter sensor connected to cart harness. Inspect for damage and repair.

Incorrect meter revolution while doing a calibration.

Improper sensor alignment.

Check and adjust sensor. See Service section.

Disconnected or damaged wiring.

Inspect, connect or repair wiring to meter and tire speed sensors.

No sensor signal.

Replace failed sensor. See Service section.

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Indicator lights do not show tank full or fan speed.

Burned out bulb.

Replace light bulb.

Display not set for fan speed entry.

Enter fan speed set-up.

Cart movement sensed.

Cart must be stationary for lights to work.

Disconnected or damaged wiring.

Inspect, connect or repair wiring to both lights and sensors.

Fan speed sensor out of adjustment.

Check and adjust sensor-to-target gap. (See Service section.)

No sensor signal.

Replace failed sensor.

Faulty display console or controller.

See your John Deere dealer.

Incorrect product application rate displayed.

Disconnected or damaged wiring.

Inspect, connect or repair wiring to meter and tire speed sensors.

Sensor(s) out of adjustment.

Check and adjust sensor-to-target gap. (See Service section.)

No sensor signal.

Replace failed sensor. (See Service section.)

Incorrect values entered at Tank Meter Set-Up.

Review and correct set-up entries.

Main drive clutch slipping.

See your John Deere dealer.

Independent meter clutch slipping.

See your John Deere dealer.

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Inaccurate area or no area displayed.

Excessive overlap while seeding.

Account for overlap.

Disconnected or damaged wiring to tire speed sensor.

Inspect, connect or repair wiring.

Sensor(s) out of adjustment.

Check and adjust sensor-to-target gap. (See Service section.)

No sensor signal.

Replace failed sensor.

Incorrect values entered at set-up.

Review and correct set-up entries.

Incorrect tire speed calibration value entered.

Reset speed calibration value.

Remote seeder switch out of adjustment.

Adjust so switch is open when tillage is raised from ground; closed when lowered into ground.

Faulty remote seeder switch.

Replace remote switch.

Faulty display console or controller.

See your John Deere dealer.

Variable rate goes to highest/lowest setting.

Target rate outside of transmission/meter combination range.

Check meter setup.

Check meter calibration.

Tire and meter sensor not adjusted correctly.

See Service section.

Tire sensor.

See your John Deere dealer.

Meter sensor.

See your John Deere dealer.

Faulty controller.

Unplug harness from motor. Manually set transmission to 50. Connect harness to motor again. If motor turns while cart is stationary, see your John Deere dealer.

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Variable rate fluctuates (cannot maintain set point).

Lead screw binding.

Check lead screw locking collar end play and verify lead screw is free to move.

Check threads for foreign material and clean if necessary.

Erratic meter rotations.

See your John Deere dealer.

Warped or loose tone wheel with meter sensor and/or tire sensor.

Replace and/or adjust tone wheel.

Variable rate does not adjust.

No voltage to motor.

Verify power lead is connected and inspect wiring for damage.

Transmission adjustment screw jammed or stripped.

Clean, lubricate or replace adjustment screw. See your John Deere dealer for appropriate choice of lubricant.

Variable rate option not selected in Setup.

Enable variable rate in Setup.

Rate not defined for tanks.

Define Target Rate for tanks.

Meters not engaged.

Turn on Front, Rear or Middle Tanks as appropriate.

Faulty sensors.

See your John Deere dealer.

Sensors not adjusted.

See your John Deere dealer.

Faulty harness.

See your John Deere dealer.

Bad motor or bad controller.

See your John Deere dealer.

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Main drive or independent meter clutch slipping.

Lubricant (grease or oil) inside clutch (main only).

See your John Deere dealer.

Low power to clutch or solenoid.

Check wiring connections.

Check tractor electrical system. See your John Deere dealer.

Faulty clutch or solenoid.

Repair or replace clutch and/or solenoid. See your John Deere dealer.

Clutches do not shut off during calibration.

Incorrect Air System setup.

Check Setup/Air Cart/Seeding Tool/Air System. Enter correct values for number of secondaries for each primary and which tank feeds that primary.

Verify sprocket selection. Check Setup/Air Cart/Seeding Tool/Air System. Enter correct values for tire and row spacing sprockets.

Shows 0.0 for meter displacement after calibration.

Incorrect Air System setup.

Check Setup/Air Cart/Seeding Tool/Air System. Enter correct values for number of secondaries for each primary and which tank feeds that primary.

Verify sprocket selection. Check Setup/Air Cart/Seeding Tool/Air System. Enter correct values for tire and row spacing sprockets.

Distance check does not match target rate.

Incorrect Air System setup.

Check Setup/Air Cart/Seeding Tool/Air System. Enter correct values for number of secondaries for each primary and which tank feeds that primary.

Verify sprocket selection. Check Setup/Air Cart/Seeding Tool/Air System. Enter correct values for tire and row spacing sprockets.

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No transmission setting recommended.

Target rate too high/low for meter displacement.

Verify number of fine tuning rings.

Verify correct meter roller.

Tire calibration incorrect/not done.

Perform tire calibration.

See solution for Incorrect Air System Setup above.

Correct Setup.

Meter not filled before calibration.

Fill meter-perform calibration.

Improper meter sensor placement.

Check sensor adjustment. See Service section.

Meter displacement lower than expected.

Obstruction in Meter/Tank preventing product flow.

Check product passages for obstructions.

Slide or manifold bypass openings plugged.

Clean openings.

Cannot calibrate meter.

Obstruction in Meter/Tank preventing product flow.

Check product passages for obstructions.

Slide or manifold bypass openings plugged.

Clean openings.

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Clutches will not engage (Main or Meter).

Variable rate enabled and target rate defined as zero (meter clutch only).

Adjust Target rate (prescription).

Clutch strap binding on meter clutch.

Check for clearance at pivot point and adjust if necessary.

No power to clutches.

Check power to pin 7 on SAE 7-pin connector to tractor.

See Flow Chart 2.

Remote seeder switch open (tillage out of ground).

Lower tillage to close switch.

Remote seeder switch out of adjustment.

Adjust so switch is open when tillage is raised from ground, closed when lowered to ground.

Faulty remote seeder switch.

Replace switch.

Dirty solenoid.

Remove dirt from solenoid, clutch and housing.

Paint preventing solenoid from engaging.

Remove paint. Apply grease.

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