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Code 1-5 (One pulse followed by a short pause followed by five
pulses.) Indicates motor failed to start.
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Jammed reels.
Tight reel to bedknife clearance.
Failed bearings.
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Code 1-6 (One pulse followed by a short pause followed by six
pulses.) Indicates motor stalled while running.
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Jammed reels.
Bedknife to reel adjusted too tight.
Failed bearings.
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Code 1-7 or 1-8 (One pulse followed by a short pause followed
by seven or eight pulses.) Indicates low alternator voltage.
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Engine RPM too low.
Low or no voltage output from alternator.
Poor connections on alternator or alternator harness.
Alternator belt slippage.
Alternator malfunction.
Excessive reel load from items mentioned in Code 1-6.
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Code 1-10 (One pulse followed by a short pause followed by ten
pulses.) Indicates reel direction reversed for 1/4 turn of motor.
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Jammed reel.
Jammed or Failed Greens Tender Conditioner or Rotary Brush.
Damaged bedknife or reel.
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Code 2-5 or 2-8 (Two pulses followed by a short pause followed
by five, six or eight pulses.) Indicates motor current over the limit,
due to excessive load or jammed reel.
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Jammed Reel.
Bedknife to reel adjusted too tight.
Failed bearings.
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Code 2-9 (Two pulses followed by a short pause followed by nine
pulses.) Indicates Internal controller temperature resulted in controller
shutting down motor.
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Tight reel to bedknife clearance.
Bedknife to reel adjusted too tight.
Overheated controller.
Controller cooling fins plugged with debris.
Heavy load on motor.
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Code 2-10 (Two pulses followed by a short pause followed by
ten pulses.) Indicates Internal motor temperature resulted in controller
shutting down motor.
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Disconnected connectors.
Reel motor wires are damaged.
Cutting unit not turning freely.
Dull reel and bedknife.
Heavy load on reel motor.
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Code 6-4 (Six pulses followed by a short pause followed by four
pulses.) Indicates motor position sensor error at start.
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Disconnected connectors.
Damaged or broken wires.
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Code 6-6 (Six pulses followed by a short pause followed by Six
pulses.) Indicates motor position sensor error while running.
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Overheated reel motor.
Cutting reel jammed by debris.
Reel drive system not turning freely.
Tight reel to bedknife clearance.
Disconnected connectors.
Dull reel and bedknife.
Jammed or failed attachment.
Broken or damaged wires between motor and controller.
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Code 7-2 (Seven pulses followed by a short pause followed by
two pulses.) Indicates phase short to ground.
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Debris in connectors.
Wires from controller to motor shorted.
Internal short in motor.
Internal short in controller.
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Code 7-3 (Seven pulses followed by a short pause followed by
three pulses.) Indicates high current to motor.
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Broken or damaged wires between motor and controller.
Contaminated connections between motor and controller.
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Code 7-4 (Seven pulses followed by a short pause followed by
four pulses.) Indicates open high-amperage wire between motor and
controller.
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Broken or damaged wires between motor and controller.
Open connector between motor and controller.
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Code 7-5 (Seven pulses followed by a short pause followed by
five pulses.) Indicates frequency of cut potentiometer speed control
voltage is low.
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Poor connection between the controller and speed control potentiometer.
Damaged wires between controller and speed controller potentiometer.
Potentiometer malfunction.
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Code 8-1 (Eight pulses followed by a short pause followed by
one pulses.) Indicates internal alternator temperature resulting in
shutting down motor.
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Disconnected wiring connectors.
Broken or damaged wires between alternator and controller.
Poor connection on 48-volt power or ground connections.
Cutting unit not turning freely.
Dull reel and bedknife.
Excessive load on reel motor.
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Code 8-2 (Eight pulses followed by a short pause followed by
two pulses.) Indicates failure to hold frequency of clip due to excessive
load or jammed reel.
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Cutting unit jammed with debris.
Cutting unit not turning freely.
Tight reel to bedknife clearance.
Dull reel and bedknife.
Jammed or failed attachment.
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Code 8-3 (Eight pulses followed by a short pause followed by
three pulses.) Indicates alternator speed sensor error resulting in
shutting down motor.
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Disconnected wiring connectors.
Broken or damaged wires between alternator and controller.
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Code 8-4 (Eight pulses followed by a short pause followed by
four pulses.) Indicates Incorrect controller for this machine.
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Wrong controller on machine. Need to replace with proper controller
for model of machine.
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Code 9-2 (Nine pulses followed by a short pause followed by
two pulses.) Indicates alternator output too high.
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Alternator internal regulator.
Alternator over speed.
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Code 9-3 (Nine pulses followed by a short pause followed by
three pulses.) Internal controller failure.
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Call John Deere Dealer.
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Code 9-5 (Nine pulses followed by a short pause followed by
five pulses.) Indicates signal wires shorted to external power line
or ground.
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Broken or damage wires between motor and controller.
Signal wires shorted to ground.
Contaminated connector.
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Code 9-7 (Nine pulses followed by a short pause followed by
seven pulses.) Indicates supply voltage from controller to frequency
of clip (FOC) speed control potentiometer voltage is low.
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Poor connection between the controller and speed control potentiometer.
Damaged wires between controller and speed controller potentiometer.
Shorted ground on speed controller potentiometer.
Potentiometer malfunction.
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