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ACTIVE HEADER CONTROL (AHC)
™
Will Not Operate
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Manual raise or lower does not work.
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See your John Deere dealer.
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ACTIVE HEADER CONTROL (AHC)
™
not enabled.
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Enable ACTIVE HEADER CONTROL (AHC)
™
mode that is desired in corner post display unit.
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Feederhouse to header connector not connected or loose.
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Connect properly.
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Header sensor not properly connected or damaged.
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Connect or repair sensor.
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ACTIVE HEADER CONTROL (AHC)
™
Lowers But Will Not Raise.
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Defective ACTIVE HEADER CONTROL (AHC)
™
relay or ACTIVE HEADER CONTROL (AHC)
™
card.
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See your John Deere dealer.
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ACTIVE HEADER CONTROL (AHC)
™
Raises But Will Not Lower
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Defective ACTIVE HEADER CONTROL (AHC)
™
relay or ACTIVE HEADER CONTROL (AHC)
™
card.
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See your John Deere dealer.
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Control shaft restricted.
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Check for restriction.
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Auto drop rate valve closed.
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Adjust in-line valve.
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System Cycles or Hunts
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Incorrect drop rate adjustment.
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Adjust in-line valve.
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Incorrect accumulator setting.
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See your combine Operator's Manual.
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System Fails Intermittently After Manually Raising Header Over Obstacle.
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System was de-activated.
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To re-activate, press activation button in multi-funtion handle.
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Header Raises or Lowers Too Slow or Too Fast.
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Incorrect drop rate adjustment.
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Adjust valve stack drop rate.
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In-line valve problem.
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See your John Deere dealer.
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