How to fix rudder feedback failure on Simrad AP35?
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Carolyn WalshAug 21, 2025
If your Simrad Autopilot System shows a rudder feedback failure and operates on simulated feedback, it means the rudder feedback signal is missing or erratic. First, check all connections and ensure they are secure. Then, check the alignment according to the installation instructions. If the problem persists, you may need to replace the rudder feedback unit.
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Alexis MooneySep 3, 2025
Why does Simrad AP35 rudder test fail and not complete in 2 minutes?
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Willie Stevens MDSep 3, 2025
If the rudder test on your Simrad Autopilot System failed because it was not completed within 2 minutes, it may be due to poor connections to the drive unit, a faulty Main PCB in the junction unit, or a faulty Power PCB in the junction unit. Check the connections to the drive unit. Replace the Main PCB. Inspect the Power PCB for traces of burnt transistors, and if found, replace the PCB.
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Dennis BairdSep 1, 2025
What to do for low supply voltage on Simrad Autopilot System?
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Diane JohnsSep 1, 2025
If your Simrad Autopilot System is showing a low supply voltage, and the mains voltage is less than 9 Volts, first verify this through the System Data Menu. Then, switch the autopilot off and charge the batteries. Finally, check and repair the battery charger.
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moorevictoriaAug 31, 2025
Why does the rudder move in one direction only on my Simrad AP35 Autopilot System?
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Kristine WilsonAug 31, 2025
If the rudder on your Simrad Autopilot System only moves in one direction, it could be due to a poor connection to one of the solenoids, causing the pump to run continuously, or a faulty Power PCB in the junction unit. Check the connections to the solenoids. If the connections are good, replace the PCB.
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Jeffrey CampbellAug 29, 2025
What causes J3XX current overload in Simrad AP35?
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ifreyAug 29, 2025
If you are getting a J3XX current overload error on your Simrad Autopilot System, it means the drive unit shut down due to excessive load or a short circuit. Check the drive unit, its installation, manual steering, and the rudder for any issues. Disconnect the drive unit; if the fault is still present, replace the junction unit Power PCB.
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Donald ClarkeAug 27, 2025
Why is the rudder test too slow on my Simrad AP35 Autopilot System?
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Thomas GeorgeAug 27, 2025
If the rudder test is too slow on your Simrad Autopilot System, it may be due to excessive load on the steering gear, air in the hydraulic system, or insufficient drive unit capacity. Check for mechanical obstructions at the rudder, tiller, or quadrant and inspect the back drive force. Bleed the hydraulic system to remove any air. If the problem persists, replace the existing pump unit with a bigger one.
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Beverly HamptonAug 27, 2025
How to troubleshoot Comm. failure on Simrad AP35 active control?
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Shaun BennettAug 27, 2025
If you are experiencing a communication failure with the active control unit on your Simrad Autopilot System, including the FU35 going silent, first press the STBY button on the 'Inactive' unit to attempt a reset. Then, inspect and repair the Robnet cable. If the problem persists, consider replacing the control unit or the FU50 PCB.
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Gabriela TaylorAug 25, 2025
Why is there a rudder response failure in my Simrad AP35 Autopilot System?
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Jillian HughesAug 25, 2025
If your Simrad Autopilot System has a rudder response failure, and there is no response to rudder commands, begin by checking all connections. Next, check the Rudder Feedback transmitter link and inspect the drive unit motor and brushes. If the issue remains, consider replacing the junction unit Power PCB.
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David SchmidtAug 23, 2025
What to do if compass data is missing on Simrad AP35 Autopilot System?
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edward39Aug 23, 2025
If your Simrad Autopilot System is showing that compass data is missing, it indicates that there is no data from the selected compass. If you have multiple compasses connected, go to the USER SETUP menu and select a different compass. Also, check the connections and the Interface menu settings. If the problem continues, consider replacing the compass PCB or interface PCB, remembering not to cut any cables as the PCB contains screw terminals.