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FAQ on Garmin Autopilot

How do I upgrade my GHP 10 to the GHP Reactor?
If you have a GHP 10 currently, but would like to upgrade to the GHP Reactor autopilot, you need to do the following:

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How do I upgrade my GHP 12 to the GHP Reactor?
If you have a GHP 12 currently, but would like to upgrade to the GHP Reactor autopilot, you need to do the following:

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Will my autopilot follow an Auto Guidance route when using a BlueChart g2 Vision or LakeVü HD Ultra card?
Compatible Garmin chartplotters with an installed BlueChart g2 Vision or LakeVü HD Ultra card will have access to a feature called Auto Guidance. Auto Guidance will provide a path to the desired destination that will avoid shallow and unnavigable waters. After the Auto Guidance route has been calculated, a suggested route will appear on the screen.

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Why does my GHP Autopilot make sharp turns when it is engaged?
Sometimes, due to incorrect installation or commissioning, a GHP autopilot could be making sharp turns. This creates a safety hazard when using the autopilot at high speeds. To resolve this issue, we need to go over a few things.

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How long does it take to commission my GHP Reactor?
The commissioning process for the GHP Reactor takes much less time than Garmin's previous autopilots. In optimal conditions, the process can take as little as 5 minutes from when you begin the Sea Trial Wizard on the autopilot display. For assistance commissioning the autopilot, please view the installation instructions for your autopilot: https://support.garmin.com/support/manuals/searchManuals.faces

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How do I determine the planing RPM of my boat when setting up my Garmin autopilot?
Power planing vessels will be required to input their planing RPM during the setup and calibration of a Garmin autopilot system.

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Is the AHRS of my GHP Reactor still susceptible to magnetic interference?
The AHRS for the GHP Reactor can be mounted in any location in any orientation. However, the AHRS can still be influenced by electromagnetic interference (EMI). The device should be at least 2 feet away from magnetic materials (speakers, ferrous metal, pumps, etc.), power cables, batteries and any other EMI producing items. Failure to follow these guidelines will prevent your autopilot from functioning properly. When in doubt, refer to the CCU Mounting and Connection Considerations in your autopilot installation instructions: https://support.garmin.com/support/manuals/searchManuals.faces

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Why does my GHP Autopilot display the message "Searching for Autopilot Controller"?
The message "Searching for Autopilot Controller" is generally displayed when the GHC display is not receiving a signal from the Course Computer Unit (CCU).

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Why does the GHP 10 Autopilot occasionally report error message "Hydraulic Pump Stall"?
There may be a few reasons the Hydraulic Pump Stall error message appears on the GHP 10 Autopilot.

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How can I make sure the hydraulic steering system of my boat is fully bled after installing the GHP 10 Autopilot?
To be certain the hydraulic sterring system of your boat is fully bled, please attempt to steer the boat with both the helm and the autopilot and be sure that the rudder response is normal. In a poorly bled system, air in the lines will compress and lead to noticeable degradation in steering.

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Can I use the GHP 10 or GHP 20 with my Hynautic Steering System?
If the boat that is being equipped with the GHP 10 or GHP 20 Autopilot has a Hynautic hydraulic system already installed, there are a few considerations to follow in order to allow the autopilot to perform optimally.

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What should I do if I see "System Missing" on my GMI 20 or GHC 20?
If you see the message “System Missing” on a GMI 20 or a GHC 20 (connected to a GHP 20 or GHP Reactor autopilot system) it is possible that the system software can be boot-blocked reinstalled. A NMEA 2000 compatible Garmin chartplotter, or NMEA 2000 Network Updater, and a softare update card will be necessary. The software update can be acquired from the Marine Device Software Updates page as a free download or purchased on a preloaded card.

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How do I upgrade my GHP 20 to the GHP Reactor?
If you currently own an GHP 20, but would like to upgrade to the GHP Reactor, you would need to do the following:

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How do I upgrade my GHP 10V to the GHP Reactor?
If you have a GHP 10V, but would like to upgrade to the GHP Reactor, you will need to do the following:

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