Troubleshooting Raymarine radar that is not rotating – Power issues and best practices

Digital Skipper |31/01, 2025

How to check power supply, avoid corrosion, and use radar effectively for safe navigation

Troubleshooting Raymarine radar often involves checking power supply, wiring, and connections. In this guide, you will get practical tips for avoiding corrosion, ensuring correct installation, and using radar effectively for safe navigation.

Check power and ground wires

It is recommended to inspect the power and ground wires for the radar cable to ensure:

That the cables are free from corrosion.
That the connector's jaws clamp onto the wire's conductor, not the insulation.
That all connections are tight and secure.

If this is met and the problem persists despite a fully charged battery bank, it indicates that the radar may have suffered a fault.

Most common cause – insufficient power

The most common cause of radar problems is lack of sufficient power supply. Follow these steps:

Connect the vessel to shore power.
Fully charge the batteries.
Test the system while still connected to shore power.

If the problem persists and the installation was performed by a certified Raymarine installer, contact the installer for action.

Have you installed it yourself and the radome was purchased less than 30 days ago? Contact your retailer for replacement. If more than 30 days have passed, send the radar to Raymarine Repair for bench testing and service.

Best practices for radar – use it regularly

In addition to resolving problems, it is best practice to use your radar even in good weather. This provides three important benefits:

Become familiar with the system: You learn to interpret radar images before you encounter bad conditions.
Ongoing functional test: You detect problems in time and avoid surprises.
You maintain a proper lookout, which the radar helps you with.