Raymarine Wind Transducer Troubleshooting – Complete Guide for Wind Vane and Rotavecta

How to test your wind transducer with a multimeter and identify common faults on wind instruments .

If your wind transducer is not working at all and you see no apparent wind data on any display, follow this guide. Alternatively:

• If apparent wind works but true wind is incorrect, see: Apparent wind, true wind and ground wind.
• If data is correct on one display but incorrect on another, see: ST60, ST60+, i60 analog wind/tiller.
• If you have wind data on one display but not on another, see: Diagnose Seatalk1 communication problems.

Applicable products

These tests apply to wind vane and Rotavecta sensors used with:

• Current: i40, i60, i70, ITC5
• Discontinued: ST30, ST50, ST60, ST60+, ST290, ST70, ST70+

Note: Does not apply to wireless wind systems (TackTick) or ST80 wind vanes.

Pre-checks

Check that the anemometer cups and vane are intact and that the transducer is securely mounted on the masthead. Damage from birds is common. Raymarine has two types of transducers:

• Trapezoid cups: ST50, early ST60 – replacement part: E28081
• Hemispherical cups: Later ST60/60+ to current – replacement part: A28167

Replacement cups for Rotavecta sensor: D240

Test process

You will need a multimeter and a wind display that powers the transducer (12V). Only test when wind data is not working. Follow the steps:

1. Set the multimeter to DC voltage.
2. For manual multimeter: select the 20V range.
3. Connect the wind transducer to the display and measure the voltages at the crimp terminals.

Supply voltage

• Positive: Red
• Negative: Black/shield
• Expected: approx. 8V stable

Wind angle (sine-cosine pair)

• Blue: 2–6V, varies smoothly with rotation
• Green: 2–6V, 90° out of phase with blue

Wind speed

• Yellow: Pulses 0V–5–8V, two pulses per rotation

Static voltage = cable or transducer fault. Check masthead connector for moisture or corrosion.

Pinout for wind vane

1. Black (0V)
2. Red (8V)
3. Green (Wind angle)
4. Blue (Wind angle)
5. Yellow (Wind speed)

Test Rotavecta sensor

• Positive: Red

• Negative: Blue
• Expected: Pulses 2.8V–7.5V with rotation

At 0V: display fault. At static high voltage: cable or sensor fault.