Troubleshooting Functions
Troubleshooting functions involves problems with the values displayed. For other problems
- If you are unfamiliar with your system, see Forensic Troubleshooting.
- If nothing is working, e.g. no lights or displays, see Power Troubleshooting.
- Processor seems to be OK, but displays aren’t, see Bus Troubleshooting.
- If an individual display is acting up, see Display Troubleshooting.
Some functions missing
- Necessary interface missing. See Configuration.
- Function is disabled. See Disabling Tags.
Boatspeed not zero when it should be
- (Several Knots) Usually caused by the AC power to the battery charger. Try disconnecting the boat from shore power.
- (Small number or Intermittent) Caused by current or vibration transmitted through the hull to the paddle.
NOTE: because they have no bearings to unstick, ultrasonic boatspeed sensors will typically show a few tenths of a knot at the dock.
Apparent Wind Speed not zero when it should be
- (Several Knots) Usually caused by the AC power to the battery charger. Try disconnecting the boat from shore power.
- Caused by mast vibration.
- Apparent wind speed modified by roll rate. See discussion in Section 4, Option 8.
Bad Wind Direction
- No True Wind Speed. Since true wind is a vector solution, when true wind speed is zero, True Wind Direction has no meaning and is set equal to Heading.
- Check True Wind Angle, True Wind Speed and Heading for proper values.
Bad True Wind Angle
- Zero True Wind Angle. Since True Wind is a vector solution, when True Wind Speed is zero, True Wind Angle has no meaning, and is set to 0.
- Check Apparent Wind Angle, Apparent Wind Speed and Boatspeed for proper values
Bad Apparent Wind Angle
- Apparent wind angle modified by roll rate. See Setting Mast Height.
- Bad masthead sensor Bad Heading.or or connection between masthead and interface. Check for TEST Errors 33, 34 and 35.
- Loose masthead bracket.
Bad Heading
- No power to heading sensor. Most heading sensors require a separate power supply. Check that the heading sensor is receiving power.
- Some magnetic item has gotten near the sensor.
- Sensor needs compensation.
LOG or TIME resets on power up or engine start
- Dead backup battery. Return CPU for service when convenient.
Wierdness
More detail
Technical papers on Troubleshooting
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