Windlass and Chart Plotter Interference

[JeffreyAC77]

When I operate my windlass the Garmin shuts down. I have to wait until we are done with the windlass to operate the Chart Plotter once again. Any clues as to what is happening? I have a 2015 R31-CB (luxury edition) with a Garmin 7215.

 

[bob daily]

I believe your Garmin will shut down on low voltage, it would appear that your windlass and GPS are on the same battery, during operation of the windless the draw on the battery is enough to shut down the GPS unit. Bob

 

[JeffreyAC77]

Thanks.

 

[Cutwater28GG]

i concur with the diagnosis. curious do you have the engine on when you operate the windlass?

 

[JeffreyAC77]

I do have the engine on - is that part of the problem?

 

[S. Todd]

Your engine should be on when working the windlass. I believe the question was asked because the engine alternator should have kept the voltage up. I would suspect your battery is getting weak or has some poor connections. I am surprised that the Garmin is not powered by the house batteries.

 

[Kevin Lamont]

When I operate my windlass the Garmin shuts down. I have to wait until we are done with the windlass to operate the Chart Plotter once again. Any clues as to what is happening? I have a 2015 R31-CB (luxury edition) with a Garmin 7215.

Hello,

We recommend that the engine is on when using the windlass. I would be interested in what the power drop was when running the windless to see if there might be corroded connections or possible the windlass is struggling causing a higher voltage pull. The plotter and windless pull voltage from the house bank so if you haven't had the batteries load tested in awhile I would also recommend having that done. Hope this helps.

Thanks,

 

[scross]

In our 2009 R25 Classic the windlass is powered by the battery that also powers the thrusters. We never run either without the engine on. That dedicated battery is almost always at full charge.
I find it odd to power the high amp windlass from the house deep cycle batteries which draw down while on the hook. What advantage is there to do that over having the windlass powered by the starter type thruster battery?

 

[JeffreyAC77]

I have 4 new AGM batteries in the house bank.

 

[knotflying]

See if the chart plotter and windless are on the same battery. I have seen this causing that issue in the past.

 

[JeffreyAC77]

Thanks much.