Hi, Now that the ST5000+ autopilot
is working (today), I discovered another strange behavior with the boat's electronics
. The boat has (in theory) separate house and starter battery
banks. When setting the A-B-Both to starter AND engage ST5000+ autopilot
, the RL70 chartplotter
recycles and restarts. When put on standby, the chartplotter
works as normal. When setting the A-B-Both to House or Both, the chartplotter and autohelm
play nicely together and work fine.
I am in the process of untangling the wiring
on this boat. I plan on reviewing all the wiring
components, and comparing to the original specs. There's a Heart 10 charger/inverter, some sort of Xantrex module, along with a non-functioning battery
combiner. All of this routes through the A-B-Both switch, along with alternator
. Thankfully, no other sources of electrical
My suspicion is that something is wired to the starter battery. When using only the starter battery, voltage is somehow leaking across (through the instrument or faulty battery combiner?), to the house bank, powering the other instruments. There may be sufficient voltage to run the wind
, speed, depth
modules, but not enough for the chartplotter, causing it to keep resetting. The funny
thing, is it only happens when engaging the autopilot (set to Auto).
What do you think is going on? I think a complete electrical review is in order!