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Systems Monitor

4.9K views 23 replies 12 participants last post by  dtfeld  
#1 ·
#3 ·
The orange wire is 12v out to an external buzzer to sound the alarm when a fault occurs. Should be a little black disc zip tied to the switch panel wiring. That’s the buzzer.

Data link error is either a bad cable run between the Controller and the DDU, or a bad or not powered controller.
 
#4 · (Edited)
I believe these are all the same and have 3 connections. The Red and Black are DC Power, and the Blue is the backlight, so all your connections at the display are correct. The fact you display is working is a pretty good sign.

Correction...Orange may be for a buzzer...I cant remember!!

The issue is the coax connection between the Sytems Monitor Indicator Panel at the helm, and the Interface Module in the engine room. I'd locate the interface unit and make sure the existing coax is connected and clean the connections at both ends first

If that doesn't fix it, an easy way to diagnose it to get a length of new coax and run it from the display to the interface in the engine room. If that fixes it, you just need to neatly rerun a new coax.

Do this first and report back.

View attachment 124818
 
#18 ·
My system monitor alarm constantly sounds. Like the bilge float switch is stuck in the on position but they are not. While the alarm is ringing the monitor says all systems normal. I disconnect shore power as well as shutting the batteries off and go through the DC breakers one at a time. Still hear the alarm. Any suggestions?
 
#22 ·
Hello Gentlemen..... I have a 2000 340 Sundancer and few days ago we had a pretty crazy rain storm and a ton of water hit my dash. It caused my system monitor to go crazy! the alarm went off and all lights lit up. Other than the rain, there was nothing going on. No engines running, I was docked in the slip. I had to cut the power wire so the alarm would stop. I figured things were just wet and needed to let them dry out. I attempted to wire it back up but it still is doing the same thing.

Any ideas?

P.S. This is a new boat to me. Pervious owner kept it in awesome shape.
 

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