BeebopInPB
New Member
- May 22, 2022
- 12
- Boat Info
- 2011 sea ray sundeck 260
- Engines
- Merc 350 bravo 3 outdrive
Hey folks, 2011 260 Sundeck here. having an electrical problem.
Had marina service the boat (oil change, lower unit svc etc) before storing for the winter in heated storage. put two new batteries into boat this year. Discovered electrical problem. Here is the problem and all the observations I've made since:
Problem: engine starts, but blower/water pump/all lights/radio/digital readout on dash doesn't come on.
Checked a 50A breaker that, on page 25 of the 2011 owner's manual refers to as a 'control station breaker'; this breaker appears to feed power to a centralized fuse block mounted behind the helm. This breaker is found to be working properly (probed both sides to negative terminal on battery and found 24v when breaker closed, 0v when opened.
On the fuse panel behind the helm, I probed the 24v terminal that should be supplying all the components, and the negative post on battery, and found I have 24v there.
probed negative terminal on fuse block and negative terminal on battery for continuity, and saw no continuity there. The Negative terminal leads back to what is referred to on the same schematic as the "Main DC Negative Bus".
At this point, I'm trying to find something that looks like the "Main DC Negative Bus" to further trace back where continuity drops and where it picks up, to locate what at the moment seems to be a grounding problem on the fuse block
has anyone else had this problem? Any idea where this DC main bus is? or should I be looking elsewhere?
Had marina service the boat (oil change, lower unit svc etc) before storing for the winter in heated storage. put two new batteries into boat this year. Discovered electrical problem. Here is the problem and all the observations I've made since:
Problem: engine starts, but blower/water pump/all lights/radio/digital readout on dash doesn't come on.
Checked a 50A breaker that, on page 25 of the 2011 owner's manual refers to as a 'control station breaker'; this breaker appears to feed power to a centralized fuse block mounted behind the helm. This breaker is found to be working properly (probed both sides to negative terminal on battery and found 24v when breaker closed, 0v when opened.
On the fuse panel behind the helm, I probed the 24v terminal that should be supplying all the components, and the negative post on battery, and found I have 24v there.
probed negative terminal on fuse block and negative terminal on battery for continuity, and saw no continuity there. The Negative terminal leads back to what is referred to on the same schematic as the "Main DC Negative Bus".
At this point, I'm trying to find something that looks like the "Main DC Negative Bus" to further trace back where continuity drops and where it picks up, to locate what at the moment seems to be a grounding problem on the fuse block
has anyone else had this problem? Any idea where this DC main bus is? or should I be looking elsewhere?
