Electrical issue?

[jdjetboater]

Running an 01 ls2000 and while out I noticed the bilge pump and fan stopped working. Lights worked, radio worked, but no fan or pump. At first thought it was a fuse and since I had none on board, we called it a day and headed in. Checked the fuses and they are not burned out. What else could cause just those to aux items to not work?

 

[WREKS]

Probably dumb question. Have you tried to reset breakers on the console?

 

[jdjetboater]

Yes. checked all fuses and they’re still in tact

 

[WREKS]

What about ground connections for those devices?

 

[Julian]

Battery connections tight?
Circuit breaker not tripped (not fuse)?
Main accessory fuse blown (by the battery)?

 

[jdjetboater]

Circuit breaker? Yes on tightened terminals and Main fuse is good. Thanks and keep suggestions coming. It’s Wednesday and the lakes calling.....

 

[WREKS]

So everything with a motor is not working? You could check if you voltage going to each one. Perhaps they are on the same ground. Maybe fix one fixes all.

 

[jdjetboater]

The control knobs light up on the bilge and fan switch, wouldn’t that indicate power? Not sure where or how to trace the grounds. Somehow they are tied together though.

 

[the MfM]

The fan is easy to get to...do you have a volt meter?

 

[jdjetboater]

Yes I do

 

[WREKS]

You can look at grounds at the battery. Wiggle them a little. See if anything changes. Disconnect and reconnect some of the connectors. Seems like something is corroded.

 

[the MfM]

Yes I do

Then I’d say check to see if you have 12v between the positive and negative at the fan when the switch is on.

 

[jdjetboater]

No corrosion, all wiring seems to be connected. Found where the blower is but it looks like a duct with a mounted plastic connection, not really a blower motor as I imagined. How about the bulge pump? Wher and how do I get to that. Checking with OM but it’s vert generic.

 

[WREKS]

Blower is inside duct. There should be a connector. Disconnect and test voltage at connector going to blower as MFM suggested. If you have 12 volts, your good, otherwise you have an open ground. Please, report back.

 

[jdjetboater]

Problems resolved.

When I started, I had no bilge and no fan. Both stopped working simultaneously Nd one would think they were related; they were not.
Working to resolve fan first, bc I had no idea where the bilge was. I Checked all fuses; good. Checked battery connections, minor corrosion and slightly loose; wire brushed And secured to post. Found the fan with help o MFM and WREKS. Took it completely loose from the ducts and found a piece of cardboard wedged between the fan and fan housing. Removed the wedge and it works as it should; 12v and humming.
In the process of looking for the fan, I pulled the eng compartment outlet vents and the clean out compartment and exposed a whole lot, specifically the bilge pump. It somehow had worked itself loose, fell over and I suppose doesn’t work when out of position ? I resecured the pump and it worked.
Good experience and it exposed many of the inter workings of the boat. Hope this was/is helpful to someone else. Thanks to all that made suggestions, I hope to get to pay it forward.
Now to clean up what I can, put it back together and get back on the water. Happy Boating all!