So I'm in the process of getting the boat ready for the spring, and today after I changed the spark plugs on the boat, I decided to start it up and check to make sure everything was running correctly. I turned on my blower fan before I started the boat, and it came on then died after a few seconds. Also, now my nav lights and bilge pump won't turn on. The boat is charged, as I did start up both motors to make sure they were running. I checked all the 20 amp fuses under the hood compartment and they are all fine.... Any ideas of what's causing this????