magna 6882
Guru
- Joined
- Apr 20, 2020
- Messages
- 716
- Location
- USA
- Vessel Name
- Intrepid
- Vessel Make
- North Pacific/ NP-45 Hull 10
I hired an outfit to wax the boat for the winter. I think they were using the boats 120 power for there buffers and tripped the shore power ground fault. This caused the boat to run off inverter. When a got to the boat to check on the work and pay them i found the boat dead with 4.4 volts. I set the breaker and got 120 to the boat but there wasn't enough voltage to even trigger the inverter to charge or send the 120 through so we unloaded the fridge and threw out the food and put the battery's on a charger .Went back the next day and had dc voltage and the inverter could see the batterys and passed an 120 and started charging. I couldn't start the engine as it was dead but batterys were good. Turned out to be the sea fire engine shut down. The sea fire unit had voltage but the power light was off. Tried to pull the fuse and recycle the unit but upon further investigation the unit has 2 power supply's so I manually pulled the power and re connected and the power light came on and the engine could now be started.
I wanted to post this because if you have the sea fire system on your boat you should get familiar with the system because if the system fails when it not warranted you will find yourself with a non running boat. There are three relays controlling the generator,engine and blowers. I think there needs to be a manual over ride. I believe the low voltage caused the unit shut down requiring a reboot. After 2 days on the the boat i seem to have everything working but one camera is dead. It may be a power problem.
I wanted to post this because if you have the sea fire system on your boat you should get familiar with the system because if the system fails when it not warranted you will find yourself with a non running boat. There are three relays controlling the generator,engine and blowers. I think there needs to be a manual over ride. I believe the low voltage caused the unit shut down requiring a reboot. After 2 days on the the boat i seem to have everything working but one camera is dead. It may be a power problem.