• GUESTS

    If You  want access  to member only forums on FM, You will need to Sign-in or  Sign-Up now .

    This box will disappear once you are signed in as a member.

  • WE CREATE LONG TERM, MEANINGFUL RELATIONSHIPS IN HERE ... PLEASE JOIN US.

    You know what we all love...

    RECEIVE THE GIFTS MEMBERS SHARE WITH YOU HERE...THEN...CREATE SOMETHING TO ENCHANT OTHERS THAT YOU WANT TO SHARE
    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

  • 0
Sign in to follow this  
harvey lee

Humminbird 998si power issue

Question

harvey lee

Friend of mine put this unit on his boat this spring.

Everything worked fine but now, when he has the unit on and starts the outboard, the Bird unit shuts down. Once the motor is running, he can unplug the unit, plug it back in and it works great until he shuts the motor off. Then when he restarts the outboard, he has to unplug the unit again to get it to power up.

I should not say the unit turns off but it goes from a screen with info to only black lines through the screen. Then reboot it while the motor is running and all is well again. Seems like a lack of voltage while the motor starts as in to much draw for the outboard with a weak battery status.

I looked in his manual and it said the unit needs 10 volts to operate.

My question is, if he has a battery that is under power or say a bad cell, could the starting of the outboard draw so much that there is less than 10 volts to the bird unit so it shuts down?

He has the unit hooked up to his battery that runs everything else in the boat including the outboard motor. The starting battery in the boat is 12 years old.

I told him I would check the voltage to the unit when he starts the outboard to see what there is for power to the unit while it is on. I also suggested to have the battery load tested to see if it is a weakened state.

Anything else I could check or am I looking in the right place for the issue?

Thanks

Share this post


Link to post
Share on other sites

13 answers to this question

Recommended Posts

  • 0
MN Mike

My 798 did that in my boat from the beginning, exactly as you describe. I put new batteries in and it hasn't done it very often now.

After the first couple times it did it, I just learned not to start my electronics until the motor was running although that doesn't help when you're out on the lake starting and stopping your motor.

Mike

Share this post


Link to post
Share on other sites
  • 0
reddog

Voltage drop. Check and clean all connections. Bring up the voltage in the view and see how it reacts to turning the key on and starting

Share this post


Link to post
Share on other sites
  • 0
B-man715

Starting battery is 12 years old......????? hmmmm....... I wonder what the problem is? blush

Share this post


Link to post
Share on other sites
  • 0
harvey lee

He had the battery load tested this spring and it was fine then, not to say it could not have lost a cell since then though. He has only used the boat twice since then so he did not believe the battery was the culprit.

I told him I would have it load tested again.

Share this post


Link to post
Share on other sites
  • 0
h8go4s

Seriously? I wouldn't even consider having a 12-year old battery tested. Replace it. Now.

Share this post


Link to post
Share on other sites
  • 0
harvey lee

Well, he does not fish that much and why purchase a new battery if you do not need one?

I would agree the battery is more than likely the culprit but like I said, It was load tested just fine a few short months ago.

Share this post


Link to post
Share on other sites
  • 0
highlife4me

I would check the voltage at the unit while the motor is being turned over. Could be he has an excessive length of wire or too small of gauge wire and the voltage is dropping below 10 volts while motor is cranked over.

Share this post


Link to post
Share on other sites
  • 0
TruthWalleyes

If i run my starter battery very low i can make my radio and other electronics blink when i start the motor - that takes me about 3 days of solid fishing for me to get the battery that low. Did he do a load test of his 12yr old battery?

If all symptoms tie to the starting of the outboard, and we know that draws some major amperage, i would change the battery as it is most likely the culpret.

Also, make sure the voltage is displayed on the screen when you start it next time, the drop should be noticable right before the unit shuts off.

Share this post


Link to post
Share on other sites
  • 0
BLACKJACK

My starting battery was low this weekend, accidently had one of the navigation light switches on, when I turned on the Humminbird it came up with a low voltage message and shut itself down.

Share this post


Link to post
Share on other sites
  • 0
TSchultz

Often times if he has the bird hooked up through a fuse block or similar underneath the dash the boat mfg will not have heavy enough wiring feeding it and when you go to start the battery it will drop the voltage enough that the unit will shut down. If the battery is good wire the unit directly to the battery. Problem solved.

Share this post


Link to post
Share on other sites
  • 0
bowhunternw

Mine does the same thing, when the battery connections are less than perfect. Clean them up good and that fixes it.

Share this post


Link to post
Share on other sites
  • 0
Cheers

I had similar issues with a Lorance . Problem turned out to be wrong size battery . I had gone to the auto parts store and bought a new starting battery and didn't know enough to pay attention to the specs of the battery. It had 650 CCA . My optimax needs 1000CCA to satisfy the electronics on the motor and the new battery couldn't put it out thus causing a voltage drop and therefore causing the fish finder to shut off. I got a stronger battery and the problem was gone !

Share this post


Link to post
Share on other sites
  • 0
PerchJerker

I had an annoying power issue affecting my graphs the first year I had a new boat. It wouldn't happen very often, but occasionally when I was flying across the lake all my graphs would shut off at the same time for no apparent reason. I checked and rechecked and re-rechecked everything multiple times. Nothing.

I eventually realized it was only happening in rough water when the boat was bouncing around a lot, but I still couldn't figure out the problem.....

One time when they shut down I finally noticed that the oil reservoir for my Opti had moved a bit. It was still in its bracket but it was less than 1/2 full of oil and had shifted positions a little. I pushed and pulled on the reservoir tank and noticed there was enough play to BARELY brush against the main power breaker.

The main power breaker had never tripped, but too make sure the oil reservoir couldn't touch the breaker I wedged a pair of sandals between the oil reservoir and the wall where the breaker was mounted. Voila' .... no more graph shutdowns!

After running it that way for a couple months with no more problems I remounted the oil reservoir to the other side of the compartment and got my sandals back.

It shows how touchy and sensitive these electronics and boat wiring systems can be .......

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

Announcements



  • Your Responses - Share & Have Fun :)

    • eyeguy 54
      I like the stretch upriver better but can only drift down that area.  I would wear my arms out traveling up stream!   Hopefully do a drift down soon.  
    • jhousenga
      59 crossing Daisy Bay Friday night. 67 in Big Bay this afternoon.
    • monstermoose78
      The stearms in the arrowhead are small very small I would recommend a 6 foot or short rod for most streams as you will be pitching your bait out. They are also over grown with brush wading these streams is a challenge. You will be fishing for mostly brook trout above the first posted boundary FYI it’s normally a large water fall but not always. Also the first week of June there will not be much from the lake to the first posted boundary anyways. Remember there special regs below the first posted boundary and the above the first posted boundary.  If you want to use your fly rod I would hit the small trout lakes in the area. A split shot and small chunk of crawler is my go to bait for Brookies. There are a few streams with some browns and rainbows but very few. If you are fly fishing look at Thompson lake by  devilstrack lake it’s catch and release. Mink lake, kimball lake are also good. 
    • Squirrelhawke
      Growing up in South Dakota I did quite a bit of fishing in the black hills for browns and rainbows, most of that fishing was best accomplished with a long pole and just drifting my bait down the stream if you can read the eddies and slacks in the water you should do fine.  Of course I'm assuming they bite the same up north as they do out west.  It was a kick when I went  back out there 2 years ago and on Sunday morning fished the little 6 ft wide stream running behind the campground, all the other campers were amazed that I would pull out a fish about every 20-30 ft no monsters but plenty of little beauties at 7-10 inches. If the water is clean and the fish are there you just gotta find out what they are eating at that time of year.  Hopefully this helps and if I'm wrong some of the guys with Minnesota experience will pipe up. 
    • Squirrelhawke
      I do a bit of fishing from the coon rapids dam on down to 694 and I usually bring 2 rods because I lose at least one lure to the rocks. Bear that in mind and also realize that there are nice smallies, eyes and cats in that stretch of river. I also had over 3 feet of pike eat my stink bait I had out for channel cats. If I didn't have a circle hook on it would have been a nice pic to share. Good luck and hope to hear of some good luck. 
    • delcecchi
      It would take a lot of code to make multiple windows tiling the screen work, would be my guess, and would create few additional sales so isn't worth the expenses.    Just pick up an inexpensive 5 to 7 inch unit and use it for the map.   
    • Wanderer
      You look like the Phantom Fisherman - except the toes.  Or maybe the River Detective  🕵️‍♂️ Gotta love those good runs in short times!   
    • Bryan P
      Awesome Eyeguy! That is a good run of smallies there. I like your spot, that was my favorite fishing stretch for them when I lived in St cloud. Mississippi is such a great smallie fishery. Im blessed to live right next to it too. Now lets get the current to go down some! 
    • eyeguy 54
      I LOVE SMALLIES !  LOL  I am blessed to live close to so much fun. 
    • pikeandchester
      Spent a couple hours on Elysian this afternoon.  Drove around some shallow areas on the south east end of the lake with the trolling motor and only saw carp. Water is still unusually clear for this lake, at any time of the year, and 79 degrees near shore. May be a great opportunity for a bow fisherman, even in the daylight. Tried soaking minnows in a hole on the north end with no luck.