I'd start by making sure battery is fully charged and good connection, that's when mine seems to have the most problems, then maybe try finding a transducer to borrow to see if that fixes it. Last but not least is sending the unit in, there customer service department is excellent!!! I had to get a new motor in mine a couple winters ago and for around $80 I was back fishing in about a week.
Good Luck

posted using Outdoor Hub Campfire

 

Seem to have the same problem. Seem to be always messing with my gain at first, like it needs to warm up or something, which make no sense. Seem every time I go out ,fishing the same spot, my gain is set differnt.

Sent from my SPH-L720 using Ohub Campfire mobile app

 

Its most likely your transducer is failing, i upgraded from the standard 19 degree to the tri beam ducer on my fl8 slt and love it.

 

them are battery issues... your battery may show a full charge but don't hold one for very long... Start cheep and get a new battery... then if that don't work then its the transducer...
[ame="http://www.ebay.com/itm/UPG-12V-9AH-12-volt-Sealed-BATTERY-Fits-Aqua-Vu-Marcum-Vexilar-UB1290-Replacem-/130728830963?pt=US_Rechargeable_Batteries&hash=item1e700ba7f3"]http://www.ebay.com/itm/UPG-12V-9AH-12-volt-Sealed-BATTERY-Fits-Aqua-Vu-Marcum-Vexilar-UB1290-Replacem-/130728830963?pt=US_Rechargeable_Batteries&hash=item1e700ba7f3[/ame]

[ame="http://www.ebay.com/itm/VEXILAR-MARINE-19-DEGREE-SINGLE-BEAM-ICE-FISHING-TRANSDUCER-TB0050-/161213856973?pt=LH_DefaultDomain_0&hash=item2589183ccd"]http://www.ebay.com/itm/VEXILAR-MARINE-19-DEGREE-SINGLE-BEAM-ICE-FISHING-TRANSDUCER-TB0050-/161213856973?pt=LH_DefaultDomain_0&hash=item2589183ccd[/ame]

 

It is a classic symptom of a battery failing.


Go to TSC and buy a new one for $20. Then you're good to go!

 

I agree with the battery comments

 

How long do those batteries last? I bought a new one about two seasons ago and use the old one and the new one in rotation and the problem seems to be the same with both batteries. Also, it doesn't seem to matter if there is a full charge or not.

 

Otherwise just call them they are very helpful over the phone. I have also posted questions on their websites forums and they usually respond pretty fast. Their forums are open to the public also, but a vexilar pro staff will also answer most questions.

http://vexilar.com/

 

How long do those batteries last? I bought a new one about two seasons ago and use the old one and the new one in rotation and the problem seems to be the same with both batteries. Also, it doesn't seem to matter if there is a full charge or not.

Maybe your charger is shot.

 

had the same exact issues it was the puck/transducer, mine you could jiggle the wire/puck and it would react so i knew what it was, i run my batts till there almost totally dead and can still read/see lure, those cheap batts dont last but a year if your lucky, i buy heavy the duty 1s like moultry feeders, charge last way longer and so does the batt's life, after i got the new transducer i couldnt beleive how good i could see my lure and bottom, as in the lure dont disapear in the bottom red zone no more!! showed me how bad my puck was

 

I was having similar problems with mine and although it seems like a battery problem I verified my charge with a good volt meter and voltage was ok. I went ahead and ordered the tri beam transducer and it's working better than it ever has.

 

Battery mine did same thing went to gander mt payed14 dollars for a new battery and it works fine