20 Most Recent Humminbird 343c Fishfinder GPS Receiver Questions & Answers

i have the same model same problem. i rehooked it up and now when i slide the base onto the reciever it beeps once then 3 times and i press the power button and nothing happens.. did you ever get help ????????

Hi!
If the unit shuts off on its own, firstly check your power supply. I keep seeing customers running their ssounders from a small, portable battery configuration that doesn't put out the correct voltage...mostly seen with AA size batteries being rated at 1.2 or 1.3 volts (8 batteries times 1.2 volts is only 9.6 volts).
If the power supply is not the issue then I would say the internal power circuit is suspect...this can only be repaired by a competent repair person who knows how and what they are doing. If you open the unit up, you'll not only void the warranty, you run the risk of killing the entire unit from static shock.
Best of luck in your repair!
Mike

I've got the 565 and everything will be working fine and then the depth finder or bottom of the lake goes to 6ft. Have to shut it off for an hour and it works for a wile but it always goes back to doing it anything I can do? Thanks Jeff

print users manual for Humminbird Pironha Max 160 Fish go to this link http://store.humminbird.com/media/document/PiranhaMAX_150-160-170-180-190c.pdf