Marine Electronics Forum - Garmin 168 freezing up

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ngleo

06-04-2007, 08:03 PM

I have a Garmin 168 sounder and the last time I was out it kept freezing up for a few seconds every half minute or so. The screen looked normal and I would never have known anything was wrong except I have it hooked up to a Navman fuel flow meter and that kept zeroing out. When it did I noticed the numbers on the Garmin like the speed stayed the same until the Navman regained it readings. What could be wrong?