Question about Boating
I installed my new fishfinder on my 22ft pontoon. I installed transducer on mount that comes on the pontoons for fishfinder. It is installed just like the instructions. My problem is the depth reading is not correct and temp reading stays at 55 and does not vary. It does not show any details for bottom or structure. I have gone through menu settings several times and tried all settings, Please help.....
Jerry from S.C.
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Posted on Jan 02, 2017
SOURCE: Hummingbird Fishfinder model 535
The Depth & temp come from two different sensors. Check your coax cable to the transducer (the lager oval piece), the connector, and the transducer for cracks /breaks in insulation. Good luck.
Posted on Oct 28, 2008
Had the same issue with another brand. Turned out the transducer cable was picking up noise from other cables (power, trolling mtr. etc). Try moving the transducer cable away from any other cables. I put the cable in a 1/4 " plastic housing up to the point where it was above deck and it stopped all the strange stuff. Not sure about the temp issue??
Posted on Jul 21, 2009
Yes quite possibly... But a few things to try/check first before you go out and get a new transducer...
1. Ensure the transducer is fully submersed below the waterline when floating and when on the plane... try lowering it more if you can.
2. Check the surface of the transducer itself (the underside) pointing down... If there are any minor scratches or scuffs, this can effect its function or performance. Minor scratches or marks can be sanded out with fine wet/dry sandpaper (at least 400 or 800 grit).
3. Isolate any electrical wires running near or next to the transducer cable. Also check connection of cable at head unit, and that the pins etc are clean, free of corrosion and making good contact.
4. Take your head unit to your Lowrance dealer and they may have a transducer there to use to diagnose whether it is indeed the trasnducer or a problem with the head unit.
Posted on Aug 01, 2009
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