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3. There is no bottom reading visible on the display.
If the loss of bottom information occurs only at high boat speeds, the
transducer needs adjusting – see your PiranhaMAX™ Installation Guide for
details. Also, in very deep water, it may be necessary to increase the
sensitivity setting manually to maintain a graphic depiction of the bottom. If
you are using a transducer switch to connect two transducers to the
PiranhaMAX™,makesure that the switchis in the correct position toconnect
a transducerthat isin thewater.(Ifa trolling motortransduceris selected and
the trollingmotor isoutof the water,nosonarinformation appears.)If noneof
theseactionssolvestheproblem,inspectthetransducercablefromendtoend
for breaks, kinks, or cuts in the outer casing of the cable. If the transducer is
connectedtotheunitthroughaswitch,temporarilyconnectitdirectlytotheunit
and try again. If none of these actions identifies an obvious problem, the
transduceritself may beat fault.Be sureto include thetransducer ifreturning
the unit for repair.
4. When in very shallow water, I get gaps in the bottom reading and
inconsistent digital depth indication.
The PiranhaMAX™ will work reliably in water 3 feet (90 cm) or deeper.
Remember that the depth is measured from the transducer, not from the
surface ofthe water.
5. The unit comes on before I press the POWER-MENU key, and won’t
turn off.
Check the transducer cable — if the outer jacket of the cable has been cut
andthecableisincontactwithbaremetal,youwillneedtorepairthecutwith
electricaltape.Ifthereisnoproblemwiththecable,disconnectthetransducer
fromthe unit and seeif the problemis corrected, to confirm the source of the
problem.
6. I get gaps in the reading at high speeds.
Your transducer needs adjusting.If the transducer is transom-mounted, there
are two adjustments available to you: height, and running angle. Make small
adjustments and run the boat at high speeds to determine the effect. It may
takeseveraltriestooptimizehigh-speedoperation.Thiscanalsobe aresultof
air or turbulence in the transducer locationcaused byrivets, ribs, etc.
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