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Troubleshooting
Do not attempt to repair the PiranhaMAX™ yourself. There are no
user-serviceable parts inside, and special tools and techniques are required
for assembly to ensure the waterproofintegrity ofthe housing.Repairs should
be performed only by authorized Humminbird technicians.
Many requests for repair received by Humminbird® involve units that do not
actually need repair.These units are returned “no problem found.” If you have a
problemwithyourPiranhaMAX™,usethefollowingtroubleshootingguidebefore
callingthe CustomerResource Center or sending your unit in forrepair.
1. Nothing happens when I turn the unit on.
Checkthepowercableconnectionatbothends.Besurethecableisconnected
correctly to a reliable power source — red lead to positive, black lead to
negative or ground. Ensure the power availableis between 10 and20 VDC. If
the unit is wired through a fuse panel, ensure the panel is powered. Often
accessoryfusepanelsarecontrolledbyaseparateswitchortheignitionswitch.
Also,oftena fusecanappear tobe good whenit is not.Check the fuse witha
tester or replace it with afuseknown to be good.
Check the power connection to the PiranhaMAX™. It is possible to force the
power cable connector into the cable holder incorrectly. If the connector is
reversed, the unit will not work. Examine thecontacts on the back ofthe unit
to ensure there is nocorrosion.
2. There is no transducer detected.
The PiranhaMAX™ has the ability to detect and identify that a transducer
is connected. When powering on, if a message indicates “transducer not
connected”,makesure thatan appropriate transducer connector is plugged
into the unit. In addition, inspect the transducer cable from end to end for
breaks, kinks, or cuts in the outer casing of the cable. Also make sure that
the transducer is fully submerged in water. If the transducer is connected
to the unit through a switch, temporarily connect it directly to the unit and
try again. If none of these actions identifies an obvious problem, the
transducer itself is probably at fault. Be sure to include the transducer if
returning the unit for repair.
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