Troubleshooting

Do not attemptto repairthe PiranhaMAX™yourself.There areno user-serviceable parts inside,and special tools and techniquesare requiredfor assemblyto ensure the waterproof integrity of the 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 problem with yourPiranhaMAX™, use the followingtroubleshootingguidebefore calling the Customer Resource Center or sending your unit in for repair.

1.Nothing happens when I turn the unit on.

Check the powercable connectionat both ends. Be sure thecableis connected correctly to a reliable power source — red lead to positive, black lead to negative or ground. Ensure the power available is between 10 and 20 VDC.

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 the contactson the back of the unit to ensure there is no corrosion.

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”, make sure that an appropriatetransducerconnector is plugged intotheunit.In addition,inspectthetransducercablefromendtoendforbreaks, kinks,or cutsin theoutercasingof the cable. Also make surethat the transducer is fully submerged in water. If the transducer is connectedto the unit through a switch,temporarily connectit directly to the unitandtryagain.If noneof these actionsidentifies an obvious problem,the transduceritselfis probably at fault. Be sure to include the transducer if returningthe unit for repair.

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