Do not attempt to repair the PiranhaMAX yourself. There are no
Many requests for repair receivedby Humminbird® involve units that do not actually need repair. These units are returned “no problem found.” If you have a problem with your PiranhaMAX, use the following troubleshooting guide before calling the Customer Resource Center or sending your unit in for repair.
1.Nothing happens when I turn the unit on.Check the power cable connection at both ends. Be sure the cable is 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. If the unit is wired through a fuse panel, ensure the panel is powered. Often accessory fuse panels are controlled by a separate switch or the ignition switch.
Also, often a fuse can appear to be good when it is not. Check the fuse with a tester or replace it with a fuse known to be good.
Check the power connectionto 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 contacts on 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 appropriatetransducer connector is pluggedinto 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 connectedto the unit througha 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.
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 PiranhaMAXInstallation 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, make sure that the switch is in the correct position to connect a transducer that is in the water.(If a trolling motor transducer is selected and the trolling motor is out of the water, no sonar information appears.) If none of these actions solves
Troubleshooting | 64 |