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 and the cable is in contact with bare metal, you will need to repair the cut with electrical tape. If there is no problem with the cable, disconnect the transducer from the unit and see if the prob- lem is 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 take several tries to optimize high-speed operation. This can also be a result of air or turbulence in the transducer location caused by rivets, ribs, etc.

7. My unit loses power at high speeds.

Your PiranhaMax has over-voltage protection that turns the unit off when input voltage exceeds 20 VDC. Some outboard motors do not effec- tively regulate the power output of the engine’s alternator and can produce voltage in excess of 20 Volts when running at high RPMs.

8. The display begins to fade out. Images are not as sharp as normal.

Check the input voltage. The PiranhaMax will not operate on input voltages below 10 VDC.

9. The display shows many black dots at high speeds and high sensitivity settings.

You are seeing noise or interference caused by one of several sources. Noise can be caused by electronic devices. Turn off any near- by electronics and see if the problem goes away. Noise can also be caused by the engine. If engine noise is causing the interference, the problem will intensify at higher RPMs. Increase the engine speed with the boat stationary to isolate this cause. Propeller cavita- tion can also appear as noise on the display. If the transducer is mounted too close to the propeller, the turbulence generated can interfere with the sonar signal. Make sure that the transducer is mounted at least 15" (380 mm) from the propeller.

International Purchases

A separate warranty is provided by international distributors for units purchased outside the United States. This warranty is includ- ed by your local distributor and this distributor maintains local service for your unit. Warranties are only valid in the area of intend- ed distribution. Units purchased in the United States or Canada must be returned to our factory in the United States for service.

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Humminbird PIRANHAMAX10, PIRANHAMAX20 warranty Get gaps in the reading at high speeds, My unit loses power at high speeds
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PIRANHAMAX10, PIRANHAMAX15, PIRANHAMAX20 specifications

Humminbird's PIRANHAMAX series, specifically the PIRANHAMAX 20 and PIRANHAMAX 15, represents a captivating blend of technology and practicality designed for fishing enthusiasts. These fish finders are renowned for their user-friendly features and powerful imaging capabilities, making them ideal for both novice and experienced anglers.

Starting with the PIRANHAMAX 20, this device boasts a 4.3-inch color display that ensures clear visibility under various lighting conditions. It comes equipped with Humminbird's DualBeam PLUS sonar technology, providing anglers with versatile beam angles for targeting fish at varying depths. With a maximum depth capability of up to 600 feet, users can explore deeper waters and increase their chances of finding the perfect catch. The built-in fish alarms and GPS capabilities allow for real-time tracking of fish locations, enhancing the fishing experience significantly.

The PIRANHAMAX 15, on the other hand, features a slightly smaller yet impressive 3.5-inch color display. It also utilizes DualBeam sonar technology but features a narrower beam angle, making it perfect for shallow waters and pinpointing fish hiding in structured environments. This device is tailored for those who prefer simplicity without sacrificing functionality. It also enables anglers to easily identify bottom contours and track their fishing performances through a user-friendly interface.

Both models are designed with portability in mind, making them suitable for various boating styles and transport setups. They are equipped with simplified menus and controls, allowing anglers to quickly adapt and operate the devices without the need for extensive instruction.

In addition to their outstanding imaging capabilities, both the PIRANHAMAX 20 and 15 are weather-resistant, ensuring durability against the elements encountered on the water. Their lightweight construction also makes them easy to mount or carry, catering to the needs of mobile fishermen.

In summary, Humminbird’s PIRANHAMAX 20 and 15 offer essential features, advanced sonar technologies, and user-friendly interfaces that cater to a wide array of fishing preferences. Whether you are exploring deep lakes or cruising coastal shores, these devices deliver reliable performance and valuable insights to enhance your angling adventures. With their sleek designs and high-quality imaging, the PIRANHAMAX series stands as a reliable companion for any fishing trip.
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