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Troubleshooting

FISH HAWK TROUBLESHOOTING SCENARIOS

Problem
Possible Cause
Possible Solutions

No probe data appears on the display Video

 No probe power

Inspect AA batteries and battery pack. Battery pack connector should be adhered to the inside of the probe. Double check proper battery polarity of all four batteries. Battery pack replacement video

 

Probe is out of the water

The probe only transmits when in the water 

 

The transducer is not mounted or positioned correctly Video

Locate the transducer in a spot on the transom where prop wash is minimal. Do not locate the transducer near a kicker motor or lower unit. The transducer should be parallel with the surface of the water at the bottom of the hull.

 

The GAIN adjustment is too low

The default GAIN setting is 15. Increase the GAIN in deep water, rough water, when tolling faster, or when using downrigger weights less than 12lbs. 

 

The sending unit inside the probe has failed 

View this video to determine if the sending unit is working, or try your probe on another boat with a Fish Hawk or vice versa. Unfortunately, there is no way to repair the sending unit, the probe must be replaced. Please complete the Service Request Form

 

Probe is upside down

Probe should be attached so the paddle wheel is on the bottom

 

Probe is too close to the boat

Probe should be at least 5-feet under the transducer

The probe temperature shows approximately 3.8° Video

Probe temperature sensors have been damaged

Unfortunately, there is no way to repair the damage, the probe must be replaced. Please complete the Service Request Form

Probe readings on the display are erratic or intermittent 

Sonar interference 

Turn off fish finder to verify, then set your fish finder to run at 200 kHz rather than 50 kHz or 83 kHz. Separate transducers on the transom if practical.

 

The transducer is not mounted or positioned correctly Video

Locate the transducer in a spot on the transom where prop wash is minimal. Do not locate the transducer near a kicker motor or lower unit. The transducer should be parallel with the surface of the water at the bottom of the hull.

 

The GAIN adjustment is too low

The default GAIN setting is 15. Increase the GAIN in deep water, rough water, when tolling faster, or when using downrigger weights less than 12lbs. 

Probe speed seems unrealistic  

Calibration offsets have been over adjusted calibration discussion video

Return display to factory default settings Restore defaults video

Surface speed not accurate

Transducer location 

The Fish Hawk display typically shows faster surface speed than SOG. It can be calibrated, but most anglers simply rely on GPS SOG for surface speed. By design, the Fish Hawk display won't show speeds faster than 11 MPH accurately.

Display won't turn on

The 1-amp in-line fuse is broken

Replace the 1-amp fuse found near the end of the power cord

The display buttons do not respond

Membrane switch has failed

Replace membrane switch. Please complete the Service Request Form

Display backlight flashes continually 

Membrane switch has failed

Replace membrane switch panel. Please complete the Service Request Form

The GAIN value  is scrolling without pressing an arrow key

Membrane switch has failed

Replace membrane switch panel. Please complete the Service Request Form

The Fish Hawk Display turns off when the outboard is running

Electrical interference from mid-range Mercury outboard motor produced between 1990 and 2002 

Replace the standard spark plugs with suppressor (resistor) spark plugs Spark Plug Reference Chart