*Power on the unit ...
*Press Menu at the HB splash screen ...
*Choose "System Status" from the 3 choices in the popup ...
Does it show "Transducer Connected" ...??
If it shows the transducer as "Not Connected" ... You have 2 options ...
1. Cross test with another xducer or head unit ...
2. Call HB to see about getting another xducer ...
1-800-633-1468
Rickie