- The depth is less than 2.5 feet or greater than 200feet. Operate the unit under normal operating specifications and check to see if it is operating properly.
- If this condition occurs only at certain speeds, then a transducer adjustment is needed . Refer to the transducer installation instructions for adjustment procedure.
- Under certain circumstances the DF1000D may not perform at the best of it’s ability. Extremely dirty water, very soft bottom, high speeds, deep water, or a combination of the above will result in incomplete or inaccurate readings. Please refer to the transducer installation instructions to minimize the effects of these conditions.
- Check the transducer cable connection on the back of the unit. Make sure that the connection is made as per the instructions in the transducer wiring section of this manual.
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