Hawkeye D10D Depth Finder only reads 0.0ft

[ksstang]

So on my Baja I have a Hawkeye Depth finder model D10D. I've had the boat right at a year now and ever since we bought it the depth finder doesn't work on it. It is on one of my accessory switches and when you turn it on it does the normal two beep test, followed by the dash lines, then just reads 0.0ft. I noticed the sensor in the back and can hear it making the ticking noise that Hawkeye says it should when its operating normally. I'm just curious what could be going on with it, and if I just need to purchase a new one altogether.

 

[Bayou Dave]

Is the keel offset set? If so it might be set so high that any depths you are in shows 0.00 feet to bottom. This is from my D10D manual.
KEEL OFFSET
The Keel Offset feature is used to
adjust the depth readings
displayed by the device to
compensate for the depth of the
water required for your vessel to
operate safe (typically referred to as your vessel?s ?Draft?)
For Example: If your boat?s draft is 3 feet, the Keel Offset feature should be set
to 3 feet. The device will then subtract 3 feet from the actual depth reading and
display this figure as the depth. If the water depth is 5 feet and the Keel Offset is
set to 3 feet, the depth will be displayed as 2 feet, indicating to the operator that
there is 2 feet of safe operating water.
The maximum Keel Offset setting is 20 FT (6.1 M), and can be set in .1 (1/10th)
Feet or Meter increments. The unit will read ?---? when a negative value occurs
due to the Keel Offset subtraction.
WARNING: To set the Keel Offset:
1. Press and hold the "UP" and ?DOWN? keys
until the K/O indicator begins to blink.
(approximately 6 seconds).
2. Release the Keys.
3. Press the "UP? key to increase the Keel Offset
value. Press the "DOWN" key to reduce the
value.
4. The display will return to the normal operation
mode after five seconds if no keys are pressed.
5. ?K/O? will remain illuminated in the top left hand
corner indicating that the depth readings are
adjusted to the Keel Offset setting.