Depth sensor BEEPING

[SLX 280 Bob]

Anyone with the same issue? My depth sensor is very erratic and when it reads below the minimum depth it beeps. Driving me crazy!
It's the sensor built into the dynamic display from SeaRay.
Can't turn off the alarm. Is there a part somewhere on the boat that reads the depth? Can it be replaced?
Thanks

 

[hottoddie]

There must be a way to reset the alarm depth. What depth is it alarming at now?

 

[SLX 280 Bob]

3.5' but the gauge bounces from 1.5 to the actual depth of say 11' so it beeps. It will stop for a while and read the correct depth but then goes back to crazy readings.

 

[CmpCAW]

3.5' but the gauge bounces from 1.5 to the actual depth of say 11' so it beeps. It will stop for a while and read the correct depth but then goes back to crazy readings.

 

[CmpCAW]

Same issue. Any resolution?

Our 2004 Sundeck 240 is on a lake. Lake levels are lower than usual. SmartCraft depth alarm sounds as soon as we start the engine (in about 3 ft of water) and lasts for 2-3 minutes, even when we are in deeper water (10 ft). Accessed the CAL 2 screen (as per SmartCraft manual) and lowered the depth sensor to 0 ft. Alarm still goes off. Called Mercury and their suggestion was to just keep playing around with the Depth Sensor and also the Depth Offset. Even with the sensor set at 0 ft, alarm wound beep for 2-3 minutes. We know the lake well and have a separate fishfinder with depth, so we don't need the alarm. We couldn't find any setting for alarm ON/OFF. Is there any way deactivate the alarm? Since the alarm goes off even at 0 ft, do we have a problem somewhere in the entire depth function (transducer, software, etc)?