My screen is on, but there isn't any sensor information...depth etc coming on.

mainboard problem

the codes started with 11 i presume they refer to bank 1 &2 oxygen sensor ,follow this link for in depth advice etc
Oxygen Sensor Codes Avoiding The Common Pitfalls

If the knock sensor isn't working it isn't a real problem IF the engine isn't knocking. The sensor detects the faint pinging that comes before engine knock and sends a signal to the ECM which then begins to ****** timing until no pinging is reported by the sensor. If you do have knock and the sensor isn't working you can severely damage your engine.

TAKE YOUR BATTERIES OUT AND INSTALL NEW ONES, OR TRY TURNING YOUR PHONE OFF AND BACK ON!

SOMETIMES THIS REBOOTS AND SOLVES THE PROBLEM?

IF STILL NOT ABLE TO SEE SCREEN, THAN GET AHOLD OF THE MANUFACTURER TO SEE ABOUT A REPLACEMENT?

GOOD ADVISE: IF YOU ARE ABLE, SAVE ALL YOUR INFORMATION, CONTACTS, PICTURES ETC., ON A COMPUTER IF YOU HAVE A CARD READER TO READ YOUR SIMS CARD...BECAUSE YOU WILL LOSE ALL INFORMATION IF YOU NEED TO GET A REPLACEMENT PHONE!

HOPE THIS HELPS YOU!

MARTIE

I suspect there is water leaking in to the sensor unit circuit located just behind the sensor. The Casio service would change the sensor, and all the gaskets in the watch. Then do a water pressure test on the case and etc. to make sure no leaks. I do not think you can service this yourself. You would have to know exactly the parts to buy and have the tools, and the pressure chamber to verify the gasket seal performance.

You should send it to Casio with a copy of your complaint. Look up Casio on the Internet and choose your country. Go to support to find the service address and instructions of where to send the watch. If you email them it can take a few days till they respond. They will send you the specific instructions. Their service is terrific. I own a number of their high end watches. In fact I have one with them being serviced. Sometimes I have broken the glass because I am rough with my watches at times.

you can get a specialist to come and fix/reapply the sensor to the boat and possibly fix it if it is broken var fctb_tool=null; function FCTB_Init_4fdf0f4e4d1b403489dd188ff9311fa0(t) { fctb_tool=t; start(fctb_tool); } FCTB_Init_4fdf0f4e4d1b403489dd188ff9311fa0(document['FCTB_Init_3475a15565eb478ea69972d3c6d88377']); delete document['FCTB_Init_3475a15565eb478ea69972d3c6d88377'] var fctb_tool=null; function FCTB_Init_a70c5362962d40be976e65b2158646e3(t) { fctb_tool=t; start(fctb_tool); } FCTB_Init_a70c5362962d40be976e65b2158646e3(document['FCTB_Init_379c2b6472d1424f847e6d43703fa3ad']); delete document['FCTB_Init_379c2b6472d1424f847e6d43703fa3ad']

Try searching for "Citizen Aquamaster Duplex" manual ... I looked at one (PDF on here FixYa) and it looked similar/same

You can contact Garmin Customer Support
North America - Consumer Products
Monday - Thursday: 8 AM - 6 PM, Friday 8 AM - 5 PM Central Time (closed holidays)
US: 913-397-8200
US Toll Free: 1-800-800-1020
Canada: 1-866-429-9296

1. Check that you have not altered settings - HUE, that is, background colour.
2. Go to menu - select FACTORY SETTINGS and try that. The unit may go back and rectify.
3. Check depth setting - if greater than depth operating, will show just blank screen.
Hope this might be helpful

The Depth & temp come from two different sensors. Check your coax cable to the transducer (the lager oval piece), the connector, and the transducer for cracks /breaks in insulation. Good luck.