CED m2 error code

[wadevb1]

CED is having some problems. Last week, everything ran fine until the battery died. A few days later I inserted a fresh battery and powered the unit. I seen a LCD reading of "FULL" then went to normal screen. I set as and shot over it with no readings. I'm now getting a 5F error reading, regardless if the sensor plugs are inserted.

5F error code can't be located within their manual.

Anyone have a similar problem with fix?

Regards-

Wade

Edited:

CED rep was stumped initially. I had to wait for a return call from a techie. CLR/ALT buttons simutaneously pressed cleared the problem.