SeeLevel II - fresh water tank gauge intermittently not working

[Wayne]

Our fresh water tank gauge intermittently either works correctly or displays OPn, which I assume means "open". Has anyone see this and/or have any idea what it means?

 

[spasm3]

Looks like a sender is unresponsive, or a wire is unconnected. I it was shorted you would get a sht message.

This is according to a garnet manual. page 6 chapter 3 of this link.

https://www.rvtechlibrary.com/plumbing/SeeLevel712LT.pdf

 

[Wayne]

Thanks Spasm - now I just have to figure out where to find the sender on the fresh water tank, will google for that.