Temp readings keep disappearing

[VH5150]

Lowrance HDS installed at the bow and console. My temps reading keep disappearing. I have the unit set to "The Unit" Global reading

[NoCAL]

Scope should be set to Local for temp. Otherwise, everytime you pull your troller out of the water, the unit will search for another source of temp data. If there isn't one you will get dashes. Set both to Scope, Local and source This Unit.

NoCAL

[VH5150]

Scope should be set to Local for temp. Otherwise, everytime you pull your troller out of the water, the unit will search for another source of temp data. If there isn't one you will get dashes. Set both to Scope, Local and source This Unit.

NoCAL

Thanks!