[CA] [CA11] Axiom/Pro seawater temp source.

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum ranmar850,

Please click here to view a FAQ addressing Water Temperature sensor prioritization within MFDs running LightHouse II or LightHouse 3 software. Should you switch OFF temperature sensing from the fishfinder sounder settings and Water Temp continue to be populated, then the data item would indeed appear to be originating from the engine system. One may absolutely be able to verify whether this was the case by simply disconnecting the engine gateway from the marine electronics backbone and then switching the marine electronics ON. Should the Water Temp data item remain dashed (while the setting had been configured OFF within the Fishfinder Settings), then it would appear that the engine system is pushing water temperature to the marine electronics. In the case of the latter, it would be recommended that the sensor be disconnected from the engine system, as you have indicated that it is grossly in error.