I tore off my transducer for my Lowrance LMS-480. I bought a replacement transducer with built in temp sensor (as did previous transducer). I installed new transducer tonight, and turned on the unit. While sitting in the garage, it appears to be trying to read a depth, but temp is stuck on 32 degrees F. The trolling motor transducer reads 70 degrees (outside air temp). Is there something that I need to do in the menu to get temp sensor working, or could the sensor be bad. Any help would be great. ThanksKentKent Charles 2002 Pantera Classic & 200 Yamaha VMax
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