All, I'm not sure how to troubleshoot the issue. I don't know if its the sender that isn't changing resistance or the control panel not reading the resistance. One day it was working the next not. I guess I could cut the wires and read the resistance of the sender by using an ohmmeter. Assuming the resistance is linear 1/2 full would be 45 ohms etc. If the sender is changing resistance then it must be the control panel circuit that's faulty.
Any other thoughts?
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