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James Sweet James Sweet is offline
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Default Fluke 79 acting up

The rotary switches get dirty over time. Take the meter apart and
clean the rotary switch with contact cleaner. If there's carbon
strips on the back side clean them with an alcohol soaked Q tip.
Also, clean the button grids on the circuit board with alcohol.




Tried it, no change. I covered all the easy stuff, including touching up any
suspect solder joints I found.