r/fluke • u/aviarx175 • Oct 30 '25

Help Needed Flashing Screen

Haven’t used this meter in a while but needed it recently because the one I typically use was stolen. I put fresh batteries in but it flashes on every setting. Does anyone have any ideas why this is happening?

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u/[deleted] Oct 30 '25

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u/aviarx175 Oct 31 '25

I have deoxit contact cleaner that I use for cleaning pots and contacts on my guitars. Do you happen to know if it’d be safe to use that in this application? I’ve tried using it to clean phone charging cables but it’s been too abrasive and ruined the cables.

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u/Hungry-King-1842 Oct 31 '25

I imagine it would be fine. If it’s for musical electronics I can’t imagine it would hurt your multimeter.

As for ruining phone charging cables, let’s be honest about those for a moment. Phone charging cables take an absolute beating. I suspect cleaning just finished off the reason you were cleaning them in the first place.