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I lost a full day's pay because I didn't double-check the voltage on an old dryer outlet before starting.
The house was built in the 70s and I just assumed it was a standard 240v, but it turned out to be a weird 3-phase 208v setup that fried the new dryer's board, costing me $300 in parts and a whole Saturday to fix my mistake.
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flores.mark27d ago
Always check with a multimeter first.
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the_jordan27d ago
Used to wing it until @flores.mark's advice saved my project.
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ward.diana27d ago
That's solid advice from Mark. I fried a perfectly good Arduino board last year by assuming a 9V battery was dead when it was actually the switch that failed. What's your go-to move when the multimeter reading doesn't match what you expect from the circuit diagram?
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