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You can't test such a timer with just a voltmeter. It is possible that the timer requires the load to try to draw some minimum current, which a voltmeter probably wouldn't. Or, the timer might ha...
Answer
#1: Initial revision
by
Olin Lathrop
·
2023-09-22T12:33:54Z (about 1 year ago)
You can't test such a timer with just a voltmeter. It is possible that the timer requires the load to try to draw some minimum current, which a voltmeter probably wouldn't. Or, the timer might have a little leakage current, which would cause the voltmeter to read the full voltage even when the timer is off. A lightbulb would be a good load for testing the timer. However, that's a terrible timer. It claims to work with "efficient bathroom fans", but gives no specs on power or current that it can switch. Since they won't tell you what it actually does, you don't know what you're buying and under what conditions it is supposed to work. Run away.