Low voltage at wall switch
#1
02-20-08, 10:52 AM
Join Date: Aug 2007
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Low voltage at wall switch
I have a four gang light switch box in my house which I recently purchased. One of the switches does not seem to work anything when it is switched on. I tested the voltage and there is only 40 volts coming to this switch, the other three work fine and have 120 volts. What are some causes for this low voltage?
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#2
02-20-08, 11:45 AM
Originally Posted by abbub
I tested the voltage
and there is only 40 volts coming to this switch...What are some causes for this low voltage?
#3
02-20-08, 11:50 AM
The 40v is meaningless, especially if you used a digital meter. If there is no neutral in the switch box you can't measure the voltage. If this box has switch loops there may be white wires but no neutral. If a white wire is connected to a switch is not a neutral (or certainly shouldn't be).
The switch may no longer be connected, or for a receptacle or in case it is needed at some future time for a ceiling fan and light.
The switch may no longer be connected, or for a receptacle or in case it is needed at some future time for a ceiling fan and light.
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