Why is My 240v Line Voltage Only Measuring 16v Between Line Phases?

AI Thread Summary
The user is experiencing a measurement of only 16 volts between the line phases of a 240V single-phase panel, while 120V appliances are functioning. The discussion suggests that the issue may stem from a malfunctioning meter or incorrect settings, as normal voltage should be present. It is highlighted that the user has likely lost one side of the power supply, affecting the 240V appliances. Recommendations include turning off all 240V appliances to check if additional 120V devices stop working. This indicates a potential power loss affecting the 240V line specifically.
moopiehead
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why am I only getting 16v between both line phases coming into my service from the meter on a 240v single phase panel for a home
 
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moopiehead said:
why am I only getting 16v between both line phases coming into my service from the meter on a 240v single phase panel for a home
What are you using to measure this?
 
moopiehead said:
why am I only getting 16v between both line phases coming into my service from the meter on a 240v single phase panel for a home
am using a flute volt,amp,digital meter
 
Give us a bit more info:

You are looking at this because you have lost power in your house or because you are just curious?

You are seeing normal voltage between lines and neutral, just not between line-line?

If you have lost power, how much have you lost:
Everywhere?
About half of outlets?
Just 250V appliance (central air)?
 
Just 240 v equipment water heater ac unit all 120 v equipment and devices work
 
Sorry if I'm teaching my granny to suck eggs but are you certain that you have V AC selected?
 
moopiehead said:
Just 240 v equipment water heater ac unit all 120 v equipment and devices work

If all devices work properly, you are getting line to line of 240 and line to neutral 120.

Either you meter is broken or you do not have it set to VAC...or perhaps you have it on the wrong scale!
 
psparky said:
If all devices work properly, you are getting line to line of 240 and line to neutral 120.

Either you meter is broken or you do not have it set to VAC...or perhaps you have it on the wrong scale!

He said his 240 volt appliances are NOT working. He has lost one side and most likely the reason the 120 volt appliances all work is because they are being fed THROUGH the 240 volt appliances. My recommendation is to turn off ALL 240 volt appliances and he will find a bunch of 120 volt things that no longer work.
 
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