Questions tagged [multimeter]

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Why do I measure 12VAC on old thermostat wires?

I'm installing a nest thermostat in my house - it's the UK version with a heatlink. I have successfully wired the heat link into my combi-boiler, disconnecting two existing wires in the process. I ...
Ed_'s user avatar
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determining if my multimeter is functioning correctly

Am using a multimeter to check some circuits. All the breakers show a 1 or .9 at the hot terminal to ground, which i assume means 100 volts, 90 volts. Everything is working correctly. I checked at ...
Jerry Singh's user avatar
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How do I test voltage without a ground/confirm a good circuit?

For context, I recently moved (into a very old home) and I have a series of recessed lights operating on a single switch. All but one light fine... what I assume is the last in the series does not. ...
acraigl's user avatar
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Non contact voltage sensor shows voltage a foot away from live wire

I'm evaluating a situation in a home I recently moved into. A previous owner did some DIY and installed a switch in the wall of our kitchen pantry. The pantry is made of wood and the switch is housed ...
Homeowner9531's user avatar
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Switch wiring - strange multimeter readings

I'm about to replace a dimmer switch in my house (UK - Single Phase) and every wire in the backbox is red, while I've tested and identified each (live in, live out, neutral in, neutral out, neutral to ...
Callum Elliott's user avatar
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Why don't I read voltage on a disconnected heating circuit?

I am trying to replace a broken in-wall electric heater. I wanted to confirm if the heater voltage that I am purchasing is the right one, so I got a multimeter and set it at 200V/500V (AC (V with ...
Lelouch Lamperouge's user avatar
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Why do I read no voltage with my humidistat's solenoid is installed?

I've been troubleshooting my humidifier for a bit now (just learning this stuff as I go). It would appear the wiring for the furnace (apparently the transformer) meets the wiring for the humidistat ...
Chris's user avatar
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Diagnosing lamp electrical issues: 3-socket floor lamp has resistance for each socket, but no power

I am trying to fix this floor lamp It is a standing floor lamp with 3 bulbs and a rotating switch that has 3 positions: 1 bulb on, 2 bulbs on, 3 bulbs on, or off A couple of weeks ago I saw a spark ...
talker90's user avatar