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Questions tagged [testing]

The tag has no usage guidance.

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1answer
22 views

Test gauge plug on domestic gas system

I am in the U.S. I know that it is a good idea to have a capped or plugged nipple outlet somewhere on your interior gas pipe system where you can mount a test gauge that can be pumpted to a certain ...
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3answers
1k views

What happens when using a GFCI Tester on a non-GFCI outlet?

I have an outdoor power outlet of which I'm not sure if it's GFCI or not (House was built in 1978). The outlet does not have Test/Reset buttons, but I don't know if outdoor outlets even have them. ...
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2answers
52 views

Testing TV aerial connection

I have been putting in some TV aerial co-ax cable into my house (in the UK). Before I put the floor down, I would like to test it to make sure I've connected it well enough. Due to the routing ...
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1answer
29 views

Testing for MSRA/Staph in your home [closed]

I am unsure if this is the proper place to ask this, or if the Biology StackExchange would be better, but I thought to start here first! My situation is that I have been suffering from skin problems ...
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1answer
63 views

What's wrong with my replacement fan motor?

I have one of those integrated bathroom 3-in-1 ceiling units (light, heat and exhaust fan). Recently the fan spontaneously stopped working. I took the unit down to inspect the fan motor and took it ...
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0answers
59 views

Testing dishwasher drain hose after snaking cloggage but before putting back

My dishwasher (Samsung DMT400RHS) stopped working (it would turn itself off 10-15 min after start) and I determined it was because the drain hose/assembly was clogged so it couldn't flush out. I took ...
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3answers
131 views

Can the Distance of a Subpanel affect Outlet Tester Results

I got help with wiring my cabin here: Requesting Evaluation of Power Plan at Rural Cabin and here: Cabin Wiring Plan Revisited I also put a follow up comment there, but now I'm not sure that was the ...
2
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1answer
570 views

Natural Gas Furnace Installation Shut off valve Direction

The furnace installation directions specifies a shutoff valve with a 1/8" NTP plugged hole for test gauge. I bought this valve and am ready to assemble the pipes but I am uncertain about which side of ...
3
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1answer
376 views

How to test two-prong retrofit outlets downstream of GFCI

Given old two-prong (ungrounded) wiring where a GFCI is installed nearest the panel and other two-prong outlets are attached to the load side of that GFCI, how does one confirm that all the outlets ...
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1answer
229 views

Test for lead over wallpaper

If the walls are covered with wallpaper, eventually to be removed, can one test for lead in the paint under it without stripping the wallpaper? Or does one first have to strip everything, and then ...
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2answers
132 views

How can a GFI installed on an ungrounded two-wire line be verified?

From an online source: Your outlet tester may do double-duty as a GFCI outlet tester, simulating a ground-fault by the push of a button on it. There is a limitation here. Unlike a good GFI, which ...
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5answers
868 views

What to do with a new duplex outlet when the tester says Hot & Ground are Reversed?

I switched out a regular outlet with a LeGrand Radiant Duplex Outlet, connecting all of the wires (2 White, 2 Black and 1 Green) exactly as the previous outlet was wired and according to the ...
3
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1answer
3k views

HVAC blower motor runs for a few minutes then stops

I have a Trane X80 furnace with a Nest gen 3 thermostat. This combo has worked flawlessly for a summer and a winter. I just switched back to "cool" and the fan and compressor come on, but the fan ...
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1answer
1k views

What could cause a false positive report from a line tester?

I'm in India where the domestic supply is 250v @ 50Hz. I've been working - gradually replacing the solid-core wire/s with stranded wires purchased recently. To my surprise the line tester showed a ...
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2answers
18k views

Unexpected voltage with switch turned off

I am doing some work on a ceiling light and I notice that, even though the light-switch is off, my voltage tester shows voltage present. Answers to other questions (below) explain about phantom ...
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1answer
6k views

Electrical device for testing continuity of long home-run wires [closed]

Does anyone know the name or have a link to an electrical testing device for verifying home-runs to electrical box?
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1answer
111 views

Testing electrical outlet wiring, arising from wikipedia

The following paragraph appears near the end of this article: Simple three light testers cannot detect two potentially serious house wiring errors: (1) neutral and ground reversed at the receptacle....
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1answer
7k views

How do I Test a Dishwasher Pump Motor

My Whirlpool WDT720PADM dishwasher stopped functioning properly last night. It will run through a full cycle, filling, draining, heating, soap door opens and steam vent opens at the end. While running,...
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3answers
896 views

Thermocouple measured okay, but replacing it fixed the problem?

So the pilot on my furnace wouldn't stay lit. I tested the thermocouple with my multimeter and got 29 millivolts which meant it was still working. Assuming I was in over my head, I called the plumber ...
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1answer
101 views

Refrigerator cycles off/on, comes on fully when condenser fan is unplugged

I have a refrigerator which cycles off and on fairly rapidly, about once every two seconds. This has been occurring intermittently for some time. Today it finally failed to come on. I finally got it ...
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0answers
137 views

Troubleshooting: Why does my multimeter not work when a non-contact volt detector shows current?

I recently purchased a 1970's home, and the lights in one room don't work. Troubleshooting yields odd results, and I don't know where to check next. The room A fairly standard secondary room on the ...
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2answers
38 views

Leak Detection on Natural Gas Line

Has anyone figured out a better method the locate a leak other than a Gas Pressure test gauge and Leak Detector Spray?
5
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1answer
629 views

When, if at all, are Insulation Resistance (or Megger) tests on an electrical system useful?

I had some close (though not direct) lightning strikes that fried some electronics and appliances (computer, TV, AC, modem, router, spread across several circuits) over several years / storms. I had ...
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2answers
10k views

How can I test a three prong dryer receptacle for open neutral/ground?

I have a dryer that recently stopped working. After speaking with more than one appliance repair person, and trying more than one dryer, I'm sure the dryer is fine and some electrical fault is to ...
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1answer
123 views

How can I use a multimeter to replace electrical testers, etc.?

I have a multimeter and I don't want to spend more money on other electrical test devices. How do I use a multimeter to perform the same functions as a: circuit tester GFCI outlet tester
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1answer
118 views

Mold, Lead, Asbestos Testing Kits - recommended or seek a professional?

Professional testing of Mold or Lead or Asbestos can range from $300 - $1000 for each type. I just found some home testing kits that require you to take and submit samples. Are these a good cost ...
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2answers
164 views

Using a receptacle tester

Bought a receptacle tester, most outlets are good, not sure how to read the outlets that have switches. Outlet 1: tester reads good, when I turn the switch off it reads open ground. Outlet 2: tester ...
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1answer
3k views

how to test electric dryer without 240V outlet?

I received an electric laundry dryer that I want to test before installing. The new dryer is outdoors on the back porch, and a working electric dryer is installed in my basement, quite a distance away....
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1answer
416 views

How to test ground/neutral without outlets?

I use this simple plug device to detect any ground/neutral problems in outlets and if they're properly installed. What can I use on open wires in an electrical receptacle to emulate the same test?
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1answer
19k views

Plumbing rough-in pressure test PSI

My plumbing rough-in is done, and inspection was passed. Unfortunately, I had to move a couple of things the plumbers did. I probably had to redo about six crimps rings. Before I go any further, I'...
1
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1answer
3k views

Proper way to test AC voltage for dishwasher hookup

I am trying to connect my new dishwasher to the electrical cable coming up into my kitchen from down in the basement. This (white) cable actually houses 3 smaller wires inside of it: A white wire (...
0
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2answers
60 views

Is there a way to measure the output of a single HVAC vent?

As inspired by this previous question, is there a method or device used to measure the output of a single HVAC vent or the output of a single room? I'm imagining some sort of hood device that could ...
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2answers
6k views

How to test existing ethernet cable outlets?

I moved into this 15 year old house about a year ago and there's a RJ45 wall jack in my office (2nd floor) and there's another one in the living room near TV. I'd assume there's planned in for TV to ...
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2answers
2k views

Testing wire with low voltage current

What is a convenient and safe way to send some low voltage current through wire for testing and identifying purposes? E.g. awhile ago, I wired a two speaker setup behind drywall with one input box ...
2
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3answers
218 views

Safe and low-liability way to determine whether a circuit draws more current than allowed?

When I saw several electricians commenting on not knowing of a tool which tests peak current draw from an outlet in this question: "Is the Electrician trying to scam me?", it made me wonder: Is there ...
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0answers
462 views

Air Admittance Valve Testing Equipment For Inspection

I have an Oatey air admittance valve (AAV) installed in my home as part of an improvement project. Today the inspector came and said that the AAV would have to be tested with an air admittance valve ...
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0answers
95 views

Air testing for new plumbing in addition?

I have inspection in a few days for my new plumbing (3" SCH 40), 1 1/2" Drain lines. Inspector told me I am responsible for the test plugs, air guage and the whole set up. Im looking to set this up ...
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1answer
12k views

How do I verify that a 240v outlet is wired properly?

I recently had a dryer installed and it powered on, but wouldn't run. I was able to verify the voltage at 240v using a multimeter, but I'm not convinced that the outlet was wired properly. They are ...
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2answers
9k views

How can I determine if CAT5 cable is wired for data or phone?

We just moved into a home that has a renovated basement and all of the receptacles have two CAT5 wires pulled to them (one for telephone and one for data) but none of the wires are labeled or ...
0
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1answer
92 views

where can I send a backyard soil sample for lead testing?

Does anyone have links for a lead soil testing lab? I live in Oakland California in an old house that certainly had/has lead paint. I'm concerned about possible lead levels in the backyard soil. ...
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0answers
91 views

Pressure Testing plumbing - pressure drop over night

I'm pressure testing some PEX before I close in the walls. I pumped in 80psi of air around noon yesterday and it was about 60 degrees F. Was a solid 80psi from when i filled to to 11pm (11 hours). ...
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2answers
540 views

Testing and proper breakers for a multi wire branch circuit?

How do you determine if an outlet is part of a unidentified multi-wire branch circuit? Also, does code say MWBCs need to be on double throw circuit breakers and is it permissible to link CBs with that ...
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2answers
655 views

How do I stress test a roof for leaks?

I am about to have some ceiling work done on my house that has previously had roof leaks. I would like to be sure that the repairs to the roof are successful. How would I go about stress testing the ...
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4answers
1k views

Tracing elctrical outlets that suddenly stopped working.

Last fall an outdoor outlet and an outlet in my garage worked just fine. However this spring neither of them work. Any thoughts on how I can go about researching or identifying the problem? I ...
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2answers
485 views

How to test for mold in basement?

The air quality in my basement is unpleasant. I don't know if I have mold. How to test for it? How is the smell of mold? I know that we had a water problem in the basement, the walls were cracked so ...
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2answers
904 views

How can I trace the exhaust duct of my bathroom fan?

I have a suspicion that my bathroom isn't venting correctly. I'm thinking smoke would be an easy way to test this, but I don't know of a safe and cheap way to make it. Any ideas?
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1answer
1k views

How to test if a dishwasher's below the floor heating element is faulty?

My dishwasher uses a Bauknecht 2040W heating element: Can you test if it's faulty using a continuity test? If so, is the continuity test between: ground and the positive, ground and the negative,...
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2answers
2k views

How do I test a 5V doorbell transformer?

In this post, both the OP and responder discuss testing a transformer. I'd like to know exactly how the user tested the transformer. I have a 5V doorbell transformer which I would like to test. Is an ...
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1answer
125 views

Testing generator output

I'm having trouble getting a 6kw generator to power a sub panel that was installed by a licensed electrician. I would like to be able to test the generator's output. How do I do that?
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5answers
2k views

What is a good tutorial on the use of a multimeter?

I am ashamed to admit, that despite my many electrical (mis?)adventures.. I have no idea how to use a multimeter. I have installed automobile sound systems, central air air-conditioners, and every ...