Questions tagged [electrical]

Distribution and use of electricity throughout the home. Electrical standards vary greatly worldwide, so you need to provide your location in your question or profile to ensure you get answers that are relevant to you. Posting photographs of wiring junctions or drawing a wiring diagram and posting it is also highly recommended.

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Wiring new construction from Meter to Main panel through the attic

I am wiring my new home. Can I run 4/0 aluminum THHN Service entrance from my Meter Socket to my main panel inside of the house 43' away through the attic without conduit or do I need conduit? The ...
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Gfci keeps tripping and not sure what to do

I have two circuits in my garage. One is a 15amp circuit that powers the garage door and has two outlets, the other is a dedicated 20amp fridge outlet. Both have GFCIs. I'm trying to run a kiln in the ...
2 votes
2 answers
60 views

Microwave door latches in wrong position

I have an AEG KM8403101m Micromat combi oven. During cleaning last week the door switch got locked in the closed position (even though the door wasn’t closed at the time). The microwave now shorts out ...
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5 votes
1 answer
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Trying to determine how large a generator I need for my minisplit HVAC system

I have a Mitsubishi Minisplit HVAC system. The compressor is a MXZ-3C24NA2 and the 3x head units are MSZ-GL12NA. When I pull up the wattage of the compressor I see a "rated total output" of &...
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3 votes
1 answer
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multi wire branch circuits with 12/3 cable for 6-20r and 5-20r receptacles on the same circuit in a workshop

I am planning on similar MWBC wiring in a new shop we are constructing (40x30 pole barn). I plan to use a double pole 20 amp GFCI breaker for each circuit in a 200 amp panel, and put at least one ...
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1 answer
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Wiring double pole thermostat when I only have 1 wire from the heater

I’ve got a set of wires coming from the panel (white, black, copper), and only one wire goes to the heater. I have a double thermostat. I connected L1 to the black from the panel and L2 to the white ...
1 vote
1 answer
85 views

How can I extend a circuit for another outlet?

I need to add another outlet just above this one in the wall. I have some experience wiring new outlets, but haven’t worked with one that already has to other runs off of it. There are 3 sets of wires ...
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13 votes
3 answers
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What determines "old work" vs. "new work" during a re-wire project? [closed]

My Home Depot Wiring 1-2-3 manual (2000) says the following about DIY re-wiring projects: It's possible that some of the wiring in your home fails to conform to current regulations. That's usually ...
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Is this the likely cause of my dishwasher refusing to drain?

My Smeg (DFD6132X-1) dishwasher wasn't draining (the display shows ER01) so I disconnected it from the mains electric and water, tipped it over and ferreted around with the undercarriage and found ...
1 vote
3 answers
101 views

Switch loop with continuing power to supply an outlet

Attached is a diagram of what I’m trying to make sure I wire correctly. I have 12/2 wire coming from panel to light fixture, 12/3 wire with red going from light fixture to a double toggle switch, 12/...
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2 answers
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Current in all earth pins

We started feeling a very light electrical shock when touching certain devices connected to the house’s electrical circuit. I tested it and noticed there was some voltage in all earth pins, which ...
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1 vote
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Gap size around electric panel for patching stucco?

Just had a new electric panel installed in my house. There’s about 2” of gap between each side of the panel and the stucco. My question is… should I make the gaps on each side bigger to fit in ...
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1 answer
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600amp service and Electrical Panels - Help me shop

We are getting going building our house/shop/workspace building. Its large so we are going with a 600amp main panel and a few sub panels - one for the business end and a few in the residence and a ...
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4 votes
2 answers
571 views

How can I tell if I hit a wire in the studs when hanging plywood sheathing in my building?

I have a new building and ran cable through the studs. I've started hanging 7/16" sheathing on one wall and a part of another. I used 2-3/8 inch framing nails and I tried to stay about 6 inches ...
2 votes
1 answer
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Metal box shows ground on plug tester even though there is no metallic sheathing or grounding wire

Two rooms in our house have older electrical wiring: two-wire 12 gauge insulated wire (no ground wire) that looks like an older version of romex (no metallic sheathing). These wires terminate outside ...
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8 votes
1 answer
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What is the 40° C rating on a circuit breaker?

When selecting breakers I sometimes see 40° C stamped on the face. What does that mean? Is it related to 60 or 75° ratings for conductors and other components?
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Breaker temperature rating [duplicate]

I am using a 100amp Stab Lok breaker in my main panel to power a subpanel in same area. The breaker I have says 40c. Is this ok or should it have a rating of 75c? This is for 36” runs of 3 gauge to ...
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3 votes
1 answer
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Ceiling fan + light combo, add a 3-way switch + dedicated fan switch?

I'm in the US. My kitchen currently has a ceiling fan + light combo that is controlled by a single switch. The switch is at the far end of the kitchen (next to the outside door) and I'd like to add a ...
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5 votes
5 answers
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Wago (221 or 222) vs Lever Nuts (generic/various Chinese brands)

I have used Wago splice connectors especially 3 and 5 wire 221’s for lighting, like converting fixtures from fluorescent to LED. They are much quicker and easier than screw-on wirenuts, and seem to ...
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0 answers
71 views

Power cord burn [closed]

I have Samsung electric range burn at power cord and range itself. Everything look normal at I remove power cord, but at appliance itself scorch and burn little bit at a black wire. It is OK to ...
4 votes
3 answers
269 views

Connecting Barns/Houses To mains power

I'm in the process of converting three barns into houses. Two of the barns are located 50 meters away from the main power pole. I'm considering two options for getting electricity to the barns. Option ...
1 vote
1 answer
35 views

Can I run just the Freezer portion of a Hotpoint HFF31014UK?

I have a built in Hotpoint HFF31014UK fridge freezer. This has two plugs, a plug on the fridge and another for the freezer. They have been off for a while as the fridge was not working properly. Can I ...
4 votes
1 answer
317 views

Have I missed anything in my plan for a new 240v circuit?

I'm a beginner adding a 220V 40A circuit via exposed conduit for my new induction cooktop. Does this plan look reasonable? Under counter metal junction box grounded and mounted to back of cabinet. ...
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1 vote
3 answers
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Need Help Troubleshooting Potentially Faulty Neutral Wiring in Circuit

I think my issue may be similar to this post but I'll explain my situation. I have an older home and the living room is on a circuit that contains 2 non-grounded outlets and a wall switch. The wall ...
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1 vote
3 answers
72 views

Running a NEMA 6-15 plug off double pole 20A breaker

My device calls for 12A and 220V, but comes with no plug attached. The suggestion is to use a NEMA 6-15p plug. I decided to run 12/2 Romex and upgrade the breaker to 20A. This should be no ...
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2 votes
6 answers
123 views

Burned Circuit Board on GE Range

My wife and I were using the oven on our GE JS645SL5SS electric range. The oven was behaving normally while baking at 350F, and we weren't doing anything out of the ordinary with it. When my wife ...
0 votes
1 answer
47 views

EZ Generator Switch with Generac GB1000 and gas furnace

Can I use an EZ Generator Switch as a transfer switch with a Generac GB1000 battery and a gas furnace (Bryant 340aav). If so, should it be setup as bonded neutral or floating neutral (I'm guessing it'...
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5 votes
3 answers
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Can I cover my breaker panel and wires with a frame?

My home’s electrical panel is mounted on a wood board on frames inside the garage. I’m trying to finish the garage with drywall. This is the electrical box, with wires comes out all sides and sticking ...
2 votes
3 answers
554 views

Separate power on indicator light

I want to wire a separate power on indicator light to the ON side of an existing light switch. I'm familiar with how to wire it. The mini light I'm using is rated for 110v and has two extremely small ...
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0 votes
2 answers
50 views

Are surface burner elements interchangeable even though the connecting ends are different?

Can I use a GE surface burner element in a Whirlpool stove when neither the connecting ends nor the number of rounds it has match with the original?
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0 votes
2 answers
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Is my subpanel plan reasonable?

I have a 125amp main panel in my house. I need to add a subpanel directly below it. My plan is to use a 100amp feed with a breaker in main, run through 1-1/2” conduit to subpanel. Wire will be no more ...
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0 votes
1 answer
76 views

Different output levels depending on input voltage / amps

I have some PA speakers that display two different fuse levels on the input label depending on the input voltage: Am I right in thinking you multiply the amps by the voltage for the fuses to get the ...
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3 votes
2 answers
85 views

How can I branch off an exterior wall outlet for a post outlet without cutting into the wall?

I have an exterior outlet/receptacle on the front of my house that I'd like use to extend power to a location about 45' away, where I have a small gravel parking area (I occasionally need to run ...
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9 votes
7 answers
6k views

Will installing European outlet in US change frequency to 50Hz?

I'm planning to buy a Siemens coffee machine from Europe. It uses 220-240V 50Hz. Previous models work just fine in USA using 240V outlet (my electrician was able to get it done, I bought leviton 5031-...
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1 vote
0 answers
51 views

Do I need a ground rod connected to my panel in my mobile home?

There is a meter pole with the main disconnect and ground rod at the bottom, feeding the mobile home with 4 wires, 2 hot, 1 neutral, 1 ground. Neutral and ground are bonded at the meter pole main ...
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0 votes
1 answer
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Ground and neutral switched in old wiring

The house I live in has old wiring I haven't ever really looked at much. I have decided to add solar so have started looking at it. We are off grid and currently the entire house comes out on a ...
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1 vote
2 answers
53 views

2 motion sensors on railing with LED

I have a rather complicated situation with the LEDs I'm trying to install. There will be a railing on top of the posts and I’m want to attach the LEDs to the bottom of the railing. Here’s were it gets ...
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1 vote
2 answers
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What is the busbar rating in my main service panel?

I don't understand the difference between "device rating" and "meter socket rating" on my MSP? I'm most interesting in the busbar rating? Here are pictures of MSP: https://...
0 votes
0 answers
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Power supply for new television ... C14 10A plug to C7/8 25A cord/plug [closed]

The previous owner of my flat buried a sony tv power cord (10A c14 plug) in the wall instead of creating an elevated plug socket. I recently purchased a new tv and would like to avoid tearing apart ...
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3 votes
3 answers
108 views

Why are my lights flickering at specific times of the day

I have this problem where a few fluorescent lights in my house are flickering at specific times of the day. Usually it starts at 06:00 AM and also starts 18:00 PM. They flick for about 10~20 minutes ...
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3 votes
2 answers
653 views

What's the preferred method for connecting #8 wires in a junction box?

I have several floor joists in my basement that need to be sistered up but unfortunately the 8 gauge wire that powers the AC compressor runs diagonally through all of them. Disconnecting it from the ...
2 votes
1 answer
109 views

Can I split a 400 amp service this way?

I recently purchased the lot next door in Lincoln County, Oregon. I’d like to build a shop now and someday build another house or let one of my kids do it. Can I have a 4/0 service wire run from the ...
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0 votes
2 answers
67 views

Reversed light switch [closed]

Recently had a 48 hour power outage. When the power came back on, two of the light switches that were on when it went off are now reversed. Down is on and up is off. They are both single switches that ...
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4 votes
2 answers
374 views

What wire to use for 30Amp Dryer outlet 75 feet from the panel?

I am moving a dryer and need to wire a new 240V outlet. The outlet is 75 feet from the panel. I'm installing a 30 Amp GFCI breaker and converting the 3 wires to 4 wires . I had thought that 10/3 wire ...
2 votes
2 answers
82 views

How can I conceal an electrical box mounted on a wall with an angle passing through it?

Moved into a house with a 2 gang socket mounted on an angled bit of wall. It's a galvanized steel back box with holes for mounting that have been left exposed. This is in my child's room and starting ...
3 votes
2 answers
122 views

Can a fuse panel supporting knob-and-tube wiring be replaced without a new feed or updated circuits?

Home built before 1910. It is a 3-story structure with plaster walls and some BX, some cable and a lot of knob and tube. In the hallway on the second floor is a fuse panel for that floor and some of ...
0 votes
1 answer
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Bonding device to box when using EMT as EGC

I have an outlet run using EMT as the EGC to a metal box. Once I'm at the box do I need to connect a wire from the device to the metal box, or is the grounding ear of the device a sufficient ground ...
2 votes
2 answers
305 views

Removing wires from this kind of lightbulb socket

I'm trying to uninstall/install cables from/to lightbulb sockets as shown below. The cables go into two of the small round holes as shown in the second picture. There is no obvious way to squeeze, ...
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2 votes
1 answer
60 views

Share a electrical disconnect heat pump/car charger

Outside my house I have a electrical disconnect that had 60amp 240v going into it, previous owner went overkill for his big Tesla. Last year I used the disconnect to add a much needed heat pump, I ...
2 votes
1 answer
81 views

What does the A stand for in the type designation for GE THQAL Breakers?

Are the (old) GE Type THQAL breakers allowed to be used in modern GE PowerMark Gold load centers? What does the A stand for in the type designation? I noticed that it is for 60C wire. Is this the only ...
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