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Recent Voltage questions

I've followed instructions you have for GFCI with 3 black

I've followed instructions you have for GFCI with 3 black and 3 white wires, using pigtails for the load side. The green light is on at the front of the recptacle, but it is not powering a lamp. Already hit resetJA: I'll do all I can to help. How long have you been dealing with this?Customer: 15 minJA: Do you plan on doing the work yourself?Customer: YesJA: Anything else we should know to help you best?Customer: No

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Mike G.

Master Electrician

Vocational, Technical or Trade Scho

9,514 satisfied customers
I need to replace an Intermatic T20004R pool pump timer (240

I need to replace an Intermatic T20004R pool pump timer (240 volts). May an Intermatic T104R3 or T104RD89 be used instead? Having a difficult time locating the original model.

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ProGrade

Electrical Contractor

850 satisfied customers
How to check which is the input & output of the transformer

how to check which is the input & output of the transformer if there is nothing mentioned on any side of the transformer suppose the transformer has 2 wires on each side

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Kevin

Supervising Electrician

Diploma

4,238 satisfied customers
I have been changing the outlets and switches in my home and

I have been changing the outlets and switches in my home and everything was fine until dealing with a particular 3-way circuit in a bedroom. I have checked both switches with a meter and they are working fine. I located the hot wire in for each switch and connected that to the black screw, the other black and the red to the brass screws and the ground to the green screw. However, the switches are not able to turn the light on and off - the light is permanently on. I checked the voltage in the different switch positions and they all recorded 120V. Please help!!!

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Kevin

Supervising Electrician

Diploma

4,238 satisfied customers
I need help sizing a transformer... 120/208 primary 277/480

I need help sizing a transformer...120/208 primary277/480 secondaryfeeding (2) ovens @ 80 amps each. continuous load

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,892 satisfied customers
I have an old home built in 1930. I'm trying to change an

I have an old home built in 1930. I'm trying to change an outlet. The receptacle has two screws not four: one on each side of the outlet. It appears that two of the wires are hot and are attached one to each side along with the neutrals. Do I attach the two hot wires on one side and the two neutrals on the other. I've never experienced two hot wires coming into one outlet before.JA: I'll do all I can to help. How long have you been dealing with this?Customer: Not longJA: Do you plan on doing the work yourself?Customer: YesJA: Anything else we should know to help you best?Customer: I think that's it

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Mike G.

Master Electrician

Vocational, Technical or Trade Scho

9,514 satisfied customers
I've just connected my compressor single phase up I have two

Hello I've just connected my compressor single phase up I have two hot going to compressor and a ground all from main panel the compressor has cable already on it right from factory so I connected to it compressor won't power up I've checked and recheckedJA: I'll do all I can to help. How long have you been dealing with this?Customer: Basically couple hoursJA: Do you plan on doing the work yourself?Customer: Yes I got it already done got advice from electrician at workJA: Anything else we should know to help you best?Customer: It's a used compressor but was working very good at last place it was at

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Mike G.

Master Electrician

Vocational, Technical or Trade Scho

9,514 satisfied customers
Manufacturer of dual voltage (120/220) plasma cutter

manufacturer of dual voltage (120/220) plasma cutter recommends that I connect 3 wire to my 4 pole 220 receptacle with ground wire to the nuetral. is this safe?JA: I'll do all I can to help. How long have you been dealing with this?Customer: just todayJA: Do you plan on doing the work yourself?Customer: yesJA: Anything else we should know to help you best?Customer: i have a picture of what they are recommending. would that help?

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ProGrade

Electrical Contractor

850 satisfied customers
I am putting in an outside light when the switch is on

I am putting in an outside light when the switch is on everything on the circuit works including outside light as soon as I turn switch to off breaker tripsJA: I'll do all I can to help. How long have you been dealing with this?Customer: just startedJA: Do you plan on doing the work yourself?Customer: yesJA: Anything else we should know to help you best?Customer: tried 4 times same thing happens

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Kevin

Supervising Electrician

Diploma

4,238 satisfied customers
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