Install a Switched Outlet to Control a Lamp
I wired a switched outlet for a lamp and the fixture smoked, what did I do wrong? Identify the Electrical Circuit Before Wiring, Switched Outlet Wiring Diagram.
Switched Outlet Wiring
My electrical wiring project involves an Electrical Problem when I wired a Switched Outlet.
- I have an unused box on a 20amp circuit that had been capped off and covered before I bought my 1950s house. My plan is to install a switched outlet that will control a lamp.I wired up a 15amp receptacle last night and plugged in an old aquarium-style light with two fluorescent tubes that I knew worked. When I flipped the switch on, the light turned on, but it also started smoking.The pictures show my wiring scheme. One thing I noted is that my on/off switch seems to be backwards compared to ones I’ve seen in wiring diagrams online.I don’t know if this is relevant, but I found a second unused source on this circuit that was left hanging behind drywall. I can’t find any other outlets or lights that are on this circuit.Do you see something obvious that I did wrong, or is this a job for a pro?Thanks so much for all the effort you put into this website, it’s a GREAT resource!
This electrical wiring question came from Annie, a Homeowner in Iowa City, Iowa.
Additional Comments: Thank you so much for offering your expertise! It is much appreciated!
Thanks for your electrical wiring question Annie.
How to Wire a Switched Outlet for a Lamp
Application: Electrical Problem when Wiring a Switched Outlet.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Certified Electrician.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: This will depend on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source to the Switched Outlet, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the Switched Outlet should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in Iowa City, Iowa. A permit and inspections may also be required.
Resources to help you do electrical wiring in your area:
Locate Electricians or Electrical Contractors in Iowa
Iowa Electrical Contractor License, Building Permits and Electrical Codes
Avoid Problems When Wiring a Switched Outlet
This project is about an Electrical Problem that was encountered when wiring a Switched Outlet in the Entry area of a Old Home.
Switched Outlet Electrical Problem
First, I would like to advise you that before using the wiring in a outlet box for any purpose the circuit wiring will need to be positively identified to understand what the circuit was previously used for, and if there are any problems with the circuit wiring.
Identify the Electrical Circuit
The circuit can be identified with various methods using a ohm meter or a voltage meter. A voltage meter will be the best method so we can verify voltage and the condition of the circuit wiring. Keep in mind this is not all inclusive, as there may be unseen issues or problems that may have lead to the discontinued use of the wiring.
From what you have described, I would suspect that the voltage is not 120volts, but most likely 220-240 volts, and this would explain why the light fixture started to smoke. It is possible that this is a dedicated circuit that was once used for an electric heater, air conditioner, or other such equipment depending on the actual location of the electrical box.
If this is the case, then the circuit might be able to be converted by a qualified electrician to 120volts after careful inspections and conversions of the circuit wires inside the panel .
Update from Annie: Electrician Called, Problem Solved
I had an electrician come today, and you were exactly right about the circuit being 220 volts. An easy fix for the electrician, and I was reminded that I have no idea what I’m doing. I’m glad I didn’t burn my house down!
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