Electrical

Electrical Questions? Ask an Electrician Online.

Ask an Expert,
Get an Answer ASAP!

Electrical

I need a wiring diagram to install new safety photo eyes at

Customer Question
the bottom of my garage...
I need a wiring diagram to install new safety photo eyes at the bottom of my garage door. The previous owner had removed the original ones. Craftsman 1/2 h.p. 41A5021-2E date 02/01 132C2105-3B
Submitted: 6 years ago.Category: Electrical
Show More
Show Less
Ask Your Own Electrical Question
Answered in 9 minutes by:
3/13/2011
Electrician: Jason, Service Technician replied 6 years ago
Jason
Jason, Service Technician
Category: Electrical
Satisfied Customers: 4,289
Experience: Over 20 years of experience in all types of installations, troubleshooting, and repairs.
Verified
Jason :

Hello. Thank you for asking your question on Just Answer...

Jason :

I haven't installed a garage door opener in quite some time. But I would be happy to look at my own opener (which I did install) and tell you how the sensors are wired.

Jason :

I have 3 terminals on the side of my opener, marked 1, 2, and 3. The sensors each have a low voltage two conductor cable running to them. One conductor for each sensor has a black stripe on it. The black striped conductor for each sensor is connected to terminal number 3. The unstriped conductor for each sensor is connected to terminal number 2.

Jason :

The wall mounted (hard wired) pushbutton also has a wire connected to terminal number 2. The other wire from the pushbutton is connected to terminal number 1. This gives you 1 wire on terminal number 1, three wires on terminal number 2, and two wires on terminal number 3.

Jason
Jason, Service Technician
Category: Electrical
Satisfied Customers: 4,289
Experience: Over 20 years of experience in all types of installations, troubleshooting, and repairs.
Verified
Jason and 87 other Electrical Specialists are ready to help you
Ask your own question now
Ask Jason Your Own Question
Jason
Jason
Jason, Service Technician
Category: Electrical
Satisfied Customers: 4,289
4,289 Satisfied Customers
Experience: Over 20 years of experience in all types of installations, troubleshooting, and repairs.

Jason is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Mike

Mike

Master Electrician

1,426 satisfied customers

Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer

Jason

Jason

Service Technician

4,289 satisfied customers

Over 20 years of experience in all types of installations, troubleshooting, and repairs.

Mike G.

Mike G.

Master Electrician

7,826 satisfied customers

Proven Professional 48 years Experience

Kevin

Kevin

Licensed Electrical Contractor

3,870 satisfied customers

31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Technician License

AssuredElectrical

AssuredElectrical

Master Electrician

3,264 satisfied customers

Contractor-42+ Years in the ElectricalTrade

electrifier

electrifier

Master Electrician

1,458 satisfied customers

Electrical contractor and electrical inspector for over 24 years with phone and networking expertise

Rich

Rich

Master Electrician

1,115 satisfied customers

Over 35 years residential, commercial, industrial wiring, install, troubleshoot, service, maintain

< Previous | Next >

Related Electrical Questions
I have a low voltage transformer in my garage which has 4
I have a low voltage transformer in my garage which has 4 lines coming out of it and out of the house to power landscape lights, etc... we have two main path lights that are connected to this transfor… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I have three black wires and three wires I don't remember
I have three black wires and three white wires I don't remember how the light switch was wired so far I have capped all three white wires and I found my hot wire but now the outlet next to the light s… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
7,826 satisfied customers
I'm trying to wire up a dimmer...I have 2 black wires in the
I'm trying to wire up a dimmer...I have 2 black wires in the box, a green ground and 2 white wires...how do I connect the dimmer? … read more
George Smith
George Smith
Vocational, Technical or Trade School
320 satisfied customers
My outdoor post light has low voltage. It did work and then
My outdoor post light has low voltage. It did work and then stopped working, I changed out three bulbs and they will not come on. I put an led bulb in the lamp and get a weak glow. The incodesent bulb… read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have 3 wires and 3 black wires, and I'm trying to hang a
I have 3 white wires and 3 black wires, and I'm trying to hang a kitchen light I can't seem to get it to work. … read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
If you run 110volts through a low voltage high bay lite on
If you run 110volts through a low voltage high bay lite on accident will it fry the built in driver. … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have a purple wire, a yellow, wire and grey wire and need
I have a purple wire, a yellow, wire and grey wire and need help installing a fan … read more
Sam I
Sam I
Electrician
B.S.
474 satisfied customers
Fan with light kit white wire, blue wire and black wire. Try
Fan with light kit white wire, blue wire and black wire. Try to connect to three way switch wires to ceiling box are white, red and black. … read more
Sam I
Sam I
Electrician
B.S.
474 satisfied customers
There is a low voltage lighting circuit in my flat. Can I
There is a low voltage lighting circuit in my flat. Can I buy standard fittings and have them converted to plug into the LV circuit?… read more
Plumbers_Mate
Plumbers_Mate
General Manager
Vocational, Technical or Trade Scho
2 satisfied customers
I have a sauna that is wired with 240 two wire for load (red
I have a sauna that is wired with 240 two wire for load (red and black) and a ground -- the neutral line (white) is not used -- currently it is not on a GFI and I would like to put it on a GFI - I wou… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
7,826 satisfied customers
Can you splice in outdoor string lights to a low voltage
Can you splice in outdoor string lights to a low voltage landscape system? … read more
Sam I
Sam I
Electrician
B.S.
474 satisfied customers
I have a kitchen with 8 low voltage (50W) recessed lights
I have a kitchen with 8 low voltage (50W) recessed lights around the perimeter ceiling. They have always burned out quickly, and all have been out for a long time now. Got tired of replacing them ever… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I have low voltage between black aqnd wires when i chech
hi i have low voltage between black aqnd white wires when i chech between black and ground i get 120 v whats happening? … read more
Sam I
Sam I
Electrician
B.S.
474 satisfied customers
Topic is low voltage landscape lighting. It appears that
Good Evening - Topic is low voltage landscape lighting. It appears that several lines do have power while other do not. For the lines that have no power, I have checked the following – • Light bulbs h… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
7,826 satisfied customers
I have a string of low voltage ikea Xmas led lights. I want
I have a string of low voltage ikea Xmas led lights. I want to connect them to my low voltage landscape lights. I have stripped the Xmas wires and connected them to my landscape lights. But they do no… read more
George Smith
George Smith
Vocational, Technical or Trade School
320 satisfied customers
I have low voltage (12V) suspended track lighting. The old
I have low voltage (12V) suspended track lighting. The old transformer died. I got a replacement 120V step down to 12V with a 150 Watt max. I tested the load which measured 120V. After connecting the … read more
James I
James I
Pool Plant Operator
21 satisfied customers
I need to know if this timer is workable with a low voltage
I need to know if this timer is workable with a low voltage fireplace switch. There are 2 wires, as pictured, black and red. No ground.https://smile.amazon.com/Skytech-Fireplace-Control-Wireless-Mount… read more
George Smith
George Smith
Vocational, Technical or Trade School
320 satisfied customers
I have a low voltage landscape lighting system. The power is
I have a low voltage landscape lighting system. The power is not getting to the box. The breakers to the box seem to be ok. Some of the external outkets have a GFI plug but not the one the lights are … read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
7,826 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x