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They Must be Giants

By
Home Inspector with JRV Home Inspection Services, LLC HOI 394

Garage doors and automatic openers are dangerous devices. Approximately 20,000 injuries and a few deaths, usually to small children, occur each year from these machines. Because of these inherent dangers various safety mechanisms have been incorporated into the automatic openers.

The most visible and the one most everyone is familiar with is the sensor eye. It simply works by shooting a beam of light between the two sensors. When the door is in motion and the beam is broken by say a child, the door automatically reverses.

The position of installation is therefore vitally important to this safety mechanism working properly and protecting people from injury. The sensor should be installed no more than six inches from the ground next to the base of the door track.

The installer of the sensor in the first photo must have not read the manual or he thought the residents were very tall. This is located about four feet above the ground. Funny thing was the installer left his company information on the wall in case the owner needed service.

The second photo, which coincidently was taken the following day, is of another improper installation technique. That's the two sensor eyes stuffed into a gap along the garage attic stairway framing. Can you imagine if a bug or mouse gets in between them? You would then not be able to operate the door. But the most obvious problem is this safety device has been render useless.

There were young children living in this home.

You can read more about garage door safety here.

Take a look at the sensor eyes installed in your garage. If they are high, call a professional and have them lowered to the correct and safe height.

James Quarello
JRV Home Inspection Services, LLC

Posted by

James Quarello
Connecticut Home Inspector
Former SNEC-ASHI President
JRV Home Inspection Services, LLC

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Gene Allen
Fathom Realty - Cary, NC
Realty Consultant for Cary Real Estate

Looks like the guy didn't know how to tap into the concrete block or was too lazy.

Dec 02, 2008 03:43 AM
James Quarello
JRV Home Inspection Services, LLC - Wallingford, CT
Connecticut Home Inspector

Gene, I think the latter is the most likely reason.

Dec 02, 2008 04:13 AM
Barbara S. Duncan
RE/MAX Advantage - Searcy, AR
GRI, e-PRO, Executive Broker, Searcy AR

When we built a house in 1987 evidently the sensors weren't required cause we didn't have any until the door tore up and we had to redo it.

Dec 02, 2008 04:51 AM
Erby Crofutt
B4 U Close Home Inspections&Radon Testing (www.b4uclose.com) - Lexington, KY
The Central Kentucky Home Inspector, Lexington KY

Sensors weren't required until 1993 or so.  MOST people put them where they belong, less than six inches off the floor at each side of the door.

But I'd bet most inspectors have found them in some interesting places like James has.

My favorite was taped face to face on a rafter in the attic over the garage!

Wonder how likely they are to reverse the door when a kid or pet is under it?

Dec 02, 2008 05:55 AM
James Quarello
JRV Home Inspection Services, LLC - Wallingford, CT
Connecticut Home Inspector

Barbara, That was before they were required.

Erby, I have seen them taped together a few times as well.

Dec 02, 2008 06:22 AM
Steven L. Smith
King of the House Home Inspection, Inc. - Bellingham, WA
Bellingham WA Home Inspector

James,

Had a student in an inspection class once who explained why he took the sensors up from near the floor and mounted them high, pointed at each other. Darn thing is I forget what the reason was that he did this. It was logical to him. At that low level they were impeding his ability to do something but what does not seem to be popping into my head. Can you think of a reason to do this, even an illogical one?

Dec 02, 2008 09:57 AM
Frank Torre
Torre Inspection Service, LLC 888-202-8869 - Hicksville, NY

Hi James, wow if I saw installation like that I would get worried about what the rest of the house is going to look like.

Dec 02, 2008 12:23 PM
Jack Gilleland
Home Inspection and Investor Services, Clayton - Clayton, OH

I remember one when I couldn't find them until I traced the wire to a cabinet.  They weren't taped together just sitting there facing each other.  You wonder what these people are thinking.

Dec 02, 2008 02:29 PM
James Quarello
JRV Home Inspection Services, LLC - Wallingford, CT
Connecticut Home Inspector

Steven, I can't think of reason why you would move them high. If this student was young maybe it interfered with some game or how about an RC car. I'm drawing a blank. This seems like a good question for the B man. Charlie whwere are you?

Dec 02, 2008 11:02 PM
James Quarello
JRV Home Inspection Services, LLC - Wallingford, CT
Connecticut Home Inspector

Frank,  Like I said, and this is most often the case, these were installed by a "professional". I don't feel this has much bearing on the rest of the house.

Jack, Usually when I don't seem them I start tracing wires. As Steven said in their mind there is a logical reason, not safe, but logical.

Dec 02, 2008 11:07 PM
Erby Crofutt
B4 U Close Home Inspections&Radon Testing (www.b4uclose.com) - Lexington, KY
The Central Kentucky Home Inspector, Lexington KY

Logic:  I have to have these things someplace or my opener won't work.

Reasoning:  If I put them here, I don't have to bend over and get down low to install them!

Dec 02, 2008 11:40 PM
Steven L. Smith
King of the House Home Inspection, Inc. - Bellingham, WA
Bellingham WA Home Inspector

James,

It was convoluted logic, but he had a very definite reason for it. It will probably come to me in the night, I will give it some thought. It was a funny reason but made sense to him.

Dec 05, 2008 08:17 AM
Steven L. Smith
King of the House Home Inspection, Inc. - Bellingham, WA
Bellingham WA Home Inspector

James,

Ran into that the other day. I said there were no eyes. He said there sure are, the door will not operate without them. He then said that, for that reason, he had them mounted together. His excuse was he likes to store things really close to the doors and the eyes won't allow that.

Dec 16, 2008 02:29 PM
James Quarello
JRV Home Inspection Services, LLC - Wallingford, CT
Connecticut Home Inspector

Steven, Must've been hard to not roll your eyes when he gave you that oh so logical reason. :0

Dec 16, 2008 11:31 PM