Garage Door Openers & Florescent lights

Solittle

Fleet Admiral
Joined
Apr 28, 2002
Messages
7,518
I recently added two florescent light fixtures to the cieling of our garage. One of them is an eight footer and is within 1' of the motor for the garage door opener. The garage door opener is opened and closed by either a wired switch by the door to the house or one of two remotes (one in one of the cars and the other mounted on the outside garage door frame). Everything worked just fine before I added the lights. Now the remotes will not work if the garage lights are on. They work if the lights are off. I suspect that there is some kind of interferance betweewn the light and the opener.

Any other possibilities or thoughts?
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Garage Door Openers & Florescent lights

Flourescent light "starters" often radiate harmless amounts of RFI. My guess is that they swamp the receiver in the mechanism.

Before changing anything else I would enclose the starters in grounded copper screening.
 

Bob_VT

Moderator & Unofficial iBoats Historian
Staff member
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May 19, 2001
Messages
26,066
Re: Garage Door Openers & Florescent lights

Can you locate a remote antenna so it is further away from the opener. I know there are remote antenna options for most and a simple move of about 10' should be fine.
 

Pierutrus

Senior Chief Petty Officer
Joined
Mar 25, 2007
Messages
721
Re: Garage Door Openers & Florescent lights

It's the tubes. :eek:
They spray RF. Moves the lights away from the opener.
And the ballast's ARE grounded when you screw them into the fixture.
Starter's are only used on very small fixtures that use transformer's.

Correct me if I'm wrong JB.:D
 

fat fanny

Lieutenant Commander
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Feb 9, 2006
Messages
1,935
Re: Garage Door Openers & Florescent lights

Had this problem once wrapped the ballast in aluminum foil and is it worked fine
 

Fireman431

Rear Admiral
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Sep 17, 2007
Messages
4,292
Re: Garage Door Openers & Florescent lights

Had this problem once wrapped the ballast in aluminum foil and is it worked fine

Foil is great. I use it as a hat to keep the government from reading my mind...
 

NSBCraig

Lieutenant Commander
Joined
Aug 21, 2007
Messages
1,907
Re: Garage Door Openers & Florescent lights

Foil is great. I use it as a hat to keep the government from reading my mind...

Oh come now they read it just fine it was the lack of data that made them shut down the project!
 

cribber

Lieutenant
Joined
May 29, 2008
Messages
1,338
Re: Garage Door Openers & Florescent lights

Flourescent lights are notorious for putting out RFI especially if they are only inches away from the motor assembly.
 

dvandsm64

Petty Officer 2nd Class
Joined
Jun 3, 2010
Messages
142
Re: Garage Door Openers & Florescent lights

do the lites and motor share a neutral??
 

Fireman431

Rear Admiral
Joined
Sep 17, 2007
Messages
4,292
Re: Garage Door Openers & Florescent lights

Oh come now they read it just fine it was the lack of data that made them shut down the project!

Zing!.....OK...Now I owe you one....

You gonna make St. Augustine?!?
 

Av8nBill

Petty Officer 2nd Class
Joined
Mar 16, 2010
Messages
151
Re: Garage Door Openers & Florescent lights

I replaced the light bulbs in my opener with 100w equivalent compact fluorescents and haven't had any trouble. I'm guessing the larger tubes and larger ballasts put out a LOT more interference. I was planning to mount some larger shop lights pretty close to the opener but am re-thinking it now! :eek:
 

Pierutrus

Senior Chief Petty Officer
Joined
Mar 25, 2007
Messages
721
Re: Garage Door Openers & Florescent lights

I replaced the light bulbs in my opener with 100w equivalent compact fluorescents and haven't had any trouble.

That's because the compact ones, or curly Q's as their called, only put out a minimum of RFI when they first start up and continue until they fill out completely. Then the RFI stops. Not the same with the tubes. They keep spraying.
If you have a signal tracer, like the "FOX & Hound", take the inductor and turn it all the way up. You can hear the RFI off of each.:D
 
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