Sunlight on Safe T Beam Sensor

Reply

  #1  
Old 11-10-15, 04:46 PM
H
Member
Thread Starter
Join Date: Mar 2008
Location: Boulder, CO
Posts: 1,120
Received 5 Votes on 4 Posts
Sunlight on Safe T Beam Sensor

Can this cause the door not to open properly? The door opens a few inches and reverses. At this time of year the sun hits the sensor when the door opens. I thought the safety system only affected the door closing.
 
  #2  
Old 11-10-15, 04:48 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,964
Received 6 Votes on 6 Posts
You are right, it should never reverse itself in a up mode. Have you checked the up pressure setting? Generally the cross beams are shielded enough to where sunlight usually doesn't bother the spectrum of light they are putting out.
 
  #3  
Old 11-10-15, 05:41 PM
czizzi's Avatar
Member
Join Date: Jul 2007
Location: USA
Posts: 7,388
Received 15 Votes on 13 Posts
Check to make sure a spring has not broken. If the weight is too much it will over ride and not open he door. You could also try changing the sides of the safety beams, swap left to right to see if that helps.
 
  #4  
Old 11-10-15, 05:52 PM
H
Member
Thread Starter
Join Date: Mar 2008
Location: Boulder, CO
Posts: 1,120
Received 5 Votes on 4 Posts
Springs have been replaced, but too much resistance may be the culprit. This is a rental and some previous tenant sprayed some unknown sticky crap in the tracks. The door is pretty jerky. Will advise owner to clean and lube tracks, not with WD40. I like TriFlow.
 
  #5  
Old 11-10-15, 06:57 PM
G
Member
Join Date: Oct 2002
Location: Hamilton County, Ohio
Posts: 4,295
Received 2 Votes on 2 Posts
As to lubing the tracks, nothing works best. Any lube will attract and hold dust. Lube the axles of the rollers and the hinges.
As to the sensors, it is best to have the receiving sensor looking away from the sun, so it does not get blinded.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: