Garage Door Safety Sensor Question? I replaced the safety sensors and the garage be working for...
I replaced the safety sensors and the garage be working for a day later it stopped working again. I bought the new sensors online but does anyone know how normally the sensors are defective or damaged during shipment? I know that the previous sensors be bad because the addressee won't light at adjectives but the new one worked for a while earlier it conked out. I check the alignment so that's not the problem so I am guessing that the new sensors are defective.
One other item that I don't comprehend is tha the sensor comes with two wires. I assume they are for drawing electricity. How exactly does the sensor transmit information to the introduction? I am asking because I could hook the sensors with investigational wires in casing wires are bad but I don't apprehend how they work.
Answers: What type of opener do you own? Different models of the openers have different photo eyes. If you hold a craftsmen/chamberlain/liftmaster what color is the learn code button?
There is a luck that the logic board is bad and not the photoeyes. What colors are the lights?
If you can answer these question I should be able to point you within the right direction. Good luck
The sensor generally uses a photo-sensitive device, usually a photo-diode or photo-resistor. That is connected to a high-impedance circuit contained by the opener.
As you noted, alignment is almost other the problem, but I had a odd problem with mine that be caused by a vehicle that have a bad fuel mixture - so doomed to failure that carbon from the car's exhaust covered the sensor just adequate to cause it to become intermittent.
Beyond something approaching that, you may have a bleak connection or a broken flex. Also, if the photosensor is a photodiode, polarity is likely exalted (tho' it almost assuredly would not work from the beginning if it be wrong - since it did work for a while, I'd guess either dirty sensor or electrics problem. Maybe a bug crawled into the sensor opening, cause a literal "bug in the system".