Symptom: After the garage door closes the lights will not go out. Pressing the wall switch will not turn them off either.
Most likely solution: the relay controlling the lights is stuck in the closed position.
Here is the garage door opener, its internal parts exposed:
There is a board for the I/O, remote (the one parallel to the ceiling) and one to control the motor and lights (perpendicular to the ceiling).
Note where the blue and white wires connect on the board (those wires go to the lights).
You can the follow the traces on the circuit board to see which relay they go to.
The relay is a Song Chuan 801H-1A-C.
I bought mine at mouser.com and here is a link to the specification sheet (PDF).
Remove the board:
remove the relay:
and put the new one in.
Put the board back in the garage door opener.
Nice. I have had that happen before also. I did this but after about 2 years if failed again. I decided to go with a external replaceable relay. Now if it fails i can just replace it without opening it up.
Hey man, can you do me a big big favor? You see that transformer on the board? The brown one. Can you get a measurement on the secondary winding? This part is proprietary and i cant find a replacement. Need to know what voltage to expect there. I sure would appreciate it. I will post back what transformer to use in case yours goes out as well.
I get around 20V, I would say that anywhere between 16V and 24V should work. Good luck!
Awesome information…!
Thanks for posting this. Very helpful. 2 Things I found out in the process. First, you can buy the controller board through Genie, but it is about the price of a new opener. Second, I was able to replace the relay without removing the controller board. The relay is easily accessible.