I replaced my garage door circuit board that I was told to be the problem the door wouldn't work. It is a Genie 2020L. I was careful to reconnect all like before. The button to open the door now works but nothing happens when I push it. There is a blinking light when I press a button up by the circuit board, before nothing would light up. Please help!!! Thanks, Mickey
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Sensor must show steady light to close circuit and let opener work. If aligned, then there is a loose or broken wire. Try reaiming first to get steady light. Then check all wires . Another way to test and prove that is the issue is if u hold down the wired button at ur back door and the opener closes, then it is sensor issue. Good luck.
check all wired connections, check all wires to insure no nail or staples have nicked them. check troubleshooting section of manual for codes possible circuit board. it is either a liftmaster or genie sold under the craftsman name
The relay on the "unit's" circuit board was causing my light to stay on. If I tapped the unit with a stick the vibration would be enough for the contacts in the relay to open allowing the light in the unit to go out. Call The Genie company; the H8000D Genie garage door opener has a lifetime warranty but only if you are the original owner of your home. If you are the original owner you'll need to have a receipt for proof of purchase. If you don't have the receipt then a copy of your HUD-1 form that you received at closing when you passed papers on your home will be accepted as proof of (original ownership of your home). I have had my Genie H8000D for 12+ years now and so far I have replaced the black indoor wall switch, the out door mounted remote control and both internal circuit boards. After removing both old boards I found that the solder on both ends of one "blueish in color" resistor had come loose from the board because he solder failed. I installed the new replacement boards Genie sent me and the unit works as is should. On the old board the resister didn't look bad so I soldered it back onto the board and I'll keep it for a back up.
You have loose wire(s). After speaking with Genie Customer Service, they had me disconect a few of the wires and try operating the unit, to no avail. I noticed when reconnecting the wires that several other wires on the same row of connections were loose. I tightened all wire connections and VOILA, it works.
1.Open plastic cover in front of the Unit.
2. Look on upper right corner for a row of screws. Model 2020L has a verticle row of (6) connection screws numbered from top to bottom, 1-6. These screws connet to a green circuit board. Looks kind of like a video card from a computer.
3. Tighten all these screws top to bottom assuring good connection of all wires.
My contention is this. As the motor runs, it causes a vibration that tends to loosen those screws causing a faulty connection to the circuit board. Hope this works for you.