Hi all!

I have a 1/3hp GDO and I'm looking for advice about if I should buy a logic board or if there's more I can try first. The remotes were intermittently not working, then stopped working completely. I can still use the one button wall button to open and close the door. When I use the remote, the LED near the learn button flickers for as long as I'm pressing the transmitter. occasionally, I get 4 flashes on the LED.

I checked the sensors which had green lights on each side. I cleaned them and check the alignment. When I misaligned them the green LED flickered then went out as I adjusted further away. The garage is pre-wired behind sheetrock, and I don't see any shorts.

I looked at the logic board and saw a couple spots were solder had flaked away so I resoldered those spots but nothing has changed.

I also checked the voltage between the #2 and #3 posts and got 5.93dcv.

Thanks in advance for any help you can offer!

Andrew