GDO moves down but not up
We had power outage last week. I had to open and close the garage door manually. Initially, everything seemed to be ok. But a couple of days later, it stopped working. My door is in close postion right now. When I push the wall control or remote control button, the lights come on and relay clicks but nothing else happens. I opened the cover and tried to adjust the down limit. If I move the down limit away from the center metal contact, I was able to make the motor chain move toward the door direction. But it won't move up (open). My safety sensors looked ok. One green one yellow and are stable. I tried making the center matel contact to come in contact with the lower limit but when I pushed the wall unit button it did the same thing - lights came on and clicked nothing else happened.
Is this a circuit board or rmp sensor problem?
Any help is appreciated.