First the green light on the power unit circuit board flashes 7 times. I bought a new remote since the switch on my old one was worn out. I reset the dip switches. Went through the set up. The remote works for a few cycles then does not. Then mysteriously works then goes out again. Circuit board on the power unit circuit board still flashing 7 times. Help!!

Code indicates a misaligned photo cell or faulty wiring of photo cell.