1. Most importantly, unplug the a/c unit from the electric wall socket for safety. 2. Remove the filter at the front of the unit. 3. Remove the 2 screws located behind the filter. 4. Open the front cover of the unit using flat screw driver. 5. Unscrew the attached Old electronic control board from the front cover of a/c to detach. 6. Unplug the Old electronic control board from the a/c unit. 7. Plug in the New electronic control board to the a/c unit. 8. Plug the a/c to the electric wall socket to test is the new electronic control board works before closing up everything.
I took the face of the air condition. Off removed the circuit board, cleaned everything down with the alcohol pad. Put it all back together. It seems to work fine. I’m thinking maybe from a heavy rain storm. Rain got inside there.. Nevertheless, I still have the board I purchased I guess I’ll keep it as a spare. Thanks again
