I had an error message on the display "no cell power" to the chlorinator. I looked at the back of the PCB G1-011049-f1 and saw darken solder joint on the top right hand relay. I order the relay and replaced it. After re-assembling I only hear a click and can no longer see anything on the display unit. Any ideas? I took pictures and marked all wires prior to removal. what can now cause the display to not turn on?