Customer said pan was full last night, they emptied, also said that unit was not cooling and she bumped the condensation pump and it pumped and then started cooling, I tested pump multiple times,it pumped every time. The pan had no water and the drain is clear. I looked at the front of drain pan in evaporator, I could not see any cracks. The coil will need to be completely removed to check the rest of pan. The pan is possibly cracked