Arrived at customers residence to replace evaporator coil proceeded to basement to remove leaking evaporator coil and install new evaporator at this time. Removed ez trap safety switch and CS1 safety switch to remove coil out of cabinet. Reattached both safety switches and brazed in refrigerant lines and continued on by pressure testing system 400psi and it held pressure. Found no leaks in braze joints at this time. After charging the system it is functioning properly at this time.