Called out today due to water leaking into the drain pan. Upon arrival there was some water in the drain pan and a heavy clog in the drain line. Gave options for chemical treatment, and preventative maintenance. The insulation is soaked in the air handler so I recommended shutting the unit off for the night and running the fan only to help dry it out. Emergency pan is heavy rusted and not equipped with a float switch I’m the pan or drain line. Checked all electronics and motor components to ensure equipment is operating properly within manufacture specifications. Evaporator coil is corroded and rusted and joints. Blower wheel is dirty. Measured the temperature drop across the coil. Checked refrigerant pressures and took amp draws. Performed a drain solve treatment and removed the water from the pan as a member courtesy. Enrolled in maintenance agreement. Equipment is operating at this time. Machine is 10 years old and in poor shape, it can and will break at anytime. Thank