Upon arrival I noticed condenser lineset and accumulator iced over. I pulled disconnect to stop refrigerant flow. Then I went to airhandler and removed panel. The evaporator coil was iced over. I took hose and I melted ice with water hose. Then installed panel and restarted condenser. It was showing low on refrigerant charge. Suction was around 32 degrees. Then I went and chevked filter. It was a pleated filter and do to be changed in a few weeks. I removed filter do to it being dirty and pressures came back to normal. I discussed with tent to replace filter sooner than recommended. The system is cooling and draining at this time.