A commerical customer reports that an air-conditioning unit in a small office building is not cooling on the first warm day.
The technician first goes to the thermostat and finds tht it is set at 75 degrees f, and the space temperature is 82 degrees f.
The air feels humid. No air is coming from the registers. The air handler is in the attic. An examination of the condensing unit shows that the suction line has ice all the way back to the compressor. The compressoris still running.
What is the likely problem and the recommended solution?