I arrived out our clients home for a single system with 2 zone unit not cooling properly. James first showed me the locations to booth thermostats and the attic access. I then proceeded outside to the outdoor equipment. I immediately noticed the suction line to be frozen over. I shut the unit off at the outdoor disconnect and tested the capacitor and contactor. The capacitor was reading lower than previously measured during the august 4th maintenance visit. I then went into the attic and found the evaporator coil completely frozen. I shared my finding with James and we discussed either thawing out the coil by turning on the furnace or shutting off the compressor and allowing the ice to naturally melt. We agreed that allowing the ice to melt naturally was the best option to not cause any potential damage to the evaporator coil. James elected to replace the capacitor today and we are scheduled to return tomorrow to preform a leak search on the coil. We will also provide a filter as a cou