Upon arrival spoke with customer and we spoke about what’s been going on and what has been done to try and correct issue. Customer explained they had stat set to 65° at night, and I explained I do no recommend this because it will cause the coil to freeze up and cause air flow issues. Customer also explained they had just cleaned filter because it was dirty. I explained the stat was showing a high static issue but not sense the filter change. I checked filter and showed customer that with the dogs and cat hair this will cause the filter to get dirty quick and if there not checking the filter every month, and if need be sooner then that it can cause static issues with the systems. Turned system on and went over static, coil, blower, wiring, duct work, zone dampers, and wires all for the indoor system and everything checked out within specs. Went outside, made sure outdoor unit was within manufacturing specifications. Explained to customer to make sure the filter stays clean and not to