In West Columbia, SC, I worked on an American Standard Platinum 95 furnace with irregular cycling. The issue was traced to a malfunctioning pressure switch, which I replaced with a factory-authorized part. I also cleared the inducer motor housing of debris and inspected the venting system for blockages. While troubleshooting, I noticed wear on the igniter and replaced it with a compatible model. The condensate drain was flushed, and all safety switches were tested for functionality. The system was thoroughly calibrated, and multiple heating cycles confirmed the repair was successful, restoring reliable performance for the customer.