Upon arrival, spoke with customer. Explained where I would need to see and what I would be doing today. Customer showed me thermostats, and all returns. We went into the attic. Coil is clean with no leaks. Blower is clean. Wires all tight. Heat exchanger showing no signs of cracks. Blower amped at 1.4amps. Unit is level. Gas pressures are 3.4IWC within recommended range. Went outside, coil is clean. Contacter showing no signs of pitting. Capacitor checked out at 45/5MFD. System has pressure on it and the system turns over. Disconnect wires are tight. Priced up membership for customer so we could make sure the system stays clean and working properly. Customer did not want to sign up for the membership at this time due to not wanting to be locked into anything