Preventative maintenence inspection on 1993 Rheem furnace. A leak was mentioned upon arrival, but no leak was found during inspection. Flushed condensate trap in case that is the issue. Current 16x25x1 air filter in good condition. Check again in 1-2 months. Clean flame sensor and check ignitor. Visual inspection of burners. Flush condensation trap and drain lines. Run test unit in heating mode. Temperature rise is within specs. Blower and inducer motors tested good. 3" pvc flue in good condition and no sign of leaks. 0PPM CO detected during testing. Despite age, system is operating in good condition with no issues found or suspected.