On arrival found system operational. Customer stated that system did not run for 4 hours. I found the dirty and replaced. Inducer motor making slight noise. Recommended replacement(customer declined at this time).Heard condensate in inducer motor. Removed condensate trap and found trap and drain line were plugged. Cleared obstruction. Let system run for 30 mins and system never shut off. No other issues found. The system operational on departure.
