Water leaking around the base of a high-efficiency (PVC vented) York furnace.

Safety: Turn off power before working around water and electrical components.

• Locate condensate system: On condensing York furnaces, find the plastic condensate trap and drain hoses near the inducer and bottom of the heat exchanger.
• Clear trap: Remove the trap and flush it with warm water until all debris is gone. Reinstall with correct orientation.
• Check hoses: Ensure all hoses are firmly connected and not cracked. Replace any brittle tubing with proper condensate tubing.
• Verify slope: The drain line should slope continuously downward to the floor drain or condensate pump. Adjust supports as needed.
• Test for leaks: Run the furnace and observe for drips. If water appears from the collector box or heat exchanger area, call a technician.