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

Safety: Turn off power before working near electrical components. Water and electricity are a dangerous combination.

Steps:

• Locate condensate system: Identify the condensate trap and drain tubing connected to the furnace and, if present, the PVC flue.
• Clear trap and drain: Remove the trap (note orientation) and flush it with water to remove debris. Use a wet/dry vacuum on the drain line outlet to clear blockages.
• Reconnect tubing: Ensure all hoses are firmly attached and routed with a continuous downward slope to the drain.
• Inspect collector box: Look for cracks or leaks at the condensate collector box on the side of the heat exchanger. Replacement may be required if damaged.