Water leaking around the base of the furnace.

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

Step-by-step checks (condensing Philco furnaces):

• 1. Locate condensate trap and drain: Find the plastic trap and tubing connected to the furnace drain outlet.
• 2. Clear clogs: Disconnect the drain line and flush it with warm water. Clean the trap of slime and debris. Reassemble securely.
• 3. Verify slope: Ensure the drain line slopes continuously downward to the floor drain or pump.
• 4. Inspect for cracks: Check the condensate collector box and trap for cracks or leaks. Replace if damaged.

When to call a professional: If leaks persist or are inside the heat exchanger area, a technician should inspect the internal condensate channels and replace any failed Philco condensate components.