Condensate water backs up or drips from unintended places around a condensing Kospel furnace.

Safety: Condensate is mildly acidic. Wear gloves and eye protection when handling.

• Inspect trap: Locate the condensate trap under the heat exchanger. Remove and clean it of debris and sludge. Refill with clean water before reinstalling.
• Check drain line: Ensure the condensate pipe is not frozen, kinked, or blocked. Flush with warm water if necessary.
• Verify slope: The pipe should slope continuously downward to the drain to prevent standing water.

Persistent drainage issues may require rerouting the condensate line by a professional.