Rust-colored water or staining around furnace base.

Safety first: Turn off power and water supply to any attached humidifier.

Homeowner checks:

• 1. Inspect humidifier: If a bypass or powered humidifier is attached to the Philco furnace, check for leaks at the water line, pad, and drain. Tighten fittings and replace the water panel if clogged.
• 2. Check condensate lines: Ensure all hoses are firmly attached and not dripping.
• 3. Clean up water: Dry the area to monitor for new leaks.

When to call a professional: Persistent rust or water may indicate internal corrosion or a compromised secondary heat exchanger. A technician should inspect and replace damaged components.