Rust-colored water or staining around furnace or vent connections.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Corrosion can lead to flue gas leaks. If you suspect exhaust leakage, shut down the furnace and call a professional.
Homeowner checks:
- Visual inspection: Look for wet spots or rust trails around the PVC vent connections and condensate hoses.
- Tighten clamps: Gently tighten hose clamps on condensate connections if loose.
A technician should pressure-test the heat exchanger, inspect the collector box, and repair or replace corroded components.
Repair Difficulty
Required Part
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