Wolf
Combustion Quality/Heat Exchanger Concern
Visible rust, soot, or discoloration around burner compartment or vent connection.
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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.
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Possible Causes
Improper combustion air supply, Blocked heat exchanger passages, Cracked heat exchanger on Wolf furnace, Incorrect gas pressure or orifice size
How to Fix / Troubleshooting
Critical safety: Sooting or signs of flue gas spillage can indicate a serious carbon monoxide hazard. Turn off the furnace and do not operate it until inspected by a qualified technician.
- Vent and air check: Ensure vent and intake terminations are clear and that the furnace has adequate combustion air per Wolf installation guidelines.
- Visual inspection: Look for heavy rust flakes or soot inside the burner compartment. Do not attempt to disassemble the heat exchanger yourself.
- Professional testing: A licensed technician should perform combustion analysis, inspect the heat exchanger, and verify gas input. Replacement of the Wolf heat exchanger or furnace may be required if cracks or severe blockage are found.
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Repair Difficulty
Professional Required
5/5
Required Part
Wolf Primary Heat Exchanger
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