Furnace exhaust has soot?

Start with the exact RV and component identity

Record the RV year, manufacturer and model. For appliance or chassis-system problems, also record the component manufacturer, model number, serial number and any displayed fault code. Exact identification matters for repair procedures, parts fitment, warranty and recall information.

Useful information to collect

• What the system does and does not do
• When the symptom began
• Any fault/error code
• 12-volt, shore-power or propane conditions when relevant
• Photos of the component data plate and visible damage
• Previous repairs or recently replaced parts