Ferroli furnace ignites with a loud bang or pop (delayed ignition).
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
Critical safety: Delayed ignition can damage the appliance and flue and may be dangerous. Turn off gas and power and do not continue to use the furnace.
User action:
- Do not attempt internal cleaning: Burner and gas valve adjustments require specialist tools.
Professional help: A licensed gas technician must clean the burner, check electrode position, and verify gas pressures and valve operation.
Repair Difficulty
Required Part
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