Wolf Range Hood Grease Fire Prevention Advisory

Wolf range hood safety notice — Accumulated grease in a Wolf range hood is a fire hazard, especially above a high-BTU Wolf gas range or rangetop. The FG filter clean reminder on Wolf V Series hoods exists to prevent this accumulation, and ignoring the reminder shifts grease from the cleanable filters into the blower housing where it becomes increasingly difficult to remove and increasingly dangerous.

How range hood grease fires start

Cooking vapors that escape past loaded grease filters condense on cooler surfaces inside the blower housing. Over weeks and months, this condensation builds up into layers of cooked-on grease. A single cooking fire below the hood — an oil splash, an overheated pan — can ignite the accumulated grease, and because the blower is actively moving air through the affected area, the fire spreads rapidly along the duct path.

The Wolf filter reminder schedule

  • FG indicator: approximately 100 hours of blower runtime, which is 2-3 months for most households
  • FC indicator (recirculating hoods): approximately 30 hours, 3-4 months typical
  • Heavy frying or wok cooking shortens both intervals — clean more frequently than the reminder suggests if you cook heavy-oil daily

Correct filter cleaning

  1. Remove the aluminum mesh grease filters from under the hood
  2. Run through a dishwasher cycle OR hand wash with a commercial kitchen degreaser
  3. Let dry completely before reinstalling — do not return wet filters to the hood
  4. Reset the FG reminder by holding DELAY until “FF” appears on the display

If you have been ignoring reminders

Schedule a professional deep cleaning service. A certified Wolf technician opens the blower housing, cleans the blower wheel and surrounding surfaces, and inspects the duct path for grease buildup. This service catches up months of missed maintenance and returns the hood to safe operating condition. Deep cleaning service starts from $185.

Kitchen fire readiness

  • Keep a Class K kitchen fire extinguisher accessible (or a Class ABC rated for small fires)
  • Never throw water on a grease fire — it spreads the flames
  • Smother pan fires with a metal lid or baking soda
  • If a fire reaches the range hood, evacuate and call 911 — hood fires can involve insulation and duct materials that are difficult to extinguish
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