Range Hood Diagnostics

Wolf Range Hood
Error Codes

Meanings, severity levels, safe checks you can perform, and when to call a technician.

Enter the code shown on your range hood display

Is it safe to keep using it?

Depends on code severity. Low/Medium codes often allow continued use, High severity requires immediate stop.

Can error codes be reset?

Some codes clear after power cycle. Persistent codes indicate underlying issues needing repair.

When should I stop using it?

Stop immediately for water leak codes, burning smell, or any High severity error.

Most Common Codes

FG FC BLOW-FAIL SELF-ON-OFF LIGHT-FAIL CHARCOAL

All Codes

BLOW-FAIL CHARCOAL FC FG LIGHT-FAIL SELF-ON-OFF

Error Code Directory

Click any code for detailed troubleshooting steps

Low Medium High

Code Meaning Severity Common Symptom

BLOW-FAIL Blower Will Not Run Medium Touching or turning the speed control advances the display indicator but the blower does not start and no air movement is felt. View CHARCOAL Pro Hood Charcoal Due Low The hood appears to be running normally but the air returning to the kitchen carries lingering odors from earlier meals — a sign that the charcoal is saturated. View FC Charcoal Filter Replacement Low After roughly 30 hours of cumulative runtime in recirculating mode, the FC label appears to remind the user to replace the charcoal filter. View FG Filter Clean Reminder Low The FG label appears on the black glass hood display after roughly 100 hours of cumulative blower runtime, signaling that grease filters need cleaning. View LIGHT-FAIL Hood Lights Out Low Touching the light control produces no visible effect — the lights remain off regardless of whether the hood is running or idle. View SELF-ON-OFF Self-Switching Hood Medium The blower starts running while no one has touched the controls, sometimes while no cooking is happening at all. View