Flow Sense four bars

Duct restriction indicator; inspect and clear household exhaust.

What it means

Duct restriction indicator; inspect and clear household exhaust.

This explanation is shared only by models whose manufacturer documents the same code, meaning, and guidance.

Manufacturer source

Select your exact model below to open its manufacturer source. Manual editions and model revisions can differ.

If there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.