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A stainless baffle grease filter half slid out of the underside of an under-cabinet range hood, a small filter symbol glowing on the hood's control strip.

Bertazzoni light B flashing: mesh filters are due on an older KG hood

Bertazzoni's US FAQ explains that some KG hoods go into an alarm mode after 40 hours of use.

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Mon–Sat, 8am–8pm

  • Filter reminders
  • Range hood filter and baffle service
  • Source: Bertazzoni

Book a visit

Three short steps, about a minute.

or call (844) 398-3217

What Light B flashing
actually means.

Bertazzoni's US FAQ explains that some KG hoods go into an alarm mode after 40 hours of use. With the motor off, light B, the first-speed light, flashes to ask for the mesh grease filters to be cleaned.

Bertazzoni range hood display · also shown as first speed light flashing

What to do when Light B flashing shows on the range hood

Kind of codeFilter reminders

The hood has counted enough hours of fan time to ask for its filters: the mesh or baffle grease filters want a wash, or on a recirculating hood the charcoal filters want replacing. Most hoods count hours rather than measure grease, so the light comes on whether the filters are clean or not, and it stays on until it is reset with the key the manual names. A reminder that returns straight after a reset, or a hood that still pulls weakly with fresh filters, is worth a visit.

Usually leads toRange hood filter and baffle service

Cleaning or replacing what catches grease and odor: mesh and baffle filters, charcoal pads on recirculating hoods, and the grease channel.

Shows up asReading a Range Hood Error Code or Blinking Light

A range hood error code may appear as letters and numbers on a display, a light that blinks in a pattern, a filter reminder that will not clear, or a beep with the fan refusing to start.

MakeBertazzoni

A Bertazzoni range hood that has stopped pulling steam is inspected in your kitchen, beginning with the rating label hidden behind its grease filters.

SourceBertazzoni US frequently asked questions

Older Bertazzoni KG hoods with speed lights, as described in Bertazzoni's US FAQ. KG hoods with the digital display use F and C letters instead.

Before you book,
in this order.

Each step comes from Bertazzoni's own guidance for Light B flashing on its range hoods. Follow it to the end: the last card says whether this is a visit.

01

Take down the mesh filters and wash them.

02

Refit them once dry.

03

With the motor off, press the B and C buttons together to reset the alarm.

04

If light B keeps flashing, book a visit for the keypad.

Still there?

It usually turns into range hood filter and baffle service. Book with the code and the model number.

What not to do

Flashing lights on these hoods are a filter reminder and not a sign the lights or the blower are failing. If it is light C flashing instead, the charcoal filters are due.

What you may
notice with it.

The range hood problems Light B flashing tends to arrive with. Answer these at the range hood before anyone is booked.

All problems

Before you call

Reading a Range Hood Error Code or Blinking Light

All 7 causes, cheapest first

It also comes with

Close view of the front control strip of a stainless wall-mount chimney range hood on a tiled wall, a few abstract lit segments on its small display and one indicator blinking, the range hood's canopy filling the upper half of the frame. Problem

Reading a Range Hood Error Code or Blinking Light

7 causes, cheapest first

Where Light B flashing usually leads

Range hood filter and baffle service.

Mesh or baffle filters, charcoal pads and the grease channel · lowest.
Book a visit What the job involves

Bertazzoni
range hoods.

A Bertazzoni range hood that has stopped pulling steam is inspected in your kitchen, beginning with the rating label hidden behind its grease filters.

Bertazzoni range hood repair

More Bertazzoni codes

FC FC4A key flashing every 2 secondsA key flashing every 0.5 secondsF and C keys flashingS1 steadyS1 flashingT4 flashingT2 flashingT1 flashing
All 14 Bertazzoni codes

Filter reminders on other makes

BEST Fan LED bar flashes slowly for 30 seconds after the fan is turned offBlueStar Timer icon blinking, blower offBosch clean grease filterDacor Low button blinkingElica Grease FilterFaber Filter alarm LED on (steady)Falmec Red LED steady on with the fan offFisher & Paykel Filter button lit
All 55 codes of this kind
A stainless steel wall-mount chimney range hood fixed to a white subway tile wall in a US home kitchen, the range hood's rectangular chimney cover rising straight to the ceiling, soft steam rising from a pot into the canopy, the range hood filling the upper half of the frame, the cooking surface below cropped and out of focus at the bottom edge. Bertazzoni builds this

Wall-mount range hood

The chimney hood fixed to a bare stretch of wall above the burners, its canopy catching the rising smoke while a telescoping cover hides the duct that climbs to the ceiling.

 A slim stainless under-cabinet range hood mounted beneath white shaker wall cabinets in a US home kitchen, the range hood's two lamps glowing onto steam rising from a simmering pot, the range hood and the cabinets above it filling the upper half of the frame, the cooking surface below cropped and out of focus. Bertazzoni builds this

Under-cabinet range hood

The slim hood screwed to the bottom of the wall cabinet over the burners, venting up through that cabinet or back through the wall, or cleaning the air and returning it to the room.

 A large stainless island range hood hanging from the ceiling on its four-sided chimney over a kitchen island with a white stone top in a US home, steam rising from a pan into the range hood's canopy, the range hood centered in the upper half of the frame, the burners on the island below cropped and out of focus. Bertazzoni builds this

Island range hood

The hood that hangs from the ceiling over burners set into a kitchen island, open on all four sides, with its duct and wiring hidden inside a chimney that drops from above.

In Bertazzoni's own words

For KG hoods, flashing lights probably mean it is time to clean the filters.
Bertazzoni US frequently asked questions Bertazzoni US frequently asked questions

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Older Bertazzoni KG hoods with speed lights, as described in Bertazzoni's US FAQ. KG hoods with the digital display use F and C letters instead.

Bertazzoni Light B flashing range hood repair,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

A family cooking together under a stainless range hood in a bright kitchen.
For the heart of your home.

Questions
about Light B flashing.

Can I clear Light B flashing myself?
Take down the mesh filters and wash them. If it comes back, it needs a visit.
Are my Bertazzoni hood lights broken if they flash?
On an older KG hood, a flashing speed light usually means the filters are due. Clean them and reset with B and C.
How often will light B flash on a Bertazzoni KG hood?
Every 40 hours of use, according to Bertazzoni's FAQ.
Why won't my Bertazzoni reset when I press B and C?
The reset needs the motor off. Switch the blower off and try again.

Back to your everyday

Still showing Light B flashing?

Three things make the booking useful: the letters or blink pattern exactly as they showed, the full model number from the label behind the filters, and whether the fan still moves air on every speed. With those, the technician arrives with half the answer already worked out.

Schedule a repair Call (844) 398-3217
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