Bosch under-cabinet hood filter key flashing for 30 seconds after switch-off
Bosch's newer under-cabinet hoods keep an hour counter for the filters.
Mon–Sat, 8am–8pm
- Filter reminders
- Range hood filter and baffle service
- Source: Bosch
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What Filter key flashes slowly at switch-off
actually means.
Bosch's newer under-cabinet hoods keep an hour counter for the filters. When cleaning is due, the reminder shows only at the moment you turn the hood off, as a slow 30-second flash of the filter key. It keeps doing this each time until it is reset during the flashing.
Bosch range hood display · also shown as Clean filter reminder
What to do when Filter key flashes slowly at switch-off shows on the range hoodKind 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.
MakeBosch
Bosch range hoods and downdraft vents get a home visit in which the touch controls and the fan's timed shut-off are checked before anything is opened.
SourceBosch Undercabinet Hood User Manual (DUH and DUHP models)
Bosch under-cabinet hoods DUH30253UC, DUH56353UC, DUH80553UC, DUH86553UC and pull-out models DUHP0853UC, DUHP6853UC (manual 8001296852).
Before you book,
in this order.
Each step comes from Bosch's own guidance for Filter key flashes slowly at switch-off on its range hoods. Follow it to the end: the last card says whether this is a visit.
Clean the filters and the hood as the manual describes.
Turn the hood off so the key starts flashing again.
While it is flashing, press and hold the key until the flashing stops to reset the timer.
Book a visit if the reminder returns straight after a reset.
Still there?
It usually turns into range hood filter and baffle service. Book with the code and the model number.
What not to do
A flashing fan key during cooking is something else: the heat sensor has taken over the blower. The filter reminder only appears at switch-off.
What you may
notice with it.
The range hood problems Filter key flashes slowly at switch-off tends to arrive with. Answer these at the range hood before anyone is booked.
All problems
Where Filter key flashes slowly at switch-off usually leads
Range hood filter and baffle service.
Bosch
range hoods.
Bosch range hoods and downdraft vents get a home visit in which the touch controls and the fan's timed shut-off are checked before anything is opened.
Bosch range hood repairMore Bosch codes
Filter reminders on other makes
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.
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.
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 Bosch's own words
When it is time to clean the filters, the light of
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Bosch under-cabinet hoods DUH30253UC, DUH56353UC, DUH80553UC, DUH86553UC and pull-out models DUHP0853UC, DUHP6853UC (manual 8001296852).
Bosch Filter key flashes slowly at switch-off 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 areasTampa BayFL · 31 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
Questions
about Filter key flashes slowly at switch-off.
Can I clear Filter key flashes slowly at switch-off myself?
Why does my Bosch under-cabinet hood only flash when I turn it off?
I missed the 30 seconds on my Bosch hood. Do I have to wait for the next reminder?
Does the Bosch pull-out hood use the same reminder?
Back to your everyday
Still showing Filter key flashes slowly at switch-off?
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.