--- title: "BEST fan light blinking for 30 seconds after you switch off: the filters are due" description: "What Fan LED bar flashes slowly for 30 seconds after the fan is turned off means on BEST fan light blinking for 30 seconds after you switch off: the filters are…" url: "https://rangehooderepair.center/error-codes/best-fan-led-bar-flashing-after-off/" --- # BEST fan light blinking for 30 seconds after you switch off: the filters are due The control counts fan running time, and once it passes 30 hours it starts blinking the right end of the fan LED bar for half a minute each time you switch the fan off. ## What Fan LED bar flashes slowly for 30 seconds after the fan is turned off actually means. The control counts fan running time, and once it passes 30 hours it starts blinking the right end of the fan LED bar for half a minute each time you switch the fan off. It is asking you to wash the baffle filters and wipe the hood, and it keeps doing it after every cooking session until the timer is reset. On the HBN1 insert the same reminder shows as the fan key backlight blinking instead of a bar. BEST range hood display · also shown as Filter Cleaning Reminder, fan key backlight flashing slowly, right section of fan LED bar blinking What to do when Fan LED bar flashes slowly for 30 seconds after the fan is turned off shows on the range hood ### Kind of code Filter 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 to Range 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 as Reading 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. ### Make BEST BEST hood inserts and chimney hoods get a visit that traces the airflow from the filters up to wherever the blower is mounted. ### Source BEST HBN3 series built-in hood installation, use and care guide Documented on the HBN3, HBN5, HBN22 and HBN65 built-in hoods and the WCS1, WCP1 and WCT1 chimney hoods as the right section of the fan LED bar; on the HBN1 powerpack insert it is the fan key backlight. The WPP1 chimney hood uses a different pattern after 25 hours. ## Before you book, in this order. Each step comes from BEST's own guidance for Fan LED bar flashes slowly for 30 seconds after the fan is turned off on its range hoods. Follow it to the end: the last card says whether this is a visit. 01 Turn the hood off, let it cool, and slide out the baffle filters; BEST says they can go in the dishwasher with a detergent free of phosphate. 02 Wipe the grease rails and the underside of the hood while the filters are out, then put everything back. 03 With the fan off, press and hold the fan key for about 3 seconds while the light is still blinking to reset the 30-hour timer. 04 If the blink returns the very next time you cook, book a visit so the control can be checked. ### Still there? It usually turns into [range hood filter and baffle service](https://rangehooderepair.center/services/range-hood-filter-and-baffle-service/). Book with the code and the model number. ### What not to do This blink appears only in the 30 seconds after the fan is switched off, which is how it differs from Heat Sentry, where the fan light flashes while the blower is running on high by itself. It says nothing about the blower or the lights being broken. ## What you may notice with it. The range hood problems Fan LED bar flashes slowly for 30 seconds after the fan is turned off tends to arrive with. Answer these at the range hood before anyone is booked. [All problems](https://rangehooderepair.center/problems/) Before you call ### [Reading a Range Hood Error Code or Blinking Light](https://rangehooderepair.center/problems/range-hood-error-code/) [All 7 causes, cheapest first](https://rangehooderepair.center/problems/range-hood-error-code/) It also comes with - [**Range Hood Runs but Barely Pulls Smoke**](https://rangehooderepair.center/problems/range-hood-weak-suction/) - [**Grease or Oily Water Dripping From the Range Hood**](https://rangehooderepair.center/problems/range-hood-dripping-grease/) Problem ### Reading a Range Hood Error Code or Blinking Light 7 causes, cheapest first Where Fan LED bar flashes slowly for 30 seconds after the fan is turned off 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](https://rangehooderepair.center/services/range-hood-filter-and-baffle-service/) ## BEST range hoods. BEST hood inserts and chimney hoods get a visit that traces the airflow from the filters up to wherever the blower is mounted. [BEST range hood repair](https://rangehooderepair.center/brands/best/) More BEST codes [Fan LED bar flashes slowly and fan speed cannot be changed](https://rangehooderepair.center/error-codes/best-heat-sentry-fan-light-flashing/) [All 4 blower speed lights flash for 30 seconds](https://rangehooderepair.center/error-codes/best-four-speed-lights-flashing/) [Speed 4 button flashing, speed 3 lit](https://rangehooderepair.center/error-codes/best-speed-4-flashing/) [Calibration button light blinks continuously](https://rangehooderepair.center/error-codes/best-calibration-light-blinking/) [Speed indicator LED flashing after pressing delay-off](https://rangehooderepair.center/error-codes/best-speed-light-flashing-delay-off/) [WiFi LED flashing](https://rangehooderepair.center/error-codes/best-wifi-led-flashing/) Filter reminders on other makes [Bertazzoni F](https://rangehooderepair.center/error-codes/bertazzoni-f/) [BlueStar Timer icon blinking, blower off](https://rangehooderepair.center/error-codes/bluestar-timer-icon-fan-off/) [Bosch clean grease filter](https://rangehooderepair.center/error-codes/bosch-clean-grease-filter/) [Dacor Low button blinking](https://rangehooderepair.center/error-codes/dacor-low-button-blinking/) [Elica Grease Filter](https://rangehooderepair.center/error-codes/elica-grease-filter/) [Faber Filter alarm LED on (steady)](https://rangehooderepair.center/error-codes/faber-filter-alarm-led-on/) [Falmec Red LED steady on with the fan off](https://rangehooderepair.center/error-codes/falmec-red-led-steady/) [Fisher & Paykel Filter button lit](https://rangehooderepair.center/error-codes/fisher-and-paykel-filter-button-lit/) [All 61 codes of this kind](https://rangehooderepair.center/error-codes/#family-filter) BEST 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. BEST 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. BEST builds this ### Range hood insert The working core of a custom hood: a steel liner or power pack carrying the blower, filters, lights and controls, fitted inside a hood built of wood, plaster or metal by a cabinetmaker. ## In BEST's own words > the right section of the fan LED bar flashes slowly for 30 seconds [BEST HBN3 series built-in hood installation, use and care guide](https://bestrangehoods.com/api/media/file/HBN3%20Install%20Guide-0cb4607b-c42f-4f5d-bfc3-c5e629205406.pdf) [BEST HBN3 series built-in hood installation, use and care guide](https://bestrangehoods.com/api/media/file/HBN3%20Install%20Guide-0cb4607b-c42f-4f5d-bfc3-c5e629205406.pdf) [BEST HBN1 series powerpack insert quick start manual](https://bestrangehoods.com/api/media/file/Installation_Guide_HBN1_Trilingual-f249a805-adcf-44ce-87a7-d0e5ebaeb610.pdf) [BEST WCS1, WCP1 and WCT1 chimney hood installation guide](https://bestrangehoods.com/api/media/file/Installation-Guide-WCS1-WCP1-WCT1-171b9010-579b-4ecb-90c9-7f75487811ac.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Documented on the HBN3, HBN5, HBN22 and HBN65 built-in hoods and the WCS1, WCP1 and WCT1 chimney hoods as the right section of the fan LED bar; on the HBN1 powerpack insert it is the fan key backlight. The WPP1 chimney hood uses a different pattern after 25 hours. ## BEST Fan LED bar flashes slowly for 30 seconds after the fan is turned 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. 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Turn the hood off, let it cool, and slide out the baffle filters; BEST says they can go in the dishwasher with a detergent free of phosphate. If it comes back, it needs a visit. ### How do I stop the blinking fan light on my BEST hood? Clean the filters, then with the fan off hold the fan key for about 3 seconds while the light is still blinking. That resets the 30-hour count and the blink stops. ### Why does my BEST hood blink every time I turn it off? The reminder repeats after every cooking session until someone resets it. Cleaning alone does not clear it; the reset press has to be made during the 30-second blink. ### Do BEST baffle filters need replacing when the reminder blinks? No, they are washable. BEST calls its hybrid baffle filters dishwasher safe and suggests a detergent without phosphate, since phosphate can discolor the metal without hurting how the filter works. --- **[Read on the site: BEST fan light blinking for 30 seconds after you switch off: the filters are due](https://rangehooderepair.center/error-codes/best-fan-led-bar-flashing-after-off/)** **[Book a visit with RangeHoodeRepair.center](https://rangehooderepair.center/schedule/)**