--- title: "Smeg four LEDs blinking: 100 hours, filters due" description: "What All 4 LEDs blinking means on Smeg four LEDs blinking: 100 hours, filters dues, what to check before booking, and when it is not a failure at all." url: "https://rangehooderepair.center/error-codes/smeg-4-leds-blinking/" --- # Smeg four LEDs blinking: 100 hours, filters due Smeg's push-button hoods count running time and, every 100 hours, blink all four LEDs at once. ## What All 4 LEDs blinking actually means. Smeg's push-button hoods count running time and, every 100 hours, blink all four LEDs at once. The message is to clean the metal filters and, on a recirculating hood, to replace the charcoal. Smeg range hood display · also shown as filters cleaning warning What to do when All 4 LEDs blinking 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 Smeg A Smeg hood with a fan that won't start or lamps that won't light is seen in your kitchen, and the visit begins at its switch. ### Source Smeg instruction manual, KD, KT, KPF and KUC hood series Smeg KD, KT, KPF, KUC and push-button KPRU hoods covered by the series manuals 914776191 and 91477B399. ## Before you book, in this order. Each step comes from Smeg's own guidance for All 4 LEDs blinking on its range hoods. Follow it to the end: the last card says whether this is a visit. 01 Switch off and take down the grease filters to clean them. 02 On a recirculating hood, fit new charcoal filters as well. 03 Press the reset button to restart the 100-hour count. 04 If the LEDs keep blinking after the reset, book a visit to check the push-button board. ### 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 Four LEDs blinking together is not a sign that all four speeds have failed. A single LED blinking over one speed key is the ten-minute timer, not the filter message. ## What you may notice with it. The range hood problems All 4 LEDs blinking 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 - [**Grease or Oily Water Dripping From the Range Hood**](https://rangehooderepair.center/problems/range-hood-dripping-grease/) - [**Range Hood Runs but Barely Pulls Smoke**](https://rangehooderepair.center/problems/range-hood-weak-suction/) Problem ### Reading a Range Hood Error Code or Blinking Light 7 causes, cheapest first Where All 4 LEDs blinking 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/) ## Smeg range hoods. A Smeg hood with a fan that won't start or lamps that won't light is seen in your kitchen, and the visit begins at its switch. [Smeg range hood repair](https://rangehooderepair.center/brands/smeg/) More Smeg codes [Speed keys flashing](https://rangehooderepair.center/error-codes/smeg-speed-keys-flashing/) [LED over a speed key blinking](https://rangehooderepair.center/error-codes/smeg-timer-led-blinking/) [Turbo key flashing](https://rangehooderepair.center/error-codes/smeg-turbo-flashing/) [24h keys flashing](https://rangehooderepair.center/error-codes/smeg-24h-flashing/) Filter reminders on other makes [Bertazzoni F](https://rangehooderepair.center/error-codes/bertazzoni-f/) [BEST Fan LED bar flashes slowly for 30 seconds after the fan is turned off](https://rangehooderepair.center/error-codes/best-fan-led-bar-flashing-after-off/) [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/) [All 61 codes of this kind](https://rangehooderepair.center/error-codes/#family-filter) Smeg 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. Smeg 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. Smeg 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 Smeg's own words > When all the 4 LEDs blink at the same time (which is programmed to happen every 100h of operation) [Smeg instruction manual, KD, KT, KPF and KUC hood series](https://doc.smeg.it/qr/914776191/EN) [Smeg instruction manual, KD, KPF, KPRU, KT and KUC hood series](https://doc.smeg.it/qr/91477B399/EN) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Smeg KD, KT, KPF, KUC and push-button KPRU hoods covered by the series manuals 914776191 and 91477B399. ## Smeg All 4 LEDs blinking 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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Switch off and take down the grease filters to clean them. If it comes back, it needs a visit. ### How often will my Smeg hood blink for filters? Every 100 hours of fan use. ### Where is the reset on a Smeg push-button hood? The panel has a dedicated reset button; pressing it restarts the 100-hour count. ### Do I have to change charcoal filters every time my Smeg blinks? Only on a recirculating installation, and only when they are due; ducted hoods need the grease filters cleaned. --- **[Read on the site: Smeg four LEDs blinking: 100 hours, filters due](https://rangehooderepair.center/error-codes/smeg-4-leds-blinking/)** **[Book a visit with RangeHoodeRepair.center](https://rangehooderepair.center/schedule/)**