--- title: "Elica Haiku keys T5 and T6 flashing quickly: the carbon filter is due" description: "What Keys T6 and T5 flashing quickly means on Elica Haiku keys T5 and T6 flashing quickly: the carbon filter is dues, what to check before booking, and when it…" url: "https://rangehooderepair.center/error-codes/elica-keys-flashing-quickly/" --- # Elica Haiku keys T5 and T6 flashing quickly: the carbon filter is due Recirculating Haiku hoods use an activated carbon filter to take smells out of the air. ## What Keys T6 and T5 flashing quickly actually means. Recirculating Haiku hoods use an activated carbon filter to take smells out of the air. When that filter is saturated, T6 and T5 light with a quick flash during the first seconds after switch-on. The Haiku's carbon filter is the washable kind: Elica says it can be washed about every two months and dried in the oven, following the manual. Elica range hood display · also shown as carbon filter saturation indicator What to do when Keys T6 and T5 flashing quickly 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 Elica Elica hoods, whether ducted outdoors or set up to recirculate, are serviced on site with the filters and controls checked first. ### Source Elica Haiku (EHK613SS to EHK648SS) instructions for mounting and use, USA and Canada Haiku EHK series, recirculating (filter) version. ## Before you book, in this order. Each step comes from Elica's own guidance for Keys T6 and T5 flashing quickly on its range hoods. Follow it to the end: the last card says whether this is a visit. 01 Remove the grease filter, then the carbon filter, with the hood off. 02 Wash the carbon filter in hot water or a dishwasher without dishes, then dry it as the manual describes. 03 Hold T6 and T5 until they flash quickly to reset. 04 If the odor stays after a fresh or washed filter, book a visit to check the airflow. ### 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 A quick flash right after you hold T6 and T5 is only the reset confirmation, not the alarm. The quick flash in the first 10 seconds after switch-on is the carbon filter signal. ## What you may notice with it. The range hood problems Keys T6 and T5 flashing quickly 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/) Problem ### Reading a Range Hood Error Code or Blinking Light 7 causes, cheapest first Where Keys T6 and T5 flashing quickly 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/) ## Elica range hoods. Elica hoods, whether ducted outdoors or set up to recirculate, are serviced on site with the filters and controls checked first. [Elica range hood repair](https://rangehooderepair.center/brands/elica/) More Elica codes [CArE](https://rangehooderepair.center/error-codes/elica-care/) [Grease Filter](https://rangehooderepair.center/error-codes/elica-grease-filter/) [Charcoal Filter (flashing)](https://rangehooderepair.center/error-codes/elica-charcoal-filter/) [Keys T6 and T5 flashing very slowly](https://rangehooderepair.center/error-codes/elica-keys-flashing-very-slowly/) [Snd](https://rangehooderepair.center/error-codes/elica-snd/) [Speed 4/5 key flashing](https://rangehooderepair.center/error-codes/elica-speed-5-key-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/) [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 59 codes of this kind](https://rangehooderepair.center/error-codes/#family-filter) Elica 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. Elica 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. Elica 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 Elica's own words > Keys T6 and T5 on with light flashing quickly [Elica Haiku (EHK613SS to EHK648SS) instructions for mounting and use, USA and Canada](https://damsrv.elica.com/doc/Americas/INSTRUCTION_MANUALS/INSTALLMANUAL_LIB0204934_HAIKU_EHK613SS_EHK624SS_EHK636BL_EHK636SS_EHK636WH_EHK648SS_compressed.pdf) [Elica Haiku (EHK613SS to EHK648SS) instructions for mounting and use, USA and Canada](https://damsrv.elica.com/doc/Americas/INSTRUCTION_MANUALS/INSTALLMANUAL_LIB0204934_HAIKU_EHK613SS_EHK624SS_EHK636BL_EHK636SS_EHK636WH_EHK648SS_compressed.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Haiku EHK series, recirculating (filter) version. ## Elica Keys T6 and T5 flashing quickly 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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Remove the grease filter, then the carbon filter, with the hood off. If it comes back, it needs a visit. ### Can I wash the carbon filter on my Elica Haiku? Yes. Elica describes a washable activated carbon filter for the Haiku, cleaned in hot water or a dishwasher running with no dishes, then dried. ### Does a ducted Elica Haiku need a carbon filter? No. The carbon filter is for the filter (recirculating) version only. ### How do I know the Elica reset worked? The keys flash quickly while you hold them and then return to normal. --- **[Read on the site: Elica Haiku keys T5 and T6 flashing quickly: the carbon filter is due](https://rangehooderepair.center/error-codes/elica-keys-flashing-quickly/)** **[Book a visit with RangeHoodeRepair.center](https://rangehooderepair.center/schedule/)**