--- title: "Elica Haiku keys T5 and T6 flashing very slowly: grease filter maintenance" description: "What Keys T6 and T5 flashing very slowly means on Elica Haiku keys T5 and T6 flashing very slowly: grease filter maintenances, what to check before booking, and…" url: "https://rangehooderepair.center/error-codes/elica-keys-flashing-very-slowly/" --- # Elica Haiku keys T5 and T6 flashing very slowly: grease filter maintenance The Haiku has no text display, so it signals filters with two keys. ## What Keys T6 and T5 flashing very slowly actually means. The Haiku has no text display, so it signals filters with two keys. A very slow flash on T6 and T5 asks for grease filter maintenance; the warning only shows during the first 10 seconds after the hood is switched on, so it is easy to miss. Elica range hood display · also shown as grease filter saturation indicator What to do when Keys T6 and T5 flashing very slowly 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 models EHK613SS, EHK624SS, EHK636BL, EHK636SS, EHK636WH and EHK648SS sold for the USA and Canada. ## Before you book, in this order. Each step comes from Elica's own guidance for Keys T6 and T5 flashing very slowly on its range hoods. Follow it to the end: the last card says whether this is a visit. 01 Watch the keys for the first 10 seconds after switching the hood on to confirm the pattern. 02 Clean the grease filter with the hood off. 03 Press and hold T6 and T5 together until they flash quickly to reset the indicator. 04 If the pattern returns straight after a reset, book a visit. ### 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 on the same two keys is the odor filter signal, not the grease filter. A single key flashing on its own at the top speed is just speed 5 being selected. ## What you may notice with it. The range hood problems Keys T6 and T5 flashing very slowly 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 Keys T6 and T5 flashing very slowly 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 quickly](https://rangehooderepair.center/error-codes/elica-keys-flashing-quickly/) [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 very slowly: the grease filter requires maintenance. [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 models EHK613SS, EHK624SS, EHK636BL, EHK636SS, EHK636WH and EHK648SS sold for the USA and Canada. ## Elica Keys T6 and T5 flashing very slowly 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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Watch the keys for the first 10 seconds after switching the hood on to confirm the pattern. If it comes back, it needs a visit. ### Why do I only sometimes see the filter light on my Elica Haiku? The warning is shown during the first 10 seconds after the hood is switched on, then the keys return to normal. ### How do I reset the filter light on an Elica Haiku? Press and hold T6 and T5 together; they flash quickly to confirm the reset. ### Is a slow flash on my Elica about the grease or the carbon filter? A very slow flash is the grease filter. A quick flash is the carbon odor filter. --- **[Read on the site: Elica Haiku keys T5 and T6 flashing very slowly: grease filter maintenance](https://rangehooderepair.center/error-codes/elica-keys-flashing-very-slowly/)** **[Book a visit with RangeHoodeRepair.center](https://rangehooderepair.center/schedule/)**