--- title: "Sub-Zero CLEAN — time to sanitize" description: "What CLEAN flashing means on Sub-Zero CLEAN — time to sanitizes, what to check before booking, and when it is not a failure at all." url: "https://appliancemaintenance.center/error-codes/sub-zero-clean-flashing/" --- # Sub-Zero CLEAN — time to sanitize Sub-Zero's own ice maker guide has CLEAN illuminate steadily during the cleaning cycle, then flash to signal it is time to add the maker's own cleaner and sanitizer to the spray area. ## What CLEAN flashing actually means. Sub-Zero's own ice maker guide has CLEAN illuminate steadily during the cleaning cycle, then flash to signal it is time to add the maker's own cleaner and sanitizer to the spray area. Sub-Zero home appliance display What to do when CLEAN flashing shows on the home appliance ### Kind of code Reminders, not failures Nothing has broken; the appliance has been counting hours, cycles or gallons and is asking for its routine care. A refrigerator lights a filter icon after about six months of water, a front-load washer suggests a tub-clean cycle after a set number of loads, a steam oven or a dishwasher asks for descaling or rinse aid, and some dryers remind you to check the exhaust. Do the task the reminder names, reset it the way the manual describes, and write the date in the service record. ### Usually leads to No service Touch CLEAN and wait for the light to flash as the guide describes. ### Shows up as Water or Ice Tasting Stale: Filter Age, Scale and Idle Lines Water or ice tasting stale is dispenser water, cubes or nugget ice with a flat, musty, chemical or freezer-food taste, often cloudy, slow to come or smaller than it used to be. ### Make Sub-Zero A Sub-Zero lasts decades when its condenser is kept clean, its door seals stay supple and its water filter is changed on schedule, and that is what a visit covers. ### Source Sub-Zero UC-15I ice maker use and care guide Confirmed in Sub-Zero's UC-15I ice maker use and care guide; Sub-Zero recommends this cleaning and sanitizing procedure every six months. ## Before you book, in this order. Each step comes from Sub-Zero's own guidance for CLEAN flashing on its home appliances. Follow it to the end: the last card says whether this is a visit. 01 Touch CLEAN and wait for the light to flash as the guide describes. 02 Pour the specified amount of undiluted ice maker sanitizer into the spray area under the water shutters. 03 Let the sanitizing cycle run to completion, roughly 30 minutes, before using the ice maker again. ### Cleared? The reminder is gone from the display, the filter, the screen or the tub has been cleaned or swapped, and the appliance runs a full cycle without calling for it again. A clean-filter light or a descale prompt that returns in days rather than months usually means the part it watches is fouling faster than normal, so mention that when you book. ### What not to do A flashing CLEAN light is not a failure report; it is a scheduled step within the cleaning cycle itself, and it clears on its own once the sanitizing cycle finishes. ## What you may notice with it. The home appliance problems CLEAN flashing tends to arrive with. Answer these at the home appliance before anyone is booked. [All problems](https://appliancemaintenance.center/problems/) Before you call ### [Water or Ice Tasting Stale: Filter Age, Scale and Idle Lines](https://appliancemaintenance.center/problems/water-or-ice-tasting-stale/) [All 6 causes, cheapest first](https://appliancemaintenance.center/problems/water-or-ice-tasting-stale/) It also comes with - [**Appliance Maintenance Code or Reminder Light: Filter, Descale, Vent Check**](https://appliancemaintenance.center/problems/appliance-maintenance-code/) Problem ### Water or Ice Tasting Stale: Filter Age, Scale and Idle Lines 6 causes, cheapest first No service indicated ## Nothing to service. Nothing has broken; the appliance has been counting hours, cycles or gallons and is asking for its routine care. A refrigerator lights a filter icon after about six months of water, a front-load washer suggests a tub-clean cycle after a set number of loads, a steam oven or a dishwasher asks for descaling or rinse aid, and some dryers remind you to check the exhaust. Do the task the reminder names, reset it the way the manual describes, and write the date in the service record. [How to read what your home appliance is telling you](https://appliancemaintenance.center/problems/appliance-maintenance-code/) ## Sub-Zero home appliances. A Sub-Zero lasts decades when its condenser is kept clean, its door seals stay supple and its water filter is changed on schedule, and that is what a visit covers. [Sub-Zero home appliance maintenance](https://appliancemaintenance.center/brands/sub-zero/) More Sub-Zero codes [SERVICE flashing](https://appliancemaintenance.center/error-codes/sub-zero-service-flashing/) [REPLACE FILTER lit red](https://appliancemaintenance.center/error-codes/sub-zero-replace-filter/) [Door alarm chime](https://appliancemaintenance.center/error-codes/sub-zero-door-alarm/) Reminders, not failures on other makes [ASKO Sterile Tub alert](https://appliancemaintenance.center/error-codes/asko-sterile-tub-alert/) [Bertazzoni Turn milk froth adjustment knob to CLEAN to start cleaning](https://appliancemaintenance.center/error-codes/bertazzoni-coffee-milk-clean/) [Café Time to Clean light](https://appliancemaintenance.center/error-codes/cafe-time-to-clean/) [Cove Add rinse aid. Press Enter once added, or press Cancel to ignore.](https://appliancemaintenance.center/error-codes/cove-add-rinse-aid/) [Dacor Rinse Refill](https://appliancemaintenance.center/error-codes/dacor-rinse-refill/) [DCS DOOR flashing](https://appliancemaintenance.center/error-codes/dcs-outdoor-ice-door-flashing/) [Fulgor Milano PRESS CLEAN!](https://appliancemaintenance.center/error-codes/fulgor-milano-coffee-press-clean/) [GE Rinse Aid Indicator Window](https://appliancemaintenance.center/error-codes/ge-low-rinse-aid-indicator/) [All 29 codes of this kind](https://appliancemaintenance.center/error-codes/#family-mode) Sub-Zero builds this ### Cold storage Upkeep for everything in the house that keeps things cold: refrigerators, freezers, wine and beverage units and ice makers, cleaned and checked before they start struggling. ## In Sub-Zero's own words > Touch "CLEAN". Wait three minutes until the CLEAN light flashes, then lift the water shutters and pour 1 tablespoon (15 ml) of undiluted ice maker sanitizer directly into the spray area. [Sub-Zero UC-15I ice maker use and care guide](https://www.subzero-wolf.com/-/media/files/united-states/product-downloads/sub-zero-wolf/use-and-care/sub-zero/uc-15i-ucg.ashx) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Confirmed in Sub-Zero's UC-15I ice maker use and care guide; Sub-Zero recommends this cleaning and sanitizing procedure every six months. ## Sub-Zero CLEAN flashing home appliance maintenance, 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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Touch CLEAN and wait for the light to flash as the guide describes. If it comes back, it needs a visit. ### How often should the ice maker be cleaned? Sub-Zero's own guide calls for cleaning and sanitizing every six months, or sooner if water quality is poor, since mineral buildup can require more frequent attention. ### Can a household cleaner be used instead of Sub-Zero's own sanitizer? The guide specifically calls for the cleaner and sanitizer made for the Sub-Zero ice maker, sold through its own store, rather than a general-purpose product. ### What happens during the rinse cycles after CLEAN flashes? The guide describes eight rinse cycles following the sanitizing cycle, after which the CLEAN light stops being illuminated and the full process, about 30 minutes, is complete. --- **[Read on the site: Sub-Zero CLEAN — time to sanitize](https://appliancemaintenance.center/error-codes/sub-zero-clean-flashing/)** **[Book a visit with ApplianceMaintenance.center](https://appliancemaintenance.center/schedule/)**