--- title: "Atosa red D9 light flashing slowly: the ice machine stopped on long harvest" description: "What D9 red LED flashing slowly means on Atosa red D9 light flashing slowly: the ice machine stopped on long harvests, what to check before booking, and when it…" url: "https://icemachinerepair.center/error-codes/atosa-d9-red-led-flashing-slowly/" --- # Atosa red D9 light flashing slowly: the ice machine stopped on long harvest On the YR-AP-161 heads and undercounters, harvest is allowed 4.5 minutes; three overruns stop the machine with the red D9 light flashing about once every 1.4 seconds. ## What D9 red LED flashing slowly actually means. On the YR-AP-161 heads and undercounters, harvest is allowed 4.5 minutes; three overruns stop the machine with the red D9 light flashing about once every 1.4 seconds. Ice that is too thick, a dirty evaporator, a cold room or a problem with the temperature probe are the causes Atosa gives. Atosa ice machine display · also shown as E2 (YR-AP-161 board) What to do when D9 red LED flashing slowly shows on the ice machine ### Kind of code Harvest and freeze cycle A freeze ran longer than the board allows, or a harvest started and the ice never fell. Scale on the evaporator holds the sheet to the plate, a thickness probe crusted with minerals never signals, a hot gas valve that does not open leaves the plate cold, a harvest assist that does not push, or a water curtain that swings without tripping its switch all end in this family. A cleaning cycle run by the manual often clears it; a valve or a probe is a technician's job. ### Usually leads to Ice machine harvest repair The hot gas valve, harvest assist, curtain switch and thickness probe that decide when a sheet of cubes is done and make it drop. ### Shows up as Ice Machine Error Code or Flashing Light: What It Is Telling You An ice machine error code may show as a number on a small display, a pattern of blinking lights on the control board, a colored light on the front, or a machine that stops with one indicator flashing. ### Make Atosa An Atosa ice machine visit opens with the water supply and the air around the condenser, and only then turns to the harvest. ### Source Atosa YR140/YR280/YR450/YR800-AP-161 ice machine manual YR140, YR280, YR450 and YR800 AP-161/261 LED board (4.5 minutes, three times). The HD350 hotel dispenser manual uses the same light but a different limit. ## Before you book, in this order. Each step comes from Atosa's own guidance for D9 red LED flashing slowly on its ice machines. Follow it to the end: the last card says whether this is a visit. 01 Look for a slab of ice still stuck to the evaporator. 02 Schedule a cleaning if scale is visible on the evaporator or curtain. 03 Make sure the room is not unusually cold. 04 If the slow flash returns after cleaning, book a visit to adjust the ice thickness and test the probe. ### Still there? It usually turns into [ice machine harvest repair](https://icemachinerepair.center/services/ice-machine-harvest-repair/). Book with the code and the model number. ### What not to do A fast D9 flash means a long freeze instead. The slow flash is not a water shortage, which lights the blue D8. ## What you may notice with it. The ice machine problems D9 red LED flashing slowly tends to arrive with. Answer these at the ice machine before anyone is booked. [All problems](https://icemachinerepair.center/problems/) Before you call ### [Ice Machine Error Code or Flashing Light: What It Is Telling You](https://icemachinerepair.center/problems/ice-machine-error-code/) [All 7 causes, cheapest first](https://icemachinerepair.center/problems/ice-machine-error-code/) It also comes with - [**Ice Machine Not Harvesting: Ice Stays Stuck on the Plate**](https://icemachinerepair.center/problems/ice-machine-not-harvesting/) - [**Ice Machine Making Too Little Ice for the Rush**](https://icemachinerepair.center/problems/ice-machine-making-little-ice/) Problem ### Ice Machine Error Code or Flashing Light: What It Is Telling You 7 causes, cheapest first Where D9 red LED flashing slowly usually leads ## Ice machine harvest repair. **Thickness probe, curtain switch, harvest assist and hot gas valve · low to moderate.** Book a visit [What the job involves](https://icemachinerepair.center/services/ice-machine-harvest-repair/) ## Atosa ice machines. An Atosa ice machine visit opens with the water supply and the air around the condenser, and only then turns to the harvest. [Atosa ice machine repair](https://icemachinerepair.center/brands/atosa/) More Atosa codes [FUL](https://icemachinerepair.center/error-codes/atosa-ful/) [E1](https://icemachinerepair.center/error-codes/atosa-e1/) [E2](https://icemachinerepair.center/error-codes/atosa-e2/) [E3](https://icemachinerepair.center/error-codes/atosa-e3/) [E4](https://icemachinerepair.center/error-codes/atosa-e4/) [E5](https://icemachinerepair.center/error-codes/atosa-e5/) [E6](https://icemachinerepair.center/error-codes/atosa-e6/) [E7](https://icemachinerepair.center/error-codes/atosa-e7/) [E8](https://icemachinerepair.center/error-codes/atosa-e8/) [D9 red LED flashing fast](https://icemachinerepair.center/error-codes/atosa-d9-red-led-flashing-fast/) [D8 blue LED flashing slowly](https://icemachinerepair.center/error-codes/atosa-d8-blue-led-flashing-slowly/) Harvest and freeze cycle on other makes [Blue Air E1](https://icemachinerepair.center/error-codes/blue-air-e1/) [Follett HI AMPS](https://icemachinerepair.center/error-codes/follett-hi-amps/) [Hoshizaki 1 beep](https://icemachinerepair.center/error-codes/hoshizaki-1-beep/) [Ice-O-Matic Error 1](https://icemachinerepair.center/error-codes/ice-o-matic-error-1/) [Koolaire SL#1](https://icemachinerepair.center/error-codes/koolaire-sl1/) [Manitowoc E01](https://icemachinerepair.center/error-codes/manitowoc-e01/) [Scotsman 1](https://icemachinerepair.center/error-codes/scotsman-1/) [Sub-Zero ICE flashing](https://icemachinerepair.center/error-codes/sub-zero-ice-flashing/) [All 24 codes of this kind](https://icemachinerepair.center/error-codes/#family-harvest) Atosa builds this ### Modular ice machine An ice-making head set on top of a separate storage bin or drink dispenser, cooled by air, water or a condenser on the roof, turning out hundreds of pounds of cubes a day. Atosa builds this ### Undercounter ice machine A self-contained ice machine that makes and stores its own ice under a bar, a service counter or a kitchen island, from commercial units to clear-ice models in large homes. Atosa builds this ### Ice and water dispenser A countertop or floor-standing unit in a hotel hallway, an office or a clinic that makes and stores ice and hands it out with water at the touch of a lever, a button or a sensor. ## In Atosa's own words > D9 flash slow——0.7s on 0.7s off, E2，long harvest protection [Atosa YR140/YR280/YR450/YR800-AP-161 ice machine manual](https://atosausa.com/wp-content/uploads/2023/10/IceMakerManual_YR140-AP-161_YR280-AP-161_YR450-AP-161_YR800-AP-161.pdf) [Atosa YR140/YR280/YR450/YR800-AP-161 ice machine manual](https://atosausa.com/wp-content/uploads/2023/10/IceMakerManual_YR140-AP-161_YR280-AP-161_YR450-AP-161_YR800-AP-161.pdf) [Atosa HD350 hotel ice dispenser manual](https://atosausa.com/wp-content/uploads/2024/02/HOTEL-ICE-MAKER-MANUAL-6.12.24.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. YR140, YR280, YR450 and YR800 AP-161/261 LED board (4.5 minutes, three times). The HD350 hotel dispenser manual uses the same light but a different limit. ## Atosa D9 red LED flashing slowly ice machine 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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Look for a slab of ice still stuck to the evaporator. If it comes back, it needs a visit. ### What does a slowly blinking red light on my Atosa YR280 mean? That is the long harvest protection: the ice took more than 4.5 minutes to drop three times. Thick ice and scale are the usual causes. ### Does the Atosa hotel ice dispenser use the same light? Yes, the HD350 manual lists the same slow red D9 flash for long harvest, but its limit is 4 minutes over 100 cycles. ### Can I adjust ice thickness on my Atosa myself? Atosa adjusts thickness at the water probe, which sits inside the machine. Book a visit so it is set without disturbing the probe wiring. --- **[Read on the site: Atosa red D9 light flashing slowly: the ice machine stopped on long harvest](https://icemachinerepair.center/error-codes/atosa-d9-red-led-flashing-slowly/)** **[Book a visit with IceMachineRepair.center](https://icemachinerepair.center/schedule/)**