--- title: "Atosa red D9 light flashing fast: the ice machine stopped on long freeze" description: "What D9 red LED flashing fast means on Atosa red D9 light flashing fast: the ice machine stopped on long freezes, what to check before booking, and when it is…" url: "https://icemachinerepair.center/error-codes/atosa-d9-red-led-flashing-fast/" --- # Atosa red D9 light flashing fast: the ice machine stopped on long freeze The YR-AP-161 board allows 40 minutes for a freeze. ## What D9 red LED flashing fast actually means. The YR-AP-161 board allows 40 minutes for a freeze. When that limit is reached three times, it stops and flashes the red D9 light about three times a second. Atosa lists a hot room or hot water, a dirty condenser, a shorted harvest probe and a problem in the cooling system as causes. Atosa ice machine display · also shown as E1 (YR-AP-161 board) What to do when D9 red LED flashing fast 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 control board, and the HD350 hotel dispenser, whose manual repeats the same LED list. ## Before you book, in this order. Each step comes from Atosa's own guidance for D9 red LED flashing fast on its ice machines. Follow it to the end: the last card says whether this is a visit. 01 Clean the condenser air filter and clear space around the machine. 02 Check that the room and the incoming water are not unusually warm. 03 Switch the machine off and on to restart it, and watch whether it harvests normally. 04 If the fast red flash returns, book a visit to check the harvest probe and the cooling system. ### 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 slow red D9 flash is a different problem, a long harvest. A steady red D9 light is normal and only shows the harvest probe is dry. ## What you may notice with it. The ice machine problems D9 red LED flashing fast 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 Running but Not Making Ice**](https://icemachinerepair.center/problems/ice-machine-not-making-ice/) - [**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 fast 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 slowly](https://icemachinerepair.center/error-codes/atosa-d9-red-led-flashing-slowly/) [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 fast——0.3s on 0.3s off，E1，long freeze 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 control board, and the HD350 hotel dispenser, whose manual repeats the same LED list. ## Atosa D9 red LED flashing fast 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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Clean the condenser air filter and clear space around the machine. If it comes back, it needs a visit. ### Which Atosa machines use the D9 red light? The YR140, YR280, YR450 and YR800 with the AP-161 or AP-261 LED board, and the HD350 hotel dispenser. Display models show codes instead. ### How long does an Atosa freeze cycle take before D9 flashes? The board allows 40 minutes per freeze and stops after reaching that limit three times. ### Can a dirty condenser make the red D9 light flash fast on my Atosa? Yes. Atosa lists a dirty condenser as a cause of long freeze, so cleaning the filter and condenser comes first. --- **[Read on the site: Atosa red D9 light flashing fast: the ice machine stopped on long freeze](https://icemachinerepair.center/error-codes/atosa-d9-red-led-flashing-fast/)** **[Book a visit with IceMachineRepair.center](https://icemachinerepair.center/schedule/)**