--- title: "Sub-Zero 30 8 10: open circuit to the ice maker" description: "What 30 8 10 means on Sub-Zero 30 8 10: open circuit to the ice makers, what to check before booking, and when it is not a failure at all." url: "https://icemakerrepair.center/error-codes/sub-zero-30-8-10/" --- # Sub-Zero 30 8 10: open circuit to the ice maker On Classic (BI) built-in models, 30 8 10 means the main control found the ice maker circuit open. ## What 30 8 10 actually means. On Classic (BI) built-in models, 30 8 10 means the main control found the ice maker circuit open. With the circuit broken, the ice maker cannot run its heater or motor, so harvest and refills stop. Sub-Zero ice maker display · also shown as 30-8-10, 30810 What to do when 30 8 10 shows on the ice maker ### Kind of code Control board and communication The boards that run the ice maker stopped hearing each other, or one of them failed: the main control lost contact with the dispenser panel or the ice maker module, or a board reported an electrical problem of its own. Water that dripped onto a connector and a loose harness are checked before a board is ordered by model number. If the ice maker keeps tripping the breaker, leave it off until the visit. ### Usually leads to Ice maker control and sensor repair The control board, the thermistors, the bin sensor and the wiring that decide when an ice maker fills, freezes and stops, tested and repaired when a light flashes, a code shows, a breaker trips or the ice never stops coming. ### Shows up as No Ice Coming From the Ice Maker The mold sits empty or holds one frozen batch that never drops, the bin stays bare for days, and the dispenser gives water as usual: an ice maker not making ice while the rest of the appliance carries on normally. ### Make Sub-Zero Sub-Zero ice maker service, for ice makers in built-in units and those under the counter. ### Source Sub-Zero answer: Classic built-in error code 30 8 10 Sub-Zero Classic (BI) built-in models with an automatic ice maker. ## Before you book, in this order. Each step comes from Sub-Zero's own guidance for 30 8 10 on its ice makers. Follow it to the end: the last card says whether this is a visit. 01 Switch the unit's home breaker off for 30 seconds and back on. 02 Check that the ice maker's wire harness plug in the freezer is fully seated, without pulling on the wires. 03 If the code comes back or the bin stays empty, book a visit. ### Still there? It usually turns into [ice maker control and sensor repair](https://icemakerrepair.center/services/ice-maker-control-and-sensor-repair/). Book with the code and the model number. ### What not to do 30 8 10 is not a water supply warning. The problem is electrical, somewhere between the control and the ice maker. ## What you may notice with it. The ice maker problems 30 8 10 tends to arrive with. Answer these at the ice maker before anyone is booked. [All problems](https://icemakerrepair.center/problems/) Before you call ### [No Ice Coming From the Ice Maker](https://icemakerrepair.center/problems/ice-maker-not-making-ice/) [All 7 causes, cheapest first](https://icemakerrepair.center/problems/ice-maker-not-making-ice/) It also comes with - [**Ice Maker Error Code**](https://icemakerrepair.center/problems/ice-maker-error-code/) Problem ### No Ice Coming From the Ice Maker 7 causes, cheapest first Where 30 8 10 usually leads ## Ice maker control and sensor repair. **Control board, thermistor or bin sensor · moderate to highest.** Book a visit [What the job involves](https://icemakerrepair.center/services/ice-maker-control-and-sensor-repair/) ## Sub-Zero ice makers. Sub-Zero ice maker service, for ice makers in built-in units and those under the counter. [Sub-Zero ice maker repair](https://icemakerrepair.center/brands/sub-zero/) More Sub-Zero codes [EC30](https://icemakerrepair.center/error-codes/sub-zero-ec30/) [30 8 05](https://icemakerrepair.center/error-codes/sub-zero-30-8-05/) [30 8 30](https://icemakerrepair.center/error-codes/sub-zero-30-8-30/) [30 9 01](https://icemakerrepair.center/error-codes/sub-zero-30-9-01/) [30 9 10](https://icemakerrepair.center/error-codes/sub-zero-30-9-10/) [30 9 86](https://icemakerrepair.center/error-codes/sub-zero-30-9-86/) [40 8 40](https://icemakerrepair.center/error-codes/sub-zero-40-8-40/) [40 8 01](https://icemakerrepair.center/error-codes/sub-zero-40-8-01/) [40 9 40](https://icemakerrepair.center/error-codes/sub-zero-40-9-40/) [50 U 86](https://icemakerrepair.center/error-codes/sub-zero-50-u-86/) [50 U 87](https://icemakerrepair.center/error-codes/sub-zero-50-u-87/) [ICE flashing blue](https://icemakerrepair.center/error-codes/sub-zero-ice-flashing-blue/) [All 15 Sub-Zero codes](https://icemakerrepair.center/error-codes/#codes-sub-zero) Control board and communication on other makes [Bosch E02](https://icemakerrepair.center/error-codes/bosch-e02/) [Café Several control lights flashing](https://icemakerrepair.center/error-codes/cafe-several-control-lights-flashing/) [GE Several control lights flashing](https://icemakerrepair.center/error-codes/ge-several-control-lights-flashing/) [JennAir Service light](https://icemakerrepair.center/error-codes/jennair-service-light/) [KitchenAid Service light](https://icemakerrepair.center/error-codes/kitchenaid-service-light/) [LG C1](https://icemakerrepair.center/error-codes/lg-c1/) [Whirlpool Service light](https://icemakerrepair.center/error-codes/whirlpool-service-light/) Sub-Zero builds this ### Door ice maker The ice maker that feeds the dispenser on the outside of a door: tucked into an insulated box in the left door of a French door model, or at the top of the freezer side of a side-by-side, with a chute and an auger carrying cubes to your glass. Sub-Zero builds this ### Freezer ice maker The ice maker that sits inside the freezer compartment itself, a tray that twists or a mold with a heater and an ejector, dropping cubes into a bin or drawer you open by hand, with no dispenser on the door. Sub-Zero builds this ### Undercounter ice maker A built-in residential ice maker that lives under a kitchen, bar or basement counter, making clear cubes or chewable nugget ice on its own cooling system, with a water line in and a gravity drain or a small drain pump out. ## In Sub-Zero's own words > Ice maker open circuit [Sub-Zero answer: Classic built-in error code 30 8 10](https://www.subzero-wolf.com/assistance/answers/sub-zero/classic/built-in-series-error-code-30-8-10) [Sub-Zero answer: Classic built-in error code 30 8 10](https://www.subzero-wolf.com/assistance/answers/sub-zero/classic/built-in-series-error-code-30-8-10) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Sub-Zero Classic (BI) built-in models with an automatic ice maker. ## Sub-Zero 30 8 10 ice maker 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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Switch the unit's home breaker off for 30 seconds and back on. If it comes back, it needs a visit. ### What part does a technician check for 30 8 10 on a Sub-Zero? The ice maker module, its harness and connector, and the control output that powers them. An open circuit is usually a failed ice maker or a loose or damaged connection. ### Will a breaker reset clear 30 8 10 on my Sub-Zero? Sub-Zero lists a 30-second breaker reset as the only owner step. If the circuit is truly open, the code returns once the control checks the ice maker again. ### Is my freezer food safe with 30 8 10 on the display? Yes. The code concerns the ice maker circuit only; the freezer keeps cooling. Only the supply of new ice is affected. --- **[Read on the site: Sub-Zero 30 8 10: open circuit to the ice maker](https://icemakerrepair.center/error-codes/sub-zero-30-8-10/)** **[Book a visit with IceMakerRepair.center](https://icemakerrepair.center/schedule/)**