--- title: "Sub-Zero refrigerator showing L0 C" description: "What L0 C means on Sub-Zero refrigerators, what to check before booking, and when it is not a failure at all." url: "https://refrigeratorrepair.center/error-codes/sub-zero-l0-c/" --- # Sub-Zero refrigerator showing L0 C The panel stops responding and shows L0 C. ## What L0 C actually means. The panel stops responding and shows L0 C. Someone pressed a key while the unit thought the door was closed. It can show up the first time a new unit is powered on. Sub-Zero's own checks are a stuck light switch and a door or drawer left open for a long time. Sub-Zero refrigerator display · also shown as L0C, LO C, LOC, Lo C What to do when L0 C shows on the refrigerator ### Kind of code Mode, not a failure A setting somebody chose, or an alert it raised on purpose — a showroom mode, a door or power alarm. Nothing has broken and no part is needed. ### Usually leads to No repair Check that the light switch at the door opening is not stuck. ### Shows up as Refrigerator Not Cooling The compartment is warm but the appliance still has power and still makes noise. ### Make Sub-Zero Built-in and column refrigeration with dual sealed systems, serviced from the front and worth repairing far up the cost curve. ### Source Sub-Zero support: Classic Built In Error Code L0 C Classic Series (BI). ## Before you book, in this order. Each step comes from Sub-Zero's own guidance for L0 C on its refrigerators. Follow it to the end: the last card says whether this is a visit. 01 Check that the light switch at the door opening is not stuck. 02 Think back to whether a door or drawer was left open for a long time. 03 Keep the door closed for 45 minutes so the control board can reset. 04 If another code is showing with it, deal with that one on its own; Sub-Zero says the two are not connected. ### Cleared? Nothing needed repairing. If the refrigerator does not settle back to temperature, that is a separate problem. ### What not to do It cannot be brought up by pressing a sequence of keys, so it is not something you entered by mistake in a menu. If it will not clear after 45 minutes with the door closed, it needs a service visit. ## What you may notice with it. The refrigerator problems L0 C tends to arrive with. Answer these at the refrigerator before anyone is booked. [All problems](https://refrigeratorrepair.center/problems/) Before you call ### [Refrigerator Not Cooling](https://refrigeratorrepair.center/problems/refrigerator-not-cooling/) [All 7 causes, cheapest first](https://refrigeratorrepair.center/problems/refrigerator-not-cooling/) It also comes with - [**Refrigerator Showing an Error Code**](https://refrigeratorrepair.center/problems/refrigerator-error-code/) Food safety applies ### Refrigerator Not Cooling 7 causes, cheapest first No repair indicated ## Nothing to repair. A setting somebody chose, or an alert it raised on purpose — a showroom mode, a door or power alarm. Nothing has broken and no part is needed. [How to read what your refrigerator is telling you](https://refrigeratorrepair.center/problems/refrigerator-error-code/) ## Read these before the visit. Short guides that make the call quicker and the diagnosis cheaper. [All guides](https://refrigeratorrepair.center/guides/) What you can check yourself ### Where the model number hides, and why nothing works without it Error codes ### All 247 codes, by make ## Sub-Zero refrigerators. Built-in and column refrigeration with dual sealed systems, serviced from the front and worth repairing far up the cost curve. [Sub-Zero refrigerator repair](https://refrigeratorrepair.center/brands/sub-zero/) More Sub-Zero codes [Service](https://refrigeratorrepair.center/error-codes/sub-zero-service-light/) [Vacuum Condenser](https://refrigeratorrepair.center/error-codes/sub-zero-vacuum-condenser/) [EC40](https://refrigeratorrepair.center/error-codes/sub-zero-ec40/) [EC50](https://refrigeratorrepair.center/error-codes/sub-zero-ec50/) [EC30](https://refrigeratorrepair.center/error-codes/sub-zero-ec30/) [H2 LO](https://refrigeratorrepair.center/error-codes/sub-zero-h2-lo/) [10 R 00](https://refrigeratorrepair.center/error-codes/sub-zero-10-r-00/) [20 2 00](https://refrigeratorrepair.center/error-codes/sub-zero-20-2-00/) [35 R 33](https://refrigeratorrepair.center/error-codes/sub-zero-35-r-33/) Mode, not a failure on other makes [Samsung OF OF](https://refrigeratorrepair.center/error-codes/samsung-of-of/) [LG OF F](https://refrigeratorrepair.center/error-codes/lg-of-f/) [Whirlpool PO](https://refrigeratorrepair.center/error-codes/whirlpool-po/) [KitchenAid PO](https://refrigeratorrepair.center/error-codes/kitchenaid-po/) [GE PF](https://refrigeratorrepair.center/error-codes/ge-pf/) [Frigidaire PF](https://refrigeratorrepair.center/error-codes/frigidaire-pf/) [Viking CL](https://refrigeratorrepair.center/error-codes/viking-cl/) [Thermador Water Filter Symbol flashing](https://refrigeratorrepair.center/error-codes/thermador-water-filter-symbol-flashing/) [All 82 codes of this kind](https://refrigeratorrepair.center/error-codes/#family-mode) Sub-Zero builds this ### Built-in refrigerator Flush with the cabinets, serviced from the front, and almost always repaired rather than replaced. Sub-Zero builds this ### Refrigerator column Separate refrigerator and freezer towers, each with its own sealed system — so a failure stays on one side. Sub-Zero builds this ### Side-by-side refrigerator Full-height freezer beside full-height fresh food, with the ice maker and dispenser built into the freezer door. ## In Sub-Zero's own words > Cause: Command entered at control board while unit senses door is closed [Sub-Zero support: Classic Built In Error Code L0 C](https://www.subzero-wolf.com/assistance/answers/sub-zero/classic/built-in-error-code-l0-c) [Sub-Zero support: Classic Built In Error Code L0 C](https://www.subzero-wolf.com/assistance/answers/sub-zero/classic/built-in-error-code-l0-c) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Classic Series (BI). ## Sub-Zero L0 C refrigerator 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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Check that the light switch at the door opening is not stuck. ### Why did L0 C appear on a brand-new Sub-Zero? It can show up on first power-up because the control saw a key press while it believed the door was closed. Keeping the door shut for 45 minutes lets the board reset. It is not something typed in by mistake through a menu. ### My Sub-Zero shows L0 C next to another code. Are they related? Sub-Zero says no, so handle the other code on its own merits. For L0 C, check the door light switch for sticking and think about whether a door or drawer stood open for a long time. If 45 minutes with the door closed does not clear it, book service. --- **[Read on the site: Sub-Zero refrigerator showing L0 C](https://refrigeratorrepair.center/error-codes/sub-zero-l0-c/)** **[Book a visit with RefrigeratorRepair.center](https://refrigeratorrepair.center/schedule/)**