--- title: "Sub-Zero refrigerator showing Service" description: "What Service 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-service-light/" --- # Sub-Zero refrigerator showing Service It means two different things depending on how it shows. ## What Service actually means. It means two different things depending on how it shows. Flashing between the zone temperatures, it says the compressor has been running far more than it should — a possible cooling problem. Lit steadily, it says an error code has been stored in memory. Sub-Zero refrigerator display · also shown as Service flashing, Service steady What to do when Service shows on the refrigerator ### Kind of code Service indication A light or a message asking for a visit. It says that something wants attention, not what, so the visit starts with a diagnosis. ### Usually leads to Diagnostic visit The visit that decides what the repair actually is, before any part is ordered. ### Shows up as Refrigerator Running Constantly The compressor never cycles off, and the cabinet may still be holding temperature. ### 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 assistance: Service flashing Sub-Zero shows this on 600 and 700 Series panels. The Classic series uses a wrench icon instead. ## Before you book, in this order. Each step comes from Sub-Zero's own guidance for Service on its refrigerators. Follow it to the end: the last card says whether this is a visit. 01 Flashing and the temperatures are high: book a visit. 02 Flashing and the temperatures are near normal: switch the unit off, clean the condenser, check that the doors close, switch the breaker off for 30 seconds and back on. Book a visit if it returns. 03 Steady: there is nothing to do at home — book a visit. ### Still there? It usually turns into [diagnostic visit](https://refrigeratorrepair.center/services/diagnostic-visit/). Book with the code and the model number. ### What not to do Do not treat flashing and steady as the same message. One is about how hard the unit is working; the other is a stored error. ## What you may notice with it. The refrigerator problems Service tends to arrive with. Answer these at the refrigerator before anyone is booked. [All problems](https://refrigeratorrepair.center/problems/) Before you call ### [Refrigerator Running Constantly](https://refrigeratorrepair.center/problems/refrigerator-running-constantly/) [All 5 causes, cheapest first](https://refrigeratorrepair.center/problems/refrigerator-running-constantly/) It also comes with - [**Refrigerator Not Cooling**](https://refrigeratorrepair.center/problems/refrigerator-not-cooling/) Problem ### Refrigerator Running Constantly 5 causes, cheapest first Where Service usually leads ## Diagnostic visit. Book a visit [What the job involves](https://refrigeratorrepair.center/services/diagnostic-visit/) ## Read these before the visit. Short guides that make the call quicker and the diagnosis cheaper. [All guides](https://refrigeratorrepair.center/guides/) How not to need us ### The condenser, the grille, and the one job that prevents the most calls Why it is doing that ### A refrigerator that never stops running 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 [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/) [L0 C](https://refrigeratorrepair.center/error-codes/sub-zero-l0-c/) [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/) Service indication on other makes [Viking High Temperature Alarm](https://refrigeratorrepair.center/error-codes/viking-high-temperature-alarm/) [Bosch E03](https://refrigeratorrepair.center/error-codes/bosch-e03/) [Gaggenau ALARM symbol](https://refrigeratorrepair.center/error-codes/gaggenau-alarm-symbol/) [Miele F0](https://refrigeratorrepair.center/error-codes/miele-f0/) [Liebherr F1 to F5](https://refrigeratorrepair.center/error-codes/liebherr-f1-to-f5/) [U-Line Temp Hi 6H+](https://refrigeratorrepair.center/error-codes/u-line-temp-hi-6h/) [True Residential REF](https://refrigeratorrepair.center/error-codes/true-ref/) [GE FF](https://refrigeratorrepair.center/error-codes/ge-ff/) [All 53 codes of this kind](https://refrigeratorrepair.center/error-codes/#family-service-indication) 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 > The word "Service" flashes between zone temperatures. 600 and 700 Series control panel shown. [Sub-Zero assistance: Service flashing](https://www.subzero-wolf.com/assistance/answers/sub-zero/common/sub-zero-with-service-flashing) [Sub-Zero assistance: Service indicator steady](https://www.subzero-wolf.com/assistance/answers/sub-zero/common/600or-700-series-service-indicator-steady) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Sub-Zero shows this on 600 and 700 Series panels. The Classic series uses a wrench icon instead. ## Sub-Zero Service 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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Flashing and the temperatures are high: book a visit. If it comes back, it needs a visit. ### Is a flashing Sub-Zero Service light as serious as a steady one? They are two separate messages, so judge each on its own terms. A flash is about the compressor running far longer than it should, and it matters most when the zone temperatures are also up. A steady light only says a code is sitting in memory, and reading it takes a technician. ### Why did the Sub-Zero Service light come back after I cleaned the condenser and reset the breaker? If the flashing returns after those owner steps, the extra run time has a cause that cleaning did not reach. At that point the home checks are used up and the unit needs a visit. On a Classic series unit the same warning shows as a wrench icon rather than the word. --- **[Read on the site: Sub-Zero refrigerator showing Service](https://refrigeratorrepair.center/error-codes/sub-zero-service-light/)** **[Book a visit with RefrigeratorRepair.center](https://refrigeratorrepair.center/schedule/)**