--- title: "Samsung range showing C-21 | RangeRepair.center" description: "What C-21 means on Samsung ranges, what to check before booking, and when it is not a failure at all." url: "https://rangerepair.center/error-codes/samsung-c-21/" --- # Samsung range showing C-21 C-21 is Samsung's overheating code: the control has seen the oven cavity climb abnormally high. ## What C-21 actually means. C-21 is Samsung's overheating code: the control has seen the oven cavity climb abnormally high. It shuts the oven down so the heat does not keep rising. Samsung range display What to do when C-21 shows on the range ### Kind of code Oven heating The oven under the burners called for heat and the cavity did not warm the way the control planned. On an electric oven a bake or broil element that has burned open is the usual cause; on a gas oven the igniter and the valve it opens come first. The wiring and the relay are checked before the board takes the blame. ### Usually leads to Bake and broil elements An electric range oven that stays cold, heats only from above or below, or will not broil, traced to the elements, their terminals or the relay that switches them. ### Shows up as Range Oven Temperature Wrong Recipes burn or come out underdone, and an oven thermometer disagrees with the temperature set on the range. ### Make Samsung A Korean electronics group whose freestanding and slide-in ranges run on gas, electric and induction. ### Source Samsung NX60A6711SS gas range user manual DG68-01338A-09, Information codes (Samsung download center; table read from the rendered page) Both Samsung manuals read for this page, gas NX60A6711SS and electric NE63A6711, list C-21. ## Before you book, in this order. Each step comes from Samsung's own guidance for C-21 on its ranges. Follow it to the end: the last card says whether this is a visit. 01 Switch the oven off and let it cool down with the door shut. 02 Press OFF/CLEAR and restart; if the code returns, cut power at the breaker for at least 30 seconds. 03 If C-21 appears again on the next bake, stop using the oven and book a visit. ### Still there? It usually turns into [bake and broil elements](https://rangerepair.center/services/bake-and-broil-element-repair/). Book with the code and the model number. ### What not to do C-21 is not the vent warning. When the heat rises too fast because the vent is covered, Samsung shows C-24 instead. ## What you may notice with it. The range problems C-21 tends to arrive with. Answer these at the range before anyone is booked. [All problems](https://rangerepair.center/problems/) Before you call ### [Range Oven Temperature Wrong](https://rangerepair.center/problems/range-oven-temperature-wrong/) [All 5 causes, cheapest first](https://rangerepair.center/problems/range-oven-temperature-wrong/) It also comes with - [**Range Burning Smell**](https://rangerepair.center/problems/range-burning-smell/) - [**Range Error Code**](https://rangerepair.center/problems/range-error-code/) Problem ### Range Oven Temperature Wrong 5 causes, cheapest first Where C-21 usually leads ## Bake and broil elements. **Bake or broil element · low.** Book a visit [What the job involves](https://rangerepair.center/services/bake-and-broil-element-repair/) ## Samsung ranges. A Korean electronics group whose freestanding and slide-in ranges run on gas, electric and induction. [Samsung range repair](https://rangerepair.center/brands/samsung/) More Samsung codes [C-20](https://rangerepair.center/error-codes/samsung-c-20/) [C-24](https://rangerepair.center/error-codes/samsung-c-24/) [C-25](https://rangerepair.center/error-codes/samsung-c-25/) [C-30](https://rangerepair.center/error-codes/samsung-c-30/) [C-d0](https://rangerepair.center/error-codes/samsung-c-d0/) [C-d1](https://rangerepair.center/error-codes/samsung-c-d1/) [C-F0](https://rangerepair.center/error-codes/samsung-c-f0/) [bAd LinE](https://rangerepair.center/error-codes/samsung-bad-line/) [tESt](https://rangerepair.center/error-codes/samsung-test/) [-dC-](https://rangerepair.center/error-codes/samsung-dc/) [door](https://rangerepair.center/error-codes/samsung-door/) [Cooktop in use](https://rangerepair.center/error-codes/samsung-top-in-use/) [All 15 Samsung codes](https://rangerepair.center/error-codes/#codes-samsung) Oven heating on other makes [AGA 010-014](https://rangerepair.center/error-codes/aga-010-014/) [BlueStar F80](https://rangerepair.center/error-codes/bluestar-range-f80/) [Dacor C-21](https://rangerepair.center/error-codes/dacor-range-c-21/) [Electrolux F10](https://rangerepair.center/error-codes/electrolux-f10/) [Fisher & Paykel A1](https://rangerepair.center/error-codes/fisher-and-paykel-range-a1/) [Frigidaire F10](https://rangerepair.center/error-codes/frigidaire-f10/) [GE F2](https://rangerepair.center/error-codes/ge-f2/) [LG F9](https://rangerepair.center/error-codes/lg-f9/) [All 16 codes of this kind](https://rangerepair.center/error-codes/#family-oven-heat) Samsung builds this ### Gas range Open flames on top and a gas-fired oven below, all fed by one supply line behind the range and lit by igniters rather than a match. Samsung builds this ### Electric range Coil elements or radiant elements under a smooth glass top, with an electric oven below, all running on a dedicated 240-volt circuit. Samsung builds this ### Dual-fuel range Gas burners on top and an electric oven below, the combination most professional-style ranges use, needing both a gas line and a 240-volt circuit. ## In Samsung's own words > The oven is overheating. [Samsung NX60A6711SS gas range user manual DG68-01338A-09, Information codes (Samsung download center; table read from the rendered page)](https://downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=UNI_CA&OriginYN=N&ModelType=N&ModelName=NX60A6711SS%2FAA&CttFileID=11492203&CDCttType=UM&VPath=UM%2F202606%2F20260610192626878%2FO_01._DG68-01338A-09_IB_FULL_NX60A6711SS_AA_EN.pdf) [Samsung NE63A6711 electric range user manual, Information codes (Samsung download center)](https://downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=UNI_CA&OriginYN=N&ModelType=N&ModelName=NE63A6711SS%2FAC&CttFileID=10077591&CDCttType=UM&VPath=UM%2F202502%2F20250219150835685%2FO_01._IB_FULL_NE5000A_NE63A6711_EN.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Both Samsung manuals read for this page, gas NX60A6711SS and electric NE63A6711, list C-21. ## Samsung C-21 range 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. [All service areas](https://rangerepair.center/locations/) [Tampa Bay](https://rangerepair.center/locations/tampa-bay/) FL · 31 areas - [Hyde Park](https://rangerepair.center/locations/tampa-bay/hyde-park/) - [Davis Islands](https://rangerepair.center/locations/tampa-bay/davis-islands/) - [Palma Ceia](https://rangerepair.center/locations/tampa-bay/palma-ceia/) - [Westchase](https://rangerepair.center/locations/tampa-bay/westchase/) - [Carrollwood](https://rangerepair.center/locations/tampa-bay/carrollwood/) - [Belleair](https://rangerepair.center/locations/tampa-bay/belleair/) - [St. Pete Beach](https://rangerepair.center/locations/tampa-bay/st-pete-beach/) - [Palm Harbor](https://rangerepair.center/locations/tampa-bay/palm-harbor/) [Orlando](https://rangerepair.center/locations/orlando/) FL · 30 areas - [Winter Park](https://rangerepair.center/locations/orlando/winter-park/) - [Windermere](https://rangerepair.center/locations/orlando/windermere/) - [Dr. Phillips](https://rangerepair.center/locations/orlando/dr-phillips/) - [Bay Hill](https://rangerepair.center/locations/orlando/bay-hill/) - [Lake Nona](https://rangerepair.center/locations/orlando/lake-nona/) - [Heathrow](https://rangerepair.center/locations/orlando/heathrow/) - [Celebration](https://rangerepair.center/locations/orlando/celebration/) [Miami / South Florida](https://rangerepair.center/locations/south-florida/) FL · 47 areas - [Brickell](https://rangerepair.center/locations/south-florida/brickell/) - [Coconut Grove](https://rangerepair.center/locations/south-florida/coconut-grove/) - [Coral Gables](https://rangerepair.center/locations/south-florida/coral-gables/) - [Pinecrest](https://rangerepair.center/locations/south-florida/pinecrest/) - [Key Biscayne](https://rangerepair.center/locations/south-florida/key-biscayne/) - [Aventura](https://rangerepair.center/locations/south-florida/aventura/) - [Sunny Isles Beach](https://rangerepair.center/locations/south-florida/sunny-isles-beach/) - [Bal Harbour](https://rangerepair.center/locations/south-florida/bal-harbour/) - [Miami Beach](https://rangerepair.center/locations/south-florida/miami-beach/) - [Golden Beach](https://rangerepair.center/locations/south-florida/golden-beach/) - [Weston](https://rangerepair.center/locations/south-florida/weston/) - [Boca Raton](https://rangerepair.center/locations/south-florida/boca-raton/) - [Palm Beach](https://rangerepair.center/locations/south-florida/palm-beach/) [New York Metro](https://rangerepair.center/locations/new-york/) NY · 75 areas - [Upper East Side](https://rangerepair.center/locations/new-york/upper-east-side/) - [Upper West Side](https://rangerepair.center/locations/new-york/upper-west-side/) - [Tribeca](https://rangerepair.center/locations/new-york/tribeca/) - [SoHo](https://rangerepair.center/locations/new-york/soho/) - [Greenwich Village](https://rangerepair.center/locations/new-york/greenwich-village/) - [Battery Park City](https://rangerepair.center/locations/new-york/battery-park-city/) - [Brooklyn Heights](https://rangerepair.center/locations/new-york/brooklyn-heights/) - [Park Slope](https://rangerepair.center/locations/new-york/park-slope/) - [DUMBO](https://rangerepair.center/locations/new-york/dumbo/) - [Forest Hills](https://rangerepair.center/locations/new-york/forest-hills/) - [Great Neck](https://rangerepair.center/locations/new-york/great-neck/) - [Southampton](https://rangerepair.center/locations/new-york/southampton/) - [Scarsdale](https://rangerepair.center/locations/new-york/scarsdale/) [Houston](https://rangerepair.center/locations/houston/) TX · 36 areas - [River Oaks](https://rangerepair.center/locations/houston/river-oaks/) - [Memorial](https://rangerepair.center/locations/houston/memorial/) - [Tanglewood](https://rangerepair.center/locations/houston/tanglewood/) - [Greater Heights](https://rangerepair.center/locations/houston/greater-heights/) - [Kingwood](https://rangerepair.center/locations/houston/kingwood/) - [Bellaire](https://rangerepair.center/locations/houston/bellaire/) - [Bunker Hill Village](https://rangerepair.center/locations/houston/bunker-hill-village/) - [Piney Point Village](https://rangerepair.center/locations/houston/piney-point-village/) - [Hunters Creek Village](https://rangerepair.center/locations/houston/hunters-creek-village/) - [Sugar Land](https://rangerepair.center/locations/houston/sugar-land/) - [Cinco Ranch](https://rangerepair.center/locations/houston/cinco-ranch/) - [The Woodlands](https://rangerepair.center/locations/houston/the-woodlands/) - [West University](https://rangerepair.center/locations/houston/west-university/) [Chicago](https://rangerepair.center/locations/chicagoland/) IL · 50 areas - [Lincoln Park](https://rangerepair.center/locations/chicagoland/lincoln-park/) - [Near North Side](https://rangerepair.center/locations/chicagoland/near-north-side/) - [West Loop / Near West Side](https://rangerepair.center/locations/chicagoland/west-loop-near-west-side/) - [Wilmette](https://rangerepair.center/locations/chicagoland/wilmette/) - [Winnetka](https://rangerepair.center/locations/chicagoland/winnetka/) - [Glencoe](https://rangerepair.center/locations/chicagoland/glencoe/) - [River Forest](https://rangerepair.center/locations/chicagoland/river-forest/) - [Oak Park](https://rangerepair.center/locations/chicagoland/oak-park/) - [Hinsdale](https://rangerepair.center/locations/chicagoland/hinsdale/) - [Lake Forest](https://rangerepair.center/locations/chicagoland/lake-forest/) - [Highland Park](https://rangerepair.center/locations/chicagoland/highland-park/) - [Gold Coast](https://rangerepair.center/locations/chicagoland/gold-coast/) - [Lakeview](https://rangerepair.center/locations/chicagoland/lakeview/) [Los Angeles](https://rangerepair.center/locations/los-angeles/) CA · 95 areas - [Beverly Hills](https://rangerepair.center/locations/los-angeles/beverly-hills/) - [Bel Air](https://rangerepair.center/locations/los-angeles/bel-air/) - [Holmby Hills](https://rangerepair.center/locations/los-angeles/holmby-hills/) - [Brentwood](https://rangerepair.center/locations/los-angeles/brentwood/) - [Pacific Palisades](https://rangerepair.center/locations/los-angeles/pacific-palisades/) - [Santa Monica](https://rangerepair.center/locations/los-angeles/santa-monica/) - [Hancock Park](https://rangerepair.center/locations/los-angeles/hancock-park/) - [Studio City](https://rangerepair.center/locations/los-angeles/studio-city/) - [Calabasas](https://rangerepair.center/locations/los-angeles/calabasas/) - [Manhattan Beach](https://rangerepair.center/locations/los-angeles/manhattan-beach/) - [Palos Verdes Estates](https://rangerepair.center/locations/los-angeles/palos-verdes-estates/) - [Pasadena](https://rangerepair.center/locations/los-angeles/pasadena/) - [San Marino](https://rangerepair.center/locations/los-angeles/san-marino/) - [Malibu](https://rangerepair.center/locations/los-angeles/malibu/) [San Diego](https://rangerepair.center/locations/san-diego/) CA · 31 areas - [La Jolla](https://rangerepair.center/locations/san-diego/la-jolla/) - [Carmel Valley](https://rangerepair.center/locations/san-diego/carmel-valley/) - [Point Loma](https://rangerepair.center/locations/san-diego/point-loma/) - [Del Mar](https://rangerepair.center/locations/san-diego/del-mar/) - [Rancho Santa Fe](https://rangerepair.center/locations/san-diego/rancho-santa-fe/) - [Coronado](https://rangerepair.center/locations/san-diego/coronado/) - [Encinitas](https://rangerepair.center/locations/san-diego/encinitas/) - [Solana Beach](https://rangerepair.center/locations/san-diego/solana-beach/) [San Francisco Bay Area](https://rangerepair.center/locations/bay-area/) CA · 74 areas - [Pacific Heights](https://rangerepair.center/locations/bay-area/pacific-heights/) - [Presidio Heights](https://rangerepair.center/locations/bay-area/presidio-heights/) - [Russian Hill](https://rangerepair.center/locations/bay-area/russian-hill/) - [Noe Valley](https://rangerepair.center/locations/bay-area/noe-valley/) - [Sea Cliff](https://rangerepair.center/locations/bay-area/sea-cliff/) - [Hillsborough](https://rangerepair.center/locations/bay-area/hillsborough/) - [Atherton](https://rangerepair.center/locations/bay-area/atherton/) - [Woodside](https://rangerepair.center/locations/bay-area/woodside/) - [Palo Alto](https://rangerepair.center/locations/bay-area/palo-alto/) - [Los Altos Hills](https://rangerepair.center/locations/bay-area/los-altos-hills/) - [Tiburon](https://rangerepair.center/locations/bay-area/tiburon/) - [Piedmont](https://rangerepair.center/locations/bay-area/piedmont/) - [Marina](https://rangerepair.center/locations/bay-area/marina/) For the heart of your home. ## Questions about C-21. ### Can I clear C-21 myself? Switch the oven off and let it cool down with the door shut. If it comes back, it needs a visit. ### Is it safe to open the door when my Samsung range shows C-21? Let the oven cool before you open it wide, since C-21 means the cavity ran hotter than normal. Once it is cool, reset the power as the manual describes and watch whether the code returns. ### What usually causes C-21 on a Samsung range? The manual only states that the oven is overheating and does not name a part. Finding the cause takes testing on site, so book a visit if C-21 repeats. --- **[Read on the site: Samsung range showing C-21 | RangeRepair.center](https://rangerepair.center/error-codes/samsung-c-21/)** **[Book a visit with RangeRepair.center](https://rangerepair.center/schedule/)**