{
  "name": "FaultCodeLab appliance error-code dataset",
  "description": "Source-cited code summaries with model/market scope, editorial status and explicit source locators. Safety guidance remains on each canonical page.",
  "version": "2.0",
  "dateModified": "2026-08-21",
  "license": "CC-BY-4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "FaultCodeLab (https://faultcodelab.com)",
  "homepage": "https://faultcodelab.com/en/dataset/",
  "slice": {
    "brand": null,
    "appliance": "refrigerator"
  },
  "limitations": [
    "Source confidence is separate from editorial review.",
    "AI-assisted review is not technician or native-language approval.",
    "Documentation coverage is not failure-frequency data.",
    "Manufacturer documents retain their own rights; they are linked, not relicensed."
  ],
  "fields": [
    "id",
    "brand",
    "appliance",
    "code",
    "aliases",
    "shortMeaning",
    "severity",
    "confidence",
    "applicability",
    "editorial",
    "sourceUrls",
    "sourceEvidence",
    "lastVerifiedAt",
    "updatedAt",
    "url"
  ],
  "recordCount": 21,
  "records": [
    {
      "id": "lg-refrigerator-rf",
      "brand": "LG",
      "appliance": "refrigerator",
      "code": "rF",
      "aliases": [
        "ER rF",
        "E rF"
      ],
      "shortMeaning": "Most LG sources describe rF as an abnormality with the refrigerator compartment fan motor.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "regional",
        "modelFamily": "LG refrigerators covered by the US support page",
        "market": "United States",
        "sourceUrl": "https://www.lg.com/us/support/help-library/lg-refrigerator-troubleshooting-an-e-ff-or-e-rf-error-code--20153150964030",
        "verifiedAt": "2026-06-24",
        "caveat": "This scope follows LG's US refrigerator support page; ER/E rF display variants and service guidance can differ by exact model and market."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.lg.com/us/support/help-library/lg-refrigerator-troubleshooting-an-e-ff-or-e-rf-error-code--20153150964030"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-06-24",
      "updatedAt": "2026-08-21",
      "url": "https://faultcodelab.com/en/lg/refrigerator/rf/"
    },
    {
      "id": "lg-refrigerator-ff",
      "brand": "LG",
      "appliance": "refrigerator",
      "code": "FF",
      "aliases": [
        "ER FF",
        "E FF"
      ],
      "shortMeaning": "LG documents FF as an abnormality with the freezer compartment fan motor.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "regional",
        "modelFamily": "LG refrigerators covered by the US support page",
        "market": "United States",
        "sourceUrl": "https://www.lg.com/us/support/help-library/lg-refrigerator-troubleshooting-an-e-ff-or-e-rf-error-code--20153150964030",
        "verifiedAt": "2026-06-24",
        "caveat": "This scope follows LG's US refrigerator support page; ER/E FF display variants and service guidance can differ by exact model and market."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.lg.com/us/support/help-library/lg-refrigerator-troubleshooting-an-e-ff-or-e-rf-error-code--20153150964030"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-06-24",
      "updatedAt": "2026-08-21",
      "url": "https://faultcodelab.com/en/lg/refrigerator/ff/"
    },
    {
      "id": "lg-refrigerator-gf",
      "brand": "LG",
      "appliance": "refrigerator",
      "code": "gF",
      "aliases": [
        "GF"
      ],
      "shortMeaning": "Commonly logged for a flow sensor error or low water pressure affecting the ice maker water fill.",
      "severity": "medium",
      "confidence": "official",
      "applicability": {
        "scope": "regional",
        "modelFamily": "LG refrigerators covered by the US support page",
        "market": "United States",
        "sourceUrl": "https://www.lg.com/us/support/help-library/lg-refrigerator-why-is-the-ice-tray-overfilling-with-water--1339009084981",
        "verifiedAt": "2026-06-24",
        "caveat": "This scope follows LG's US refrigerator support page; gF display behavior and permitted checks can differ by exact model, ice-maker configuration, and market."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.lg.com/us/support/help-library/lg-refrigerator-why-is-the-ice-tray-overfilling-with-water--1339009084981"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-06-24",
      "updatedAt": "2026-08-21",
      "url": "https://faultcodelab.com/en/lg/refrigerator/gf/"
    },
    {
      "id": "lg-refrigerator-dh",
      "brand": "LG",
      "appliance": "refrigerator",
      "code": "dH",
      "aliases": [
        "F dH",
        "r dH",
        "Er dH"
      ],
      "shortMeaning": "This code commonly appears when the refrigerator spent too long trying to complete defrost.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "regional",
        "modelFamily": "LG refrigerators covered by the US support page",
        "market": "United States",
        "sourceUrl": "https://www.lg.com/us/support/help-library/lg-refrigerator-troubleshooting-an-f-dh-or-r-dh-error-code--20153150967208",
        "verifiedAt": "2026-08-21",
        "caveat": "This scope follows LG's US refrigerator support page; dH display variants and service guidance can differ by exact model and market."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.lg.com/us/support/help-library/lg-refrigerator-troubleshooting-an-f-dh-or-r-dh-error-code--20153150967208"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-08-21",
      "updatedAt": "2026-08-21",
      "url": "https://faultcodelab.com/en/lg/refrigerator/dh/"
    },
    {
      "id": "lg-refrigerator-ds",
      "brand": "LG",
      "appliance": "refrigerator",
      "code": "dS",
      "aliases": [
        "F dS",
        "r dS"
      ],
      "shortMeaning": "Manufacturer guidance usually ties dS to a short or disconnection in a refrigerator defrost sensor.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "regional",
        "modelFamily": "LG refrigerators covered by the US support page",
        "market": "United States",
        "sourceUrl": "https://www.lg.com/us/support/help-library/ds-error-code-CT10000021-1337868503423",
        "verifiedAt": "2026-06-24",
        "caveat": "This scope follows LG's US refrigerator support page; dS display variants and service guidance can differ by exact model and market."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.lg.com/us/support/help-library/ds-error-code-CT10000021-1337868503423"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-06-24",
      "updatedAt": "2026-08-21",
      "url": "https://faultcodelab.com/en/lg/refrigerator/ds/"
    },
    {
      "id": "samsung-refrigerator-5e",
      "brand": "Samsung",
      "appliance": "refrigerator",
      "code": "5E",
      "aliases": [],
      "shortMeaning": "Samsung documents 5E as a fridge defrost-sensor alert that may accompany a cooling or defrost problem.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "broad-appliance",
        "modelFamily": "Samsung refrigerators that display 5E",
        "market": "United States",
        "sourceUrl": "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "verifiedAt": "2026-07-30",
        "caveat": "Samsung's US guide lists 5E but is not a complete model crosswalk; confirm the exact refrigerator manual because display systems and supported codes vary."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.samsung.com/us/support/troubleshoot/TSG10007315/"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/samsung/refrigerator/5e/"
    },
    {
      "id": "samsung-refrigerator-40e",
      "brand": "Samsung",
      "appliance": "refrigerator",
      "code": "40E",
      "aliases": [
        "40C"
      ],
      "shortMeaning": "Most Samsung sources describe 40E and 40C as ice-room fan alerts on supported refrigerators.",
      "severity": "medium",
      "confidence": "official",
      "applicability": {
        "scope": "model-family",
        "modelFamily": "Samsung refrigerators with an ice room and a 40E or 40C display",
        "market": "United States",
        "sourceUrl": "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "verifiedAt": "2026-07-30",
        "caveat": "The official guide groups 40E and 40C but does not identify every compatible ice-room design; confirm that the exact model uses this display family."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.samsung.com/us/support/troubleshoot/TSG10007315/"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/samsung/refrigerator/40e/"
    },
    {
      "id": "ge-refrigerator-ff",
      "brand": "GE",
      "appliance": "refrigerator",
      "code": "FF",
      "aliases": [],
      "shortMeaning": "GE documents FF as a warning that frozen food should be checked because freezer temperature is rising too high.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "regional",
        "modelFamily": "GE refrigerators covered by the US support page",
        "market": "United States",
        "sourceUrl": "https://products.geappliances.com/appliance/gea-support-search-content?contentId=16912",
        "verifiedAt": "2026-06-24",
        "caveat": "This scope follows GE's US refrigerator support page; FF display behavior and service guidance can differ by exact model and market."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://products.geappliances.com/appliance/gea-support-search-content?contentId=16912"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-06-24",
      "updatedAt": "2026-06-24",
      "url": "https://faultcodelab.com/en/ge/refrigerator/ff/"
    },
    {
      "id": "ge-refrigerator-pf",
      "brand": "GE",
      "appliance": "refrigerator",
      "code": "PF",
      "aliases": [],
      "shortMeaning": "Commonly logged when power to the refrigerator has been interrupted.",
      "severity": "medium",
      "confidence": "official",
      "applicability": {
        "scope": "regional",
        "modelFamily": "GE refrigerators covered by the US support page",
        "market": "United States",
        "sourceUrl": "https://products.geappliances.com/appliance/gea-support-search-content?contentId=16912",
        "verifiedAt": "2026-08-21",
        "caveat": "This scope follows GE's US refrigerator support page; PF display behavior and safe recovery steps can differ by exact model and market."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://products.geappliances.com/appliance/gea-support-search-content?contentId=16912"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-08-21",
      "updatedAt": "2026-08-21",
      "url": "https://faultcodelab.com/en/ge/refrigerator/pf/"
    },
    {
      "id": "ge-refrigerator-ci",
      "brand": "GE",
      "appliance": "refrigerator",
      "code": "CI",
      "aliases": [],
      "shortMeaning": "This code commonly appears when the refrigerator ice maker should be checked for proper operation.",
      "severity": "medium",
      "confidence": "official",
      "applicability": {
        "scope": "regional",
        "modelFamily": "GE refrigerators covered by the US support page",
        "market": "United States",
        "sourceUrl": "https://products.geappliances.com/appliance/gea-support-search-content?contentId=16912",
        "verifiedAt": "2026-06-24",
        "caveat": "This scope follows GE's US refrigerator support page; CI display behavior and permitted ice-maker checks can differ by exact model and market."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://products.geappliances.com/appliance/gea-support-search-content?contentId=16912"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-06-24",
      "updatedAt": "2026-06-24",
      "url": "https://faultcodelab.com/en/ge/refrigerator/ci/"
    },
    {
      "id": "samsung-refrigerator-21e",
      "brand": "Samsung",
      "appliance": "refrigerator",
      "code": "21E",
      "aliases": [],
      "shortMeaning": "Samsung documents 21E as a freezer-fan feedback alert, often linked to frost, a door-seal gap, or a fan problem.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "broad-appliance",
        "modelFamily": "Samsung refrigerators that display 21E",
        "market": "United States",
        "sourceUrl": "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "verifiedAt": "2026-07-30",
        "caveat": "The official US guide explains 21E without listing every supported refrigerator; confirm the exact model manual before assuming fan location or defrost controls."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.samsung.com/us/support/troubleshoot/TSG10007315/"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/samsung/refrigerator/21e/"
    },
    {
      "id": "samsung-refrigerator-22e",
      "brand": "Samsung",
      "appliance": "refrigerator",
      "code": "22E",
      "aliases": [
        "22C"
      ],
      "shortMeaning": "Samsung documents 22E and 22C as fridge-fan alerts that may follow the refrigerator door being left open too long.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "broad-appliance",
        "modelFamily": "Samsung refrigerators that display 22E or 22C",
        "market": "United States",
        "sourceUrl": "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "verifiedAt": "2026-07-30",
        "caveat": "Samsung groups 22E and 22C in its US guide but does not list every compatible model; confirm the exact manual before assuming control layout or fan access."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.samsung.com/us/support/troubleshoot/TSG10007315/"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/samsung/refrigerator/22e/"
    },
    {
      "id": "samsung-refrigerator-83e",
      "brand": "Samsung",
      "appliance": "refrigerator",
      "code": "83E",
      "aliases": [],
      "shortMeaning": "Samsung documents 83E as abnormal compressor current, sometimes after a surge or power anomaly.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "broad-appliance",
        "modelFamily": "Samsung refrigerators that display 83E",
        "market": "United States",
        "sourceUrl": "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "verifiedAt": "2026-07-30",
        "caveat": "The official guide identifies the reported electrical condition but does not prove one failed component or list every supported model; leave compressor and live-voltage diagnosis to qualified service."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.samsung.com/us/support/troubleshoot/TSG10007315/"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/samsung/refrigerator/83e/"
    },
    {
      "id": "samsung-refrigerator-88-88",
      "brand": "Samsung",
      "appliance": "refrigerator",
      "code": "88 88",
      "aliases": [],
      "shortMeaning": "Samsung documents 88 88 as a communication fault that may appear when power is interrupted during startup.",
      "severity": "medium",
      "confidence": "official",
      "applicability": {
        "scope": "broad-appliance",
        "modelFamily": "Samsung refrigerators that display 88 88",
        "market": "United States",
        "sourceUrl": "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "verifiedAt": "2026-07-30",
        "caveat": "Samsung describes the display broadly without a complete model list; confirm the exact model guide and do not transfer this meaning to other four-digit displays."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "https://www.samsung.com/us/support/answer/ANS10006926/"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/samsung/refrigerator/88-88/"
    },
    {
      "id": "samsung-refrigerator-of-of",
      "brand": "Samsung",
      "appliance": "refrigerator",
      "code": "OF OF",
      "aliases": [
        "OFF OFF",
        "O FF"
      ],
      "shortMeaning": "Samsung documents OF OF, O FF, and OFF OFF as a Cooling Off mode that disables refrigeration rather than reporting a fault.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "broad-appliance",
        "modelFamily": "Samsung refrigerators with a Cooling Off mode display",
        "market": "United States",
        "sourceUrl": "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "verifiedAt": "2026-07-30",
        "caveat": "Samsung documents multiple display variants and different control layouts; use the exact model manual instead of assuming the common two-button sequence applies."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.samsung.com/us/support/troubleshoot/TSG10007315/",
        "https://www.samsung.com/us/support/answer/ANS10006926/"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/samsung/refrigerator/of-of/"
    },
    {
      "id": "sub-zero-refrigerator-05",
      "brand": "Sub-Zero",
      "appliance": "refrigerator",
      "code": "05",
      "aliases": [
        "EC05"
      ],
      "shortMeaning": "Sub-Zero documents 05 on 600 Series refrigeration as a refrigerator-cabinet thermistor reading that is open, shorted, or repeatedly erratic.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "model-family",
        "modelFamily": "Sub-Zero 600 Series refrigeration",
        "market": "United States",
        "revision": "Official 600 Series support article",
        "sourceUrl": "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-05",
        "verifiedAt": "2026-07-30",
        "caveat": "This meaning is limited to the Sub-Zero 600 Series article on the United States support site; confirm the complete model and serial because current Classic, Designer, PRO, and other legacy series use separate support guidance."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-05"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/sub-zero/refrigerator/05/"
    },
    {
      "id": "sub-zero-refrigerator-06",
      "brand": "Sub-Zero",
      "appliance": "refrigerator",
      "code": "06",
      "aliases": [
        "EC06",
        "EC 06"
      ],
      "shortMeaning": "Sub-Zero documents 06 on 600 Series refrigeration as a refrigerator-evaporator thermistor signal that is open, shorted, or inconsistent.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "model-family",
        "modelFamily": "Sub-Zero 600 Series refrigeration",
        "market": "United States",
        "revision": "Official 600 Series support article",
        "sourceUrl": "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-06",
        "verifiedAt": "2026-07-30",
        "caveat": "Apply this 06 interpretation only to Sub-Zero 600 Series refrigeration covered by the United States support article; do not transfer it to a current or different legacy series without its own official code page."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-06"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/sub-zero/refrigerator/06/"
    },
    {
      "id": "sub-zero-refrigerator-07",
      "brand": "Sub-Zero",
      "appliance": "refrigerator",
      "code": "07",
      "aliases": [
        "EC07",
        "EC 07"
      ],
      "shortMeaning": "Sub-Zero documents 07 on 600 Series refrigeration as a freezer-cabinet thermistor reading that is open, shorted, or repeatedly erratic.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "model-family",
        "modelFamily": "Sub-Zero 600 Series refrigeration",
        "market": "United States",
        "revision": "Official 600 Series support article",
        "sourceUrl": "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-07",
        "verifiedAt": "2026-07-30",
        "caveat": "This 07 meaning belongs only to the Sub-Zero 600 Series family represented by the United States support article; verify the model and serial before treating an identical number on another series as equivalent."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-07"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/sub-zero/refrigerator/07/"
    },
    {
      "id": "sub-zero-refrigerator-20",
      "brand": "Sub-Zero",
      "appliance": "refrigerator",
      "code": "20",
      "aliases": [
        "EC20",
        "EC 20"
      ],
      "shortMeaning": "Sub-Zero documents 20 on 600 Series refrigeration as a freezer-defrost underheat condition with missing feedback at defrost start.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "model-family",
        "modelFamily": "Sub-Zero 600 Series refrigeration",
        "market": "United States",
        "revision": "Official 600 Series support article",
        "sourceUrl": "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-20",
        "verifiedAt": "2026-07-30",
        "caveat": "Use this code 20 interpretation only for Sub-Zero 600 Series refrigeration covered by the cited United States support article; the wire-color detail is service context, not an owner test instruction."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-20"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/sub-zero/refrigerator/20/"
    },
    {
      "id": "sub-zero-refrigerator-21",
      "brand": "Sub-Zero",
      "appliance": "refrigerator",
      "code": "21",
      "aliases": [
        "EC21",
        "EC 21"
      ],
      "shortMeaning": "Sub-Zero documents 21 on 600 Series refrigeration as a defrost-overheat warning whose owner path depends on actual compartment temperature.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "model-family",
        "modelFamily": "Sub-Zero 600 Series refrigeration",
        "market": "United States",
        "revision": "Official 600 Series support article",
        "sourceUrl": "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-21",
        "verifiedAt": "2026-07-30",
        "caveat": "This temperature-gated 21 procedure is limited to Sub-Zero 600 Series controls on the United States support page; confirm the model and serial because the clear method changes before serial 1810000."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-21"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/sub-zero/refrigerator/21/"
    },
    {
      "id": "sub-zero-refrigerator-24",
      "brand": "Sub-Zero",
      "appliance": "refrigerator",
      "code": "24",
      "aliases": [
        "EC24",
        "EC 24"
      ],
      "shortMeaning": "Sub-Zero documents 24 on 600 Series refrigeration as a defrost-underheat warning with an owner response only near normal temperatures.",
      "severity": "high",
      "confidence": "official",
      "applicability": {
        "scope": "model-family",
        "modelFamily": "Sub-Zero 600 Series refrigeration",
        "market": "United States",
        "revision": "Official 600 Series support article",
        "sourceUrl": "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-24",
        "verifiedAt": "2026-07-30",
        "caveat": "Apply this 24 procedure only to Sub-Zero 600 Series refrigeration with the cited door-ajar alarm control on the United States support page; another series or control panel needs its own official instructions."
      },
      "editorial": {
        "status": "needs-review",
        "reviewedAt": null,
        "method": null,
        "rationale": null
      },
      "sourceUrls": [
        "https://www.subzero-wolf.com/assistance/answers/sub-zero/600-series/600-series-error-code-24"
      ],
      "sourceEvidence": [],
      "lastVerifiedAt": "2026-07-30",
      "updatedAt": "2026-07-30",
      "url": "https://faultcodelab.com/en/sub-zero/refrigerator/24/"
    }
  ]
}