Original corpus study
How appliance brands document error codes
A reproducible snapshot of FaultCodeLab's source-backed error-code corpus. It shows how manufacturers present codes and their documented scope, so a short display string can be read with the right brand and appliance context.
What this study measures
The snapshot is based on the committed FaultCodeLab record corpus as of. It measures record coverage, source scope, display formats, and repeated code strings.
The page uses static values that are checked against the corpus by a repository test. It is a documentation study, not a diagnosis guide.
Snapshot
- 249 source-backed error-code records
- 35 appliance brands
- 51 brand and appliance pairs
- 34 manufacturer source hosts
Documented appliance coverage
| Appliance type | Documented records |
|---|---|
| washer | 104 |
| dishwasher | 93 |
| dryer | 22 |
| refrigerator | 21 |
| range | 9 |
Documentation scope is part of the meaning
These labels describe the boundary stated by a record's source. They do not describe appliance ownership or distribution outside the corpus.
| Source scope | Records | How to read it |
|---|---|---|
| regional | 87 | An official source applies to a stated market or region. |
| exact-model | 56 | An official source names a specific model. |
| model-family | 51 | An official source names a model family or series. |
| broad-appliance | 29 | An official source applies at appliance level without a narrower label. |
| not specified | 26 | The current record has no structured scope label. |
Short display strings can recur across brands
A shared string is a lookup cue, not a shared diagnosis. Keep the brand, appliance type, spacing, and source scope together before using a record.
| Visible code | Brands in this corpus |
|---|---|
E3 | 6 |
PF | 6 |
E4 | 5 |
E1 | 4 |
E12 | 4 |
Manufacturers use more than one display format
Keep the code exactly as shown when searching. Spaces, hyphens, and grouped characters can be useful context rather than decoration.
| Display format | Records |
|---|---|
| letters followed by numbers | 117 |
| other manufacturer display format | 54 |
| letters only | 33 |
| spaced or hyphenated groups | 18 |
| letter-number groups | 12 |
| numbers followed by letters | 9 |
| numbers only | 6 |
Safety boundaries remain separate
The corpus records whether limited owner-safe checks are appropriate; that status is separate from the code's documented meaning.
- 198 records: no
The record keeps the next step with qualified service rather than an owner action. - 51 records: limited
The record permits only bounded owner-safe checks before its service boundary.
Source mix
Every record in this snapshot uses an official source type. The source label supports traceability, while the stated model, family, and region still set the record's boundary.
- 249 records: official
Inspect the source-backed corpus
Use the dataset for machine-readable records, the methodology for the evidence and confidence rules, and coverage to see the current scope.