Open Access
Table 1
Variable identification results.
| Attribute | Attribute value | Symbol | Attribute | Attribute value | Symbol |
|---|---|---|---|---|---|
| Event | Cooling and heating failure | E1 | Object | Pipe fittings and valves | O1 |
| Not working | E2 | Condenser | O2 | ||
| Water leakage | E3 | Evaporator | O3 | ||
| Abnormal sound | E4 | Compressor | O4 | ||
| Blade not working | E5 | Sensor | O5 | ||
| Others | E6 | Electric control box | O6 | ||
| Source | Refrigeration system | S1 | Motor | O7 | |
| Electric control system | S2 | Louver | O8 | ||
| Ventilation system | S3 | Air duct and Components | O9 | ||
| Box system | S4 | Panel | O10 | ||
| Accessories | S5 | Box body | O11 | ||
| Type | Loss of parts | T1 | Support | O12 | |
| Missing parts | T2 | Water tray | O13 | ||
| Abnormal assembly | T3 | Others | O14 | ||
| Others | T4 |
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