#灭 *亮
| 符号 | 高效灯 | 运行灯 | 定时灯 | 电源灯 | 故障内容 |
| 1 | # | # | # | * | 室温传感器 |
| 2 | # | # | * | # | 热交传感器 |
| 3 | # | # | * | * | 蒸发器冻结 |
| 4 | # | * | # | # | 制热过负荷 |
| 5 | # | * | # | * | 通信故障 |
| 6 | # | * | * | # | 瞬间停电 |
| 7 | # | * | * | * | 过电流 |
| 8 | * | # | # | # | 风扇故障 |
| 符号 | 高效灯 | 运行灯 | 定时灯 | 电源灯 | 故障内容 |
| 1 | # | # | # | * | 室温传感器 |
| 2 | # | # | * | # | 热交传感器 |
| 3 | # | # | * | * | 蒸发器冻结 |
| 4 | # | * | # | # | 制热过负荷 |
| 5 | # | * | # | * | 通信故障 |
| 6 | # | * | * | # | 瞬间停电 |
| 7 | # | * | * | * | 过电流 |
| 8 | * | # | # | # | 风扇故障 |
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