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Variable frequency split machines are widely used in the HVAC industry to provide efficient and cost-effective cooling solutions. In this article, we will discuss the common fault indicators for various models of variable frequency split machines.
1. Fault Indicators for KFR-28GW/BPY, KFR-32GW/BPY and KFR-45GW/BPY Indoor Units
The following table summarizes the different LED statuses that indicate a specific type of fault in these indoor units:
| LED Status | Fault Type ||------------|---------------------------------------------------------|| × × ○ ☆ | Module protection || ○ × × ☆ | Top temperature protection of compressor || × ○ × ☆ | Open or short circuit in outdoor temperature sensor || ○ × ○ ☆ | Low or high outdoor temperature during cooling/heating || x ○ ○ ☆ | High or low voltage protection || ○○×☆ | Current protection ||○○○☆ | Open or short circuit in indoor room/evaporator sensor |
In addition to these LED indicators, other faults include evaporator high/low temperature protection, indoor humidity mode low temperature protection, fan speed control fAIlure and zero-crossing detection error.
2. Fault Indicators for KFR-26GW/I1BPY, KFR-32GW/I1BPY, KFR-26GW/CBPY and KFR-32GW/CBPY Variable Frequency Split Machines
The following table summarizes the different LED statuses that indicate a specific type of fault in these variable frequency split machines:
* 化霜灯: Defrost light * 定时灯: Timing light * 自动灯(或换气灯): Auto (or ventilation) light * 运行灯: Running light * LED状态: LED status
| LED Status | Fault Type ||------------|---------------------------------------------------------|| × × ○ ☆ | Module protection || ○ × × ☆ | Top temperature protection of compressor || x ○ √ ☆ | Open or short circuit in outdoor temperature sensor || x ○ ○ ☆ | High or low voltage protection ||○○○☆ | Open or short circuit in indoor room/evaporator sensor |
In addition to these LED indicators, other faults include fan speed control fAIlure, zero-crossing detection error and EEPROM parameter error.
3. Fault Indicators for KFR-26GW/BPY-R, KFR-35GW/BPY-R, KFR-26GW/BPY-S, KFR-35GW/BPY-S and KFR-26GW/BPUYP-V, KFR-32GW/BPUYP-V Variable Frequency Split Machines
The following table summarizes the different LED statuses that indicate a specific type of fault in these variable frequency split machines:
* 化霜灯: Defrost light * 定时灯: Timing light * 干燥防霉灯:Dehumidification and mildew
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