春兰空调故障维修代码表（Code for fault maintenance of Chunlan air conditioner）.docVIP

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春兰空调故障维修代码表（Code for fault maintenance of Chunlan air conditioner）.doc

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春兰空调故障维修代码表（Code for fault maintenance of Chunlan air conditioner）

春兰空调故障维修代码表（Code for fault maintenance of Chunlan air conditioner） Code for fault maintenance of Chunlan air conditioner -------------------------------------------------------------------------------- Chunlan KFR-40, 50, 70, 100, 140LW/BdS Reasons of fault E1 fault display room inside and outside communication (voltage between GND and CMM swing around 6-7V) E2 compressor current E3 power supply voltage abnormal E4 refrigeration system high pressure protection, RT5 sensor abnormal E5 outdoor low temperature cold ring protection E6 protection (refrigeration state) E7RTI, RT2, RT3, RT2 abnormal temperature sensor open, E8RTI RT2, RT3 temperature sensor short Chunlan FR-180 and 260/S pipe mill Show the reason code E0 system fault voltage protection E1 two anti freeze protection E2 indoor temperature sensor open or short tube E3 indoor temperature sensor open circuit or short circuit E4 outdoor pipe temperature sensor open circuit or short circuit fault E6 E5 communication power supply protection E7 overcurrent protection E8 unloading protection E9 low voltage protection Chunlan RF-28W/AS10 air conditioning unit fault code Display power reasons of overvoltage and undervoltage fault lights three-phase power supply normal power over-voltage, flashing lamp power supply voltage is too low or too high (187-245V) abnormal defrost, lack of light air conditioning normal defrosting defrosting, phase light flash three-phase power phase (check signal line H and LP delay) overload, light air conditioning is three minutes delay delay, overload lights flash Heat protection K disconnect from voltage controller (check signal line B) Indoor signal wire terminal is defined as follows: A - B - power line voltage control and thermal protection input control line (weak ground), C - compressor output control line (weak ground), D outdoor pipe temperature sensor input connections (weak ground), E outdoor machine output control line (weak ground), F outdoor machine output control line (weak gr