Simple Self-Diagnosis by Malfunction Code For Daikin Air Conditioner
For error codes beginning with 6, 7, 8 or 9, stay on this page and scroll down
For error codes beginning with A or C, find causes here
For error codes beginning with E, F, H, J, L, M or P, find causes here
For error codes beginning with U, find causes here
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Other Error Codes and Contents | Supposed causes | Parts affected |
---|---|---|
60 External protection device activated (Heat reclaim ventilator) | Actuation of external protection device Defective output signal wiring Defective control PCB | Heat reclaim ventilator |
64 Malfunction of indoor air thermistor (Heat reclaim ventilator) | Defective connector contact Defective indoor air thermistor Defective control PCB | Heat reclaim ventilator |
65 Malfunction of outdoor air thermistor (Heat reclaim ventilator) | Defective connector contact Defective outdoor air thermistor Defective control PCB | Heat reclaim ventilator |
6A Malfunction of damper system (Heat reclaim ventilator) | Defective connector contact Defective limit switch Defective damper motor Defective control PCB | Heat reclaim ventilator |
70 System No. 2 Compressor overheat | Shortage of refrigerant amount Defective connector contact Leakage of four way valve | Chiller |
71 System No. 2 Compressor overcurrent | Shortage of refrigerant amount Short circuit Defective compressor | Chiller |
72 System No. 2 Fan motor overcurrent | Defective fan motor connector contact Defective fan motor Defective PCB | Chiller |
73 System No. 2 Actuation of high pressure switch (HPS) | Dirty heat exchanger Shortage of water volume Clogged refrigerant piping Defective connector contact Defective HPS | Chiller |
74 System No. 2 Actuation of low pressure switch (LPS) | Clogged refrigerant piping Defective connector contact Shortage of gas Defective LPS | Chiller |
75 System No. 2 Malfunction of low pressure sensor | Defective connector contact Defective low pressure sensor Defective PCB | Chiller |
76 System No. 2 Malfunction of high pressure sensor | Defective connector contact Defective high pressure sensor Defective PCB | Chiller |
77 System No. 1 Malfunction of fan inter lock | Defective relay contact Broken wire | Chiller |
78 System No. 2 Malfunction of fan inter lock | Defective relay contact Broken wire | Chiller |
7A System No. 2 Malfunction of compressor current sensor | Defective current sensor Defective compressor Defective outdoor unit PCB | Chiller |
7C System No. 2 Malfunction of pump inter lock | Cooling water pump interlock actuated | Chiller |
80 Malfunction of entering water temperature thermistor | Defective connector contact Defective entering water temperature thermistor | Chiller |
81 Malfunction of leaving water temperature thermistor or drain pipe heater | Defective connector contact Defective leaving water temperature thermistor | Chiller |
82 System No. 1 Malfunction of refrigerant thermistor | Defective connector contact Defective refrigerant thermistor | Chiller |
83 System No. 2 Malfunction of refrigerant thermistor | Defective connector contact Defective refrigerant thermistor | Chiller |
84 System No. 1 Malfunction of heat exchanger thermistor | Defective connector contact Defective heat exchanger thermistor | Chiller |
85 System No. 2 Malfunction of heat exchanger thermistor | Defective connector contact Defective heat exchanger thermistor | Chiller |
86 System No. 1 Malfunction of discharge pipe thermistor | Defective connecting connector Defective discharge pipe thermistor | Chiller |
88 System No. 2 Malfunction of discharge pipe temperature | Shortage of gas Defective discharge pipe thermistor Defective connector contact Clogged refrigerant piping | Chiller |
89 Malfunction of brazed-plate heat exchanger freezing | Dirty heat exchanger Shortage of refrigerant amount Defective thermistor | Chiller |
8A System No. 2 Malfunction of leaving water temperature thermistor | Defective connector contact Defective leaving water temperature thermistor | Chiller |
8E System No. 1 Malfunction of suction pipe thermistor 1 for heating | Defective connector contact Defective suction pipe thermistor | Chiller |
8F System No. 1 Malfunction of suction pipe thermistor 2 for heating | Defective connector contact Defective suction pipe thermistor | Chiller |
8H Abnormal hot water high temperature | Three way valve malfunction Defective thermistor Defect of water temperature setting | Chiller |
90 Abnormal chilled water quantity or abnormal AXP | Shortage of water volume Disconnection of AXP | Chiller |
91 System No. 2 Malfunction of electronic expansion valve | Defective connector contact Defective electronic expansion valve coil | Chiller |
92 System No. 2 Malfunction of suction pipe thermistor | Defective connector contact Defective suction pipe thermistor | Chiller |
94 Malfunction of transmission (between heat reclaim ventilator and fan unit) | Defective fan unit PCB Defective connecting wire between (1) and (2) | Heat reclaim ventilator |
95 System No. 1 Malfunction of inverter system | Defective fan inverter unit | Chiller |
96 System No. 2 Malfunction of inverter system | Defective fan inverter unit | Chiller |
97 Malfunction of thermal storage unit | Defective thermal storage unit | Chiller |
98 Malfunction of thermal storage brine pump | Actuation of thermal storage brine pump overcurrent (OC) | Chiller |
99 Malfunction of thermal storage brine tank | Low water level of thermal storage brine tank | Chiller |