Models: ACMX-H65/5, ACMX-H95/5, ACMX-H130/5, ACMX-H65/5R1
the fault code | the fault code definition | possible cause | Solution | |
1 、 The water flow switch and the power supply wires are not well | 1. reconnect the wires firmly | |||
connected | 2. Replace a normal water flow switch | |||
E01 | 2. The water flow switch malfunction | |||
The water flow switch protection | 3. Repair or replace the circulating water pump | |||
3. Circulating the water pump malfunction | ||||
4. Clean or replace the water filter | ||||
4. The water filter clogging | ||||
5. Clean the evaporator tubes | ||||
5. The evaporator tubes have a dirty plugging phenomenon | ||||
E03 | The outdoor fan NO1. &NO3. overload | 1. The outdoor unit ventilation is insufficient | 1. Improve or enhance the ventilation | |
protection | ||||
E04 | The outdoor fan NO2. overload protection | 2. The fan motor stuck | 2. Replace the fan motor | |
E05 | Input the power supply phase sequence | 1. Phase loss | 1. reconnect the wires firmly | |
protection | 2. Phase dislocation | 2. change the two-phase sequence of the power supply | ||
E07 | Return the water temperature to the fault | 1. The temperature sensor broken | 1. Replace the sensor | |
2. Sensor plug insert again to PCB | 2. Reconnect the sensor firmly | |||
3. Main control board malfunction | 3. Replace the main control board | |||
E08 | The water outlet temperature is the fault | 1. The temperature sensor broken | 1. Replace the sensor | |
2. Sensor plug insert again to PCB | 2. Reconnect the sensor firmly | |||
3. Main control board malfunction | 3. Replace the main control board | |||
1. The temperature sensor broken | 1. Replace the temperature sensor | |||
2. Repair or replace the circulating water pump | ||||
E12 | Anti-hyperthermal protection | 2. Circulating the water pump malfunction | ||
3. Clean or replace the water filter | ||||
in heating mode | 3. The water filter clogging | |||
4. Clean the evaporator tubes | ||||
4. The evaporator tubes have a dirty plugging phenomenon | ||||
1 The return of the water temperature or the water inlet sensor | 1. Replace the temperature sensor | |||
The water flow shortage protection | broken | 2. Clean or replace the water filter | ||
E13 | 2. The water filter clogging | 3. Repair or replace the circulating water pump | ||
(Chilled the water big temperature difference) | ||||
3. Circulating the water pump malfunction | 4. Clean the evaporator tubes | |||
4. The evaporator tubes have a dirty plugging phenomenon | ||||
1. The connection plug loose | 1. Reconnect firmly | |||
E15 | Communication the fault between wired | 2. Wired controller malfunction | 2. Replace a new one | |
controller and PCB | 3. The communication wire is an open or short circuit | 3. Replace a normal one | ||
4. Main control board malfunction | 4. Replace a new one | |||
E16 | Circulating the water anti-freezing protection | 1. The outdoor ambient temperature is too low | 1. Start the heating mode | |
in winter | 2. The outdoor ambient temperature sensor malfunction | 2. Replace The outdoor ambient temperature sensor | ||
1. The outdoor ventilation is insufficient | 1. Improve or enhance the ventilation | |||
E26 | High discharge temperature protection of | 2. The outdoor fan blade is broken | 2. Replace the fan blade | |
the compressor 1# | 3. The connection between the fan blade and the outdoor fan | 3. Tighten or replace the sleeve | ||
motor lose | ||||
4. The outdoor fan stops working | 4. Eliminate the malfunction cause | |||
5. The connection between the discharge temperature sensor | 5. Reconnect the wire plug to the main control board | |||
E27 | High discharge temperature protection of | and the main control board lose | ||
the compressor 2# | 6. The outdoor exchanger is dirty or sticky | 6. Clean the heat exchanger | ||
7. Discharge temperature sensor deviation | 7. Replace the sensor | |||
8. Refrigerant leak | 8. Find out the leak point, repair the welding, refill | |||
High discharge temperature protection of | unit after vacuuming it | |||
E28 | 9. The indoor capillary or the filter is blocked | 9. Replace the capillary or filter | ||
the compressor 3# | 10. There are some airs in the refrigerant line | 10. Find out the leak point, repair the welding, refill | ||
the unit after vacuuming it | ||||
1. The connection plug loose | 1. Reconnect firmly | |||
E30 | Communication the fault between different | 2. The communication wire between modules is short | 2. Replace a new one | |
circuit or open circuit | ||||
modules | ||||
3. The communication wire is an open or short circuit | 3. Replace a normal one | |||
4. Main control board malfunction | 4. Replace a new one | |||
1. The water outlet temperature sensor malfunction | 1. Replace a normal one | |||
2. Repair it or change a normal one | ||||
2. Circulating the water pump malfunction | ||||
E33 | 3. Clean the water filter | |||
Anti-freezing protection in cooling mode | 3. The water filter clogging | |||
4. Clean the evaporator tubes | ||||
4. The evaporator tubes have a dirty plugging phenomenon | ||||
5. Refrigerant leak | 5. Find out the leak point, repair the welding, refill the freon | |||
unit after vacuuming it | ||||
E34 | Over-current protection of the compressor 1# | 1. The outdoor ventilation is insufficient | 1. Improve or enhance the ventilation | |
2. Tighten or replace the sleeve | ||||
2. The connection between the fan blade and the outdoor fan | ||||
motor lose | 3. Eliminate the malfunction cause | |||
3. The outdoor fan stops working | ||||
E35 | Over-current protection of the compressor 2# | 4. Replace the fan blade | ||
4. The outdoor fan blade is broken | ||||
5. The outdoor exchanger is dirty or sticky | 5. Clean the heat exchanger | |||
6. Replace the capillary or filter | ||||
6. Pipeline ice blocking or dirty | ||||
E36 | Over-current protection of the compressor 3# | 7. Release some refrigerant | ||
7. Refrigerant overcharged | ||||
1. 4-way valve coil open or short circuit | 1. Replace valve coil | |||
2. Valve block cannot get the designated position or Valve | 2. Replace valve body | |||
E38 | The four-way valve malfunction | blow-by | ||
3. The outdoor ambient temperature sensor malfunction or | 3. Replace a normal one | |||
exchanger coil temperature sensor | ||||
4. The main PCB failure | 4. Replace the main PCB board |
1. The outdoor ventilation is insufficient | 1. Improve or enhance the ventilation | |||||
2. The outdoor fan blade is broken | 2. Replace the fan blade | |||||
3. The connection between the fan blade and the outdoor fan | 3. Tighten or replace the sleeve | |||||
motor lose | ||||||
E39 | 4. The outdoor fan stops working | 4. Eliminate the malfunction cause | ||||
High-pressure protection | 5. The connection between the high-pressure switch and the main | 5. Reconnect the wire plug to the main control board | ||||
control board lose | ||||||
6. High-pressure switch malfunction | 6. Replace the high-pressure switch | |||||
7. The outdoor exchanger is dirty or sticky | 7. Clean the heat exchanger | |||||
8. There are some airs in the refrigerant line | 8. Refill the freon unit after vacuuming it | |||||
9. The capillary or the filter is blocked | 9. Replace the capillary or filter | |||||
1. Circulating the water pump malfunction | 1. Repair it or change a normal one | |||||
2. The water filter clogging | 2. Clean the water filter | |||||
3. The evaporator tubes have a dirty plugging phenomenon | 3. Clean the evaporator tubes | |||||
E40 | Low-pressure protection | 4. The connection between the low-pressure switch and the main | 4. Reconnect the wire to the main control board | |||
control board lose | ||||||
5. Low-pressure switch malfunction | 5. Replace the low-pressure switch | |||||
6. Refrigerant leak | 6. Find out the leak point, repair the welding, refill the freon | |||||
unit after vacuuming it | ||||||
7. The capillary or the filter is blocked | 7. Replace the capillary or filter | |||||
1. Sensor is an open or short circuit | 1. Replace the sensor | |||||
E41 | Exchanger coil bottom temperature | 2. The sensor separates from the copper tube | 2. Refix the sensor correctly | |||
sensor the fault | 3. Sensor plug insert again | 3. Reinsert firmly | ||||
4. Main control board malfunction | 4. Replace the main control board | |||||
E42 | Discharge temperature sensor the fault of | 1. Sensor is an open or short circuit | 1. Replace the sensor | |||
the compressor 1# | ||||||
2. The sensor separates from the copper tube | 2. Refix the sensor correctly | |||||
E43 | Discharge temperature sensor the fault of | |||||
the compressor 2# | 3. Sensor plug insert again | 3. Reinsert firmly | ||||
E44 | Discharge temperature sensor the fault of | 4. Main control board malfunction | 4. Replace the main control board | |||
the compressor 3# | ||||||
1. Sensor is an open or short circuit | 1. Replace the sensor | |||||
E50 | Suction temperature sensor the fault | 2. The sensor separates from the copper tube | 2. Refix the sensor correctly | |||
3. Sensor plug insert again | 3. Reinsert firmly | |||||
4. Main control board malfunction | 4. Replace the main control board | |||||
1. Sensor is an open or short circuit | 1. Replace the sensor | |||||
E51 | Evaporator temperature sensor the fault | 2. The sensor separates from the copper tube | 2. Refix the sensor correctly | |||
3. Sensor plug insert again | 3. Reinsert firmly | |||||
4. Main control board malfunction | 4. Replace the main control board | |||||
E52 | 1. The outdoor ventilation is insufficient | 1. Improve or enhance the ventilation | ||||
Cooling overload protection | 2. Replace the fan blade | |||||
2. The outdoor fan blade is broken | ||||||
3. Tighten or replace the sleeve | ||||||
3. The connection between the fan blade and the outdoor fan | 4. Eliminate the malfunction cause | |||
motor lose | ||||
4. The outdoor fan stops working | 5. Replace the sensor | |||
5. Exchanger coil bottom temperature sensor malfunction | 6. Clean the heat exchanger | |||
6. The outdoor exchanger is dirty or sticky | 7. Refill the freon unit after vacuuming it | |||
7. There are some airs in the refrigerant line | 8. Replace the capillary or filter | |||
8. The capillary or the filter is blocked | ||||
E53 | Module type dip switch setting incorrect | Module type dip switch setting incorrect | Reset Module type dip switch setting with reference | |
to the wiring diagram | ||||
E54 | Module address repeat | Module address dip switch setting incorrect | Reset address setting dip switch concerning | |
wiring diagram as needed | ||||