Models: ACMK-H65/5, ACMK-H130/5
The fault | The fault code definition | possible cause | Solution | |
code | ||||
1. The water flow switch and the power supply wires are not well connected | 1. reconnect the wires firmly | |||
2. The water flow switch malfunction | 2. Replace a normal water flow switch | |||
E01 | The water flow switch protection | 3. Circulating the water pump malfunction | 3. Repair or replace the circulating water pump | |
4. The water filter clogging | 4. Clean or replace the water filter | |||
5. The evaporator tubes have a dirty plugging phenomenon | 5. Clean the evaporator tubes | |||
E05 | 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 | ||
Return the water temperature | 1. The temperature sensor broken | 1. Replace the sensor | ||
E07 | 2. Sensor plug insert again to PCB | 2. Reconnect the sensor firmly | ||
sensor the fault | ||||
3. Main control board malfunction | 3. Replace the main control board | |||
The water outlet temperature sensor | 1. The temperature sensor broken | 1. Replace the sensor | ||
E08 | 2. Sensor plug insert again to PCB | 2. Reconnect the sensor firmly | ||
the fault | ||||
3. Main control board malfunction | 3. Replace the main control board | |||
The outdoor ambient temperature | 1. The temperature sensor broken | 1. Replace the sensor | ||
E09 | 2. Sensor plug insert again to PCB | 2. Reconnect the sensor firmly | ||
sensor the fault | 3. Main control board malfunction | 3. Replace the main control board | ||
1. The temperature sensor broken | 1. Replace the temperature sensor | |||
E12 | Anti-hyperthermal protection | 2. Circulating the water pump malfunction | 2. Repair or replace the circulating water pump | |
in heating mode | 3. The water filter clogging | 3. Clean or replace the water filter | ||
4. The evaporator tubes have a dirty plugging phenomenon | 4. Clean the evaporator tubes | |||
The water flow shortage protection | 1. The return of the water temperature or the water inlet sensor broken | 1. Replace the temperature sensor | ||
2. The water filter clogging | 2. Clean or replace the water filter | |||
E13 | (Chilled the water big temperature | |||
3. Circulating the water pump malfunction | 3. Repair or replace the circulating water pump | |||
difference) | ||||
4. The evaporator tubes have a dirty plugging phenomenon | 4. Clean the evaporator tubes | |||
1. The connection plug loose | 1. reconnect firmly | |||
E15 | Communication the fault between | 2. Wired controller malfunction | 2. replace a new one | |
wired 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 | |||
1. The connection plug loose | 1. reconnect firmly | |||
Communication the fault between | 2. The communication wire between modules is a short circuit | 2. replace a new one | ||
E30 | or open circuit | |||
different 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 |
E18 | Subsystem1#highpressure | 1. the outdoor ventilation is insufficient | 1. Improve or enhance the ventilation | ||
protection | 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 | ||||
E19 | Subsystem 2#high pressure | motor lose | |||
protection | 4. the outdoor fan stops working | 4. Eliminate the malfunction cause | |||
5. the connection between the high-pressure switch and the main | 5. Reconnect the wire plug to the main control board | ||||
Subsystem 3#high pressure | |||||
E20 | control board lose | ||||
protection | 6. High-pressure switch malfunction | 6. Replace the high-pressure switch | |||
7. the outdoor exchanger is dirty or sticky | 7. Clean the heat exchanger | ||||
Subsystem 4#high pressure | |||||
E21 | 8. there are some airs in the refrigerant line | 8. Refill the freon unit after vacuuming it | |||
protection | 9. The capillary or the filter is blocked | 9. Replace the capillary or filter | |||
E22 | Subsystem 1#low pressure | 1. Circulating the water pump malfunction | 1. Repair it or change a normal one | ||
2. Clean the water filter | |||||
protection | 2. The water filter clogging | ||||
3. Clean the evaporator tubes | |||||
E23 | Subsystem 2#low pressure | 3. The evaporator tubes have a dirty plugging phenomenon | |||
4. The connection between the low-pressure switch and the main | |||||
protection | 4. Reconnect the wire to the main control board | ||||
control board lose | |||||
Subsystem 3#low pressure | |||||
E24 | 5. Low-pressure switch malfunction | 5. Replace the low-pressure switch | |||
protection | 6. Refrigerant leak | ||||
6. Find out the leak point, repair the welding, refill the freon unit | |||||
Subsystem 4#low pressure | |||||
E25 | 7. The capillary or the filter is blocked | after vacuuming it | |||
protection | |||||
7. Replace the capillary or filter | |||||
Subsystem 1# air discharge | 1. the outdoor ventilation is insufficient | 1. Improve or enhance the ventilation | |||
2. the outdoor fan blade is broken | 2. Replace the fan blade | ||||
E26 | temperature overhigh | ||||
protection | 3. the connection between the fan blade and the outdoor fan | 3. Tighten or replace the sleeve | |||
motor lose | |||||
Subsystem 2# air discharge | |||||
E27 | 4. the outdoor fan stops working | 4. Eliminate the malfunction cause | |||
temperature overhigh | 5. the connection between the discharge temperature sensor | 5. Reconnect the wire plug to the main control board | |||
protection | |||||
and the main control board lose | |||||
Subsystem 3# air discharge | 6. the outdoor exchanger is dirty or sticky | 6. Clean the heat exchanger | |||
7. discharge temperature sensor deviation | 7. Replace the sensor | ||||
E28 | temperature overhigh | ||||
8. Refrigerant leak | 8. Find out the leak point, repair the welding, refill the freon unit | ||||
protection | |||||
after vacuuming it | |||||
Subsystem 4# air discharge | 9. The indoor capillary or the filter is blocked | ||||
9. Replace the capillary or filter | |||||
E29 | temperature overhigh | 10. there are some airs in the refrigerant line | 10. Find out the leak point, repair the welding, refill the freon | ||
protection | unit after vacuuming it | ||||
1. the water outlet temperature sensor malfunction | 1. Replace a normal one | ||||
2. Circulating the water pump malfunction | 2. Repair it or change a normal one | ||||
E33 | Anti-freezing protection in | 3. The water filter clogging | 3. Clean the water filter | ||
cooling mode | 4. The evaporator tubes have a dirty plugging phenomenon | 4. Clean the evaporator tubes | |||
5. Refrigerant leak | 5. Find out the leak point, repair the welding, refill the freon unit | ||||
after vacuuming it | |||||
E34 | Subsystem 1# the compressor | 1. The outdoor ventilation is insufficient | 1. Improve or enhance the ventilation | |
overcurrent protection | 2. Tighten or replace the sleeve | |||
2. The connection between the fan blade and the outdoor fan | ||||
Subsystem 2# the compressor | ||||
E35 | motor lose | 3. Eliminate the malfunction cause | ||
overcurrent protection | 3. the outdoor fan stops working | |||
4. Replace the fan blade | ||||
4. The outdoor fan blade is broken | ||||
Subsystem 3# the compressor | ||||
E36 | 5. Clean the heat exchanger | |||
5. The outdoor exchanger is dirty or sticky | ||||
overcurrent protection | 6. Replace the capillary or filter | |||
6. Pipeline ice blocking or dirty | ||||
Subsystem 4# the compressor | 7. Release some refrigerant | |||
E37 | 7. Refrigerant overcharged | |||
overcurrent protection | ||||
E38 | Subsystem 1# 4-way valve the fault | 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 | |||
E39 | Subsystem 2# 4-way valve the fault | |||
blow-by | ||||
E40 | Subsystem 3# 4-way valve the fault | 3. The outdoor ambient temperature sensor or exchanger coil | 3. Replace a normal one | |
temperature sensor malfunction | ||||
E41 | Subsystem 4# 4-way valve the fault | |||
4. The main PCB failure | 4. Replace the main PCB board | |||
E42 | Subsystem 1# discharge | |||
temperature sensor the fault | ||||
E43 | Subsystem 2# discharge | 1. Sensor is an open or short circuit | 1. Replace the sensor | |
temperature sensor the fault | ||||
2. Sensor plug insert again | 2. Reinsert firmly | |||
Subsystem 3# discharge | ||||
E44 | 3. Main control board malfunction | 3. Replace the main control board | ||
temperature sensor the fault | ||||
E45 | Subsystem 4# discharge | |||
temperature sensor the fault | ||||
E46 | Subsystem 1# exchanger coil | |||
temperature sensor the fault | ||||
E47 | Subsystem 2# exchanger coil | 1. Sensor is an open or short circuit | 1. Replace the sensor | |
temperature sensor the fault | ||||
2. Sensor plug insert again | 2. Reinsert firmly | |||
Subsystem 3# exchanger coil | ||||
E48 | 3. Main control board malfunction | 3. Replace the main control board | ||
temperature sensor the fault | ||||
E49 | Subsystem 4# exchanger coil | |||
temperature sensor the fault | ||||
E53 | Module type dip switch setting | Module type dip switch setting incorrect | Reset the Module type dip switch setting concerning the | |
incorrect | wiring diagram | |||
E54 | Module address repeat | Module address dip switch setting incorrect | reset address setting dip switch concerning wiring | |
diagram as needed | ||||