The fault | The fault code definition | Possible cause | Solution | ||
code | |||||
1. The connection loose | 1. reconnect firmly | ||||
E5 | Wired controller | 2. Wired controller malfunction | 2. replace a new one | ||
3. The communication wire is an open or short circuit | 3. replace normal | ||||
communication with the fault | |||||
4. The indoor unit control board malfunction | 4. replace a new one | ||||
1. The drain pipe is blocked | 1. Clean the drain pipe | ||||
E4 | 2. Float switch short-circuit or unconnected | 2. Rapace float switch or reconnect it | |||
Drainage system the fault | 3. The power line of the water pump lose | 3. Reconnect the power line of the water pump | |||
4. The water pump is broken | 4. Replace the water pump | ||||
5. The indoor PCB is broken | 5. Replace PCB | ||||
1. Sensor directly contacts with the heat exchanger | 1. Refix the sensor correctly | ||||
E1 | The indoor ambient temperature | 2. Sensor plug insert again | 2. Reinsert | ||
sensor the fault | 3. Sensor is an open or short circuit | 3. Replace the sensor | |||
4. The indoor unit control board malfunction | 4. Replace the indoor unit control board | ||||
1. Sensor separated from the coil | 1. Refix the sensor correctly | ||||
E3 | The indoor coil temperature sensor | 2. Sensor plug insert again | 2. Reinsert | ||
the fault (TE) | 3. Sensor is an open or short circuit | 3. Replace the sensor | |||
4. The indoor unit control board malfunction | 4. Replace the indoor unit control board | ||||
1. Sensor separated from the coil | 1. Refix the sensor correctly | ||||
E2 | The outdoor coil temperature sensor | 2. Sensor plug insert again | 2. Reinsert | ||
the fault (TW) | 3. Sensor is an open or short circuit | 3. Replace the sensor | |||
4. The outdoor unit control board malfunction | 4. Replace the outdoor unit control board | ||||
1. Sensor directly contacts with the heat exchanger | 1. Refix the sensor correctly | ||||
E7 | The outdoor ambient temperature | 2. Sensor plug insert again | 2. Reinsert | ||
the sensor with the fault (TL) | 3. Sensor is an open or short circuit | 3. Replace the sensor | |||
4. The outdoor unit control board malfunction | 4. Replace the outdoor unit control board | ||||
1. Refrigerant leak | 1. Find out the leak point, repair the welding, refill | ||||
E0 | Refrigerant lack protection/4-way | the unit after vacuuming it | |||
valve the fault protection | 2. 4-way valve coil open or short circuit | 2. Replace the 4-way valve coil | |||
3. Valve block cannot get the designated position or Valve blow-by | 3. Replace the 4-way valve |
1. The outdoor unit is the power off | 1. Turn on the power for the outdoor unit | ||||
Communication the fault | 2. The communication wire of units lost | 2. Reconnect firmly | |||
F1 | 3. Insert the wrong plug into the indoor or outdoor unit control board | 3. Loosen and insert the right plug | |||
between the indoor unit and | |||||
the outdoor unit | 4. The communication wire is an open or short circuit | 4. Replace a normal communication wire | |||
5. The indoor unit control board malfunction | 5. Replace the control board | ||||
6. The outdoor unit control board malfunction | 6. Replace the control board | ||||
1. The connection loose | 1. Reconnect firmly | ||||
E5 | Wired controller | 2. Wired controller malfunction | 2. Replace a new one | ||
communication the fault | 3. The communication wire is an open or short circuit | 3. Replace a normal one | |||
4. The indoor unit control board malfunction | 4. Replace a new one | ||||
1. The drain pipe is blocked | 1. Clean the drain pipe | ||||
E4 | 2. Float switch short-circuit or unconnected | 2. Repace the float switch or reconnect it | |||
Drainage system the fault | 3. The power line of the water pump loose | 3. Reconnect the power line of the water pump | |||
4. The water pump is broken | 4. Replace the water pump | ||||
5. The indoor PCB is broken | 5. Replace PCB | ||||
Input the power supply phase | 1. Phase loss | 1. Reconnect the wires firmly | |||
E6 | 2. Low-voltage | 2. Check if the power supply is consistent with the | |||
sequence protection | nameplate | ||||
(The outdoor unit) | 3. Phase dislocation | 3. Exchange the two-phase sequence of the power | |||
supply | |||||
1. the outdoor fan blade broken | 1. Replace the fan blade | ||||
2. the connection between the fan blade and the outdoor fan motor | 2. Tighten or replace the sleeve | ||||
loose | |||||
3. the outdoor fan stops working | 3. Eliminate the malfunction cause | ||||
EA | Discharge temperature | 4. the outdoor ventilation insufficient | 4. Improve or enhance the ventilation | ||
protection | 5. the outdoor exchanger is dirty or sticky | 5. Clean the heat exchanger | |||
6. discharge temperature sensor deviation | 6. Replace the sensor | ||||
7. Refrigerant leak | 7. Find out the leak point, repair the welding, refill the freon | ||||
unit after vacuuming it | |||||
8. The capillary or the filter is blocked | 8. Replace the capillary or filter | ||||
E9 | High-pressure protection | 1. the globe valve is closed | 1. Open the globe valve | ||
2. the outdoor fan blade broken | 2. Replace the fan blade | ||||
3. the connection between the fan blade and the outdoor fan motor | 3. tighten or replace the sleeve | |||||
loose | ||||||
4. the outdoor fan stops working | 4. Eliminate the malfunction cause | |||||
5. the outdoor ventilation insufficient | 5. Improve or enhance the ventilation | |||||
6. the connection between the high-pressure switch and the control | 6. Reconnect the wire to the control board | |||||
board lose | ||||||
7. High-pressure switch malfunction | 7. Replace the high-pressure switch | |||||
8. the outdoor exchanger is dirty or sticky | 8. Clean the heat exchanger | |||||
9. there are some moistures in the refrigerant line | 9. Refill the freon unit after vacuuming it | |||||
10. The capillary or the filter is blocked | 10. Replace the capillary or filter | |||||
1. The globe valve is closed | 1. Open the globe valve | |||||
2. The indoor fan blade broken | 2. Tighten or replace the sleeve | |||||
3. The connection between the fan blade and the indoor fan motor | 3. The indoor fan blade broken | |||||
loose | ||||||
4. The outdoor fan stops working | 4. Eliminate the malfunction cause | |||||
E9 | Low-pressure protection | 5. Filter net is dirty | 5. Clean the filter | |||
6. Refrigerant leak | 6. Find out the leak point, repair the welding, refill the freon | |||||
unit after vacuuming it | ||||||
7. The connection between the low-pressure switch and the control | 7. Reconnect the wire to the control board | |||||
board lose | ||||||
8. Low-pressure switch malfunction | 8. Replace the low-pressure switch | |||||
9. The capillary or the filter is blocked | 9. Replace the capillary or filter | |||||
1. Sensor directly contacts with the heat exchanger | 1. Refix the sensor correctly | |||||
E1 | The indoor ambient temperature | 2. Sensor plug insert again | 2. Reinsert | |||
sensor the fault | 3. Sensor is an open or short circuit | 3. Replace the sensor | ||||
4. The indoor unit control board malfunction | 4. Replace the indoor unit control board | |||||
1. Sensor separated from the coil | 1. Refix the sensor correctly | |||||
E3 | The indoor coil temperature sensor | 2. Sensor plug insert again | 2. Reinsert | |||
the fault (TE) | 3. Sensor is an open or short circuit | 3. Replace the sensor | ||||
4. The indoor unit control board malfunction | 4. Replace the indoor unit control board | |||||
1. Sensor separated from the coil | 1. Refix the sensor correctly | |||||
E2 | The outdoor coil temperature | 2. Sensor plug insert again | 2. Reinsert | |||
sensor the fault (TW) | 3. Sensor is an open or short circuit | 3. Replace the sensor | ||||
4. The outdoor unit control board malfunction | 4. Replace the outdoor unit control board | |||||
The outdoor ambient | 1. Sensor directly contacts with the heat exchanger | 1. Refix the sensor correctly | ||||
E7 | 2. Sensor plug insert again | 2. Reinsert | ||||
temperature. Sensor | ||||||
3. Sensor is an open or short circuit | 3. Replace the sensor | |||||
abnormal (TL) | ||||||
4. the outdoor unit control board malfunction | 4. Replace the outdoor unit control board | |||||
E8 | Discharge temperature | 1. The sensor separated from the copper tube | 1. Refix the sensor correctly | |||
(Spenser the fault | 2. Sensor plug insert again | 2. Reinsert | ||||
3. Sensor is an open or short circuit | 3. Replace the sensor | ||||
4. The outdoor unit control board malfunction | 4. Replace the outdoor unit control board | ||||
1. Refrigerant leak | 1. Find out the leak point, repair the welding, refill the freon | ||||
E11 | Refrigerant lack protection/4- | unit after vacuuming it | |||
2. 4-way valve coil open or short circuit | 2. Replace the 4-way valve coil | ||||
way valve the fault protection | |||||
3. Valve block cannot get the designated position or Valve blow- | 3. Replace the 4-way valve | ||||
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