Error code
E01
Wrong-Phase Protection
E02
Power Supply Lack Of Phase
E03
Outside Water Flow Switch Fault
E04
Abnormal Communication Between The
Main Control Board And Remote
Module
E05
High-Pressure Switch One Fault
E06
Low-Pressure Switch One Fault
E07
High-Pressure Switch Two Fault
E08
Low-Pressure Switch Two Fault
E10
Indoor Side Water Flow Failure
E11
Limited Time Protection
Exhaust Gas Temperature One Too High
E12
Fault
Exhaust Gas Temperature Two Too High
E13
Fault
E14
Hot Water Tank Temperature Failure
E15
Water Inlet Temperature Sensor Failure
E16
Coil Sensor One Failure
E17
Coil Sensor Two Failure
E18
Exhaust Gas Sensor One Fault
E19
Exhaust Gas Sensor Two Fault
E20
Indoor Temperature Sensor Failure
E21
Environmental Sensor Failure
E22
User Return Water Sensor Failure
E23
Cooling Subcooling Protection
Trouble Analysis
Fault Description
47
Failure Causes
Power supply phase sequence error
The power supply is out of phase
1. Circulating pump failed, or water
system blocked
2. Water flow switch failed, or
opposite installed direction
3. The lift of the circulating pump is
not enough
4. Circulating pump has opposite
installed direction
Check the communication connection
1. High-voltage switch failed
2. Excessive refrigerant
3. Fan doesn't work typically, or water
circulated abnormally
4. Air or other objects mixed into the
refrigeration system
5. Too much scale in the water heat
exchanger
1. Low-voltage switch fault
2. Lack of refrigerant
3. Fan doesn't work normally
4. Block exists in refrigeration system
Same as E05
Same as E06
Same as E03
Enter the power-on password
Lack of refrigerant in the fluorine
circuit system or sensor damage
Lack of refrigerant in the fluorine
circuit system or sensor damage
Damaged motherboard or sensor
Damaged motherboard or sensor
Damaged motherboard or sensor
Damaged motherboard or sensor
Damaged motherboard or sensor
Damaged motherboard or sensor
Damaged motherboard or sensor
Damaged motherboard or sensor
Damaged motherboard or sensor
Normal anti-freeze protection
V.1