Code |
Description |
How to solve |
01E |
Wrong phase |
Change phase |
02E |
Lack Phase |
Check power supply wire |
03E |
Water flow switch |
Check water flow or flow switch wire connecting, if switch damaged, change it |
04E |
Antifreeze |
|
05E |
High pressure |
Water flow is too small |
06E |
Low pressure |
No refrigerant or leaked |
07E |
High pressure 2 |
Water flow is too small |
08E |
Low pressure 2 |
No refrigerant or leaked |
09E |
Communication |
Check if the communication line between PC board and operating panel connects firmly |
11E |
Time limited |
Cancel the preset working time |
12E |
High Exhaust temp |
Refer to 4.2 |
13E |
High Exhaust temp 2 |
Refer to 4.2 |
15E |
Tank temp sensor damage |
Change tank temp sensor |
16E |
Copper Coil temp sensor damage |
Change the temp sensor below expansion valve |
17E |
Copper Coil temp sensor2 damage |
Change the temp sensor below expansion valve 2 |
18E |
Exhaust temp sensor |
Change outlet gas temp sensor (On the outlet pipe of compressor) |
19E |
Exhaust temp sensor 2 |
Change outlet gas temp sensor 2 (On the outlet pipe of compressor 2) |
21E |
Air temp sensor |
Change air temp sensor |
22E |
Return water temp sensor |
Change return water temp sensor |
23E |
Over cold when cooling mode |
Water flow is too small |
25E |
Water level switch damage |
Change water level switch |
27E |
outlet Water temp sensor damage |
Change Water outlet temp sensor |
28E |
outlet Water temp sensor2 damage |
Change Water outlet temp sensor2 |
29E |
Return gas temp sensor damage |
Change return gas temp sensor |
30E |
Return gas temp sensor 2 damage |
Change return gas temp sensor 2 |
31E |
Water pressure switch damage |
Check water pressure switch wire line |
32 E |
Outlet water temp too low when cooling |
Check water pump or change setting temperature |
35E |
Compressor over current |
Check if current and voltage stable |
36E |
Compressor 2 over current |
Check if current and voltage stable |