Error Code KNX
Error Description
23
"Discharging temp sensor Tdi failure Discharging temp sensor Td1 failure Discharging temp sensor Td2 failure"
24
"Oil temp sensor Toilp failure Oil temp sensor Toil failure."
25
"Inlet temp of heat exchanger Toci1 failure Inlet temp. of heat exchanger Toci2 failure"
26
"indoor communication failure Reduce the number of indoor units failure Increase the number of indoor units failure"
27
"Oil temp, too high protection (Toil) Oil temp too high protection (Toi2)"
28
"High pressure sensor Pd1 failure High pressure sensor Pd2 failure"
29
Low pressure sensor Ps failure
30
"High pressure switch HPSi failure High pressure switch HPS1 failure High pressure switch HPS2 failure"
31
Liquid pipe pressure Pl failure
32
"Outlet temp of subcooler Tsco failure Liquid pipe SC temp of subcooler Tliqsc failure"
33
EEPROM (AT24C04) failure
34
"Discharging temp too high protection (Tdi) Discharging temp too high protection (Td1) Discharging temp too high protection (Td2)"
35
"4 - way valve reversing failure 4 - way valve reversing failure"
36
"Oil temp, too low protection (Toil) Oil temp too low protection (Toi2)"
37
Lack of phase of 3N power supply or wrong phase sequence
38
High pressure sensor Pd too low protection
39
"Low pressure sensor Ps too low protection Compression ratio too high protection Compression 1 ratio too low protection Compression 2 ratio too low protection"
40
"High pressure sensor Pd1 too high protection High pressure sensor Pd2 too high protection"
41
"Water temp Twi too low protection Water temp Twi too high protection"
42
"Frost protection of water system Water system out of water freeze protection Water flow of Water system is too small to protect"
43
"Discharging temp sensor Tdi too low protection Discharging temp sensor Td1 too low protection Discharging temp sensor Td2 too low protection"
44
Low pressure sensor PS too high protection
45
Communication among outdoors failure
46
"Communication with inverter board 1 failure Communication with inverter board 2 failure"
48
Unloading valve SV1 failure
53
Current detector CT1 failure
54
Communication with Thermal storage module failure
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DS2309110205A